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Prof. Paul Layzell, Principal07/04/2014, 13:30
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Dr Emily Nurse (University College London)07/04/2014, 13:35The Energy Frontier ProgrammeA review of recent Standard Model results from the ATLAS and CMS experiments utilising data from Run I of the LHC is given. Results on jets, bosons plus jets, dibosons and top quark physics are discussed as well as observations of rare Standard Model processes.Go to contribution page
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Dr Henning Flaecher (University of Bristol)07/04/2014, 14:10The Energy Frontier ProgrammeThe search for physics beyond the Standard Model is a priority in the physics programme of the ATLAS and CMS collaborations. These searches cover a wide variety of experimental signatures and proposed models, ranging from, e.g., supersymmetry to heavy gauge bosons, extra dimensions and dark matter. In this talk the latest results obtained with up to 20/fb of data collected at 8 TeV...Go to contribution page
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Prof. William Murray (STFC/Warwick)07/04/2014, 14:45The Energy Frontier ProgrammeThe LHC Higgs programme has been spectacularly successful in discovering what has been variously called 'A new boson', 'a Higgs-like boson' and 'a Higgs boson' even while the machine was running well below design energy. But what do we really know about this particle? Why don't we just call it 'The Higgs boson', and will we ever do so? And what can it tell us about the remaining mysteries such...Go to contribution page
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Dr Chris Quigg (Fermi National Accelerator Lab. (US))07/04/2014, 15:20The Energy Frontier ProgrammeI will summarize the theoretical context for the search for the avatar of electroweak symmetry breaking, review what we have learned about H(125), and outline what we need to learn about the new particle. I will describe some of the questions raised and opportunities opened by the discovery of H(125), and how they influence our thinking about future accelerators. Finally, I will try to connect...Go to contribution page
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Dr Anthony Challinor07/04/2014, 16:15Particle Astrophysics, Current and FutureI review the main cosmology results from the 2013 Planck release. I will also discuss some developments since the original submission of the papers, and put the Planck results in the context of more recent results from the BICEP2 experiment.Go to contribution page
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Prof. Paula Chadwick07/04/2014, 16:45Particle Astrophysics, Current and FutureGamma-rays provide a unique probe of the non-thermal universe, allowing us to investigate a wide range of astroparticle physics and astronomy. At present, instruments such as the space-borne Fermi telescope and the ground-based HESS, MAGIC and VERITAS telescopes are providing us with a wealth of results, covering active galactic nuclei, supernova remnants, pulsars, gamma-ray bursts and many...Go to contribution page
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Dr James Nikkel07/04/2014, 17:15Particle Astrophysics, Current and FuturePhysicists are still looking for what makes up most of our galaxy, and while there may be some hints, dark matter still has not been conclusively observed in the lab. I will present the current status of direct dark matter detection and the direction in which this research is headed.Go to contribution page
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Prof. Katherine Freese07/04/2014, 17:40Particle Astrophysics, Current and FutureCosmology has just had a major discovery: gravity waves from the early Universe. The Cosmic Microwave Background polarization experiment BICEP2 has announced detection of B-modes, which can be explained as the gravitational wave signature of inflation. I will discuss the significance of these ground-breaking results for cosmology. This discovery, if confirmed in future data sets, is a...Go to contribution page
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Prof. Franz Muheim08/04/2014, 08:30Flavour Physics and BeyondWith the successful start of the Large Hadron Collider at CERN quark flavour physics has entered a new era. Unprecedented samples of Beauty and charmed mesons and baryons have been collected by the LHCb experiment, which was built for this purpose, ATLAS and CMS also have large flavour physics data samples and the Tevatron and B-factory experiments continue to produce interesting...Go to contribution page
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Dr Evgueni Goudzovski08/04/2014, 09:05Flavour Physics and BeyondObservation of charged lepton flavour violation (CLFV) would provide a clear signal for physics beyond the Standard Model. Selected recent experimental results and near-term prospects for the searches for CLFV processes are discussed. The processes considered include μ→e conversion, μ→eγ decay and lepton flavour violating decays of the charged kaons.Go to contribution page
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Dr Clark Griffith08/04/2014, 09:35Flavour Physics and BeyondMeasurement of a non-zero permanent electric dipole moment (EDM) would be clear evidence of a new source of CP violation outside of the quark mixing CKM matrix, and would be a possible signature of Supersymmetry. I will give an overview of current EDM experiments, including searches for atomic EDMs, recent improvements on the electron EDM upper bound measured in polar molecules, and the...Go to contribution page
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Dr Helen O'Keeffe08/04/2014, 10:30The Neutrino SectorIn the last decade, neutrino experiments have provided overwhelming evidence for physics beyond the Standard Model. In this talk I will introduce the theory of neutrino oscillations and discuss current long-baseline neutrino oscillation experiments. Recent results from the T2K and MINOS experiments and prospects for the current generation of experiments will be presented.Go to contribution page
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Dr Jeff Hartnell08/04/2014, 11:05The Neutrino SectorNeutrinos are the second most abundant particle in the universe and yet one of the least understood. Their fundamental nature, whether they are their own antiparticle, is not yet known and the heaviest neutrino has a mass that we currently only known to within a range that spans about two orders of magnitude. In this talk I will review single beta decay experiments, which give us a model...Go to contribution page
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Dr Ryan Nichol08/04/2014, 11:35The Neutrino SectorNeutrino particle astrophysics is a frontier field at the crossroads of particle physics and astrophysics. Given the low fluxes of astrophysical neutrinos, gigantic detection volumes are necessary to detect the weakly interacting particles. The past twelve months have been an exciting time in the field on neutrino particle astrophysics, with the IceCube experiment claiming the first evidence...Go to contribution page
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Mr Tomas Gonzalo (UCL)08/04/2014, 13:00The non-observation of supersymmetric signatures in searches at the Large Hadron Collider strongly constrains minimal supersymmetric models like the CMSSM. We explore the consequences on the SUSY particle spectrum in a minimal SO(10) with large D-terms and non-universal gaugino masses at the GUT scale. This changes the sparticle spectrum in a testable way and for example can sufficiently split...Go to contribution page
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Jonathan Davis (IPPP, Durham University)08/04/2014, 13:00The CoGeNT collaboration claim to have observed a signal of light Dark Matter scattering off nuclei in their detector, to a significance of approximately 2.5 sigma. I will critically assess these recent, and earlier, claims. I present a Bayesian analysis of the 1136 live days CoGeNT data, with particular focus on the removal of surface events through the use of nuisance parameters. I derive...Go to contribution page
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Mr Xingguo Li (Manchester University)08/04/2014, 13:00The variable $\varphi^\star$ probes the same physical effects as the $Z/\gamma^\star$ boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. Using 10.4 fb$^{−1}$ of proton-antiproton collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable $\varphi^\star$ in events containing dimuon pairs...Go to contribution page
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Dr Stefano Torre (UCL)08/04/2014, 13:00The NEMO-3 detector, installed in the Modane underground laboratory, ran between February 2003 and January 2011. The NEMO-3 experiment employed a tracker and calorimeter detector technology to fully reconstruct the topology of the events generated in thin foils of active material. Thanks to its unique design, NEMO-3 studied the details of the Double-β decay in seven isotopes ($\rm{^{100}Mo}$,...Go to contribution page
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James Mccarthy (University of Birmingham (GB))08/04/2014, 13:00Decays involving $\eta$ and $\eta\prime$ mesons are particularly interesting to theorists, as they allow some insight into the relatively poorly understood topic of $\eta-\eta\prime$ mixing. This subject has been covered extensively using decays of $B$ and $B_s$ mesons, however, no equivalent processes have been observed in the baryonic sector. This talk outlines the search for the rare...Go to contribution page
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Samuel Webb (University of Manchester (GB))08/04/2014, 13:15The $\phi_{\eta}^{\star}$ angle of Drell-Yan di-lepton pairs probes initial state gluon radiation and its definition relies only upon the well-measured lepton directions. The $\phi_{\eta}^{\star}$ distribution is sensitive to similar but complementary physics to the intermediate boson transverse momentum distribution. A measurement of the normalised $\phi_{\eta}^{\star}$ differential cross...Go to contribution page
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Dr Lea Reichhart (University College London)08/04/2014, 13:15A large number of astronomical and cosmological observations point towards the existence of an unknown dark component dominating the matter content of our Universe. The most compelling candidates for dark matter are Weakly Interacting Massive Particles (WIMPs), which may be detected in low background experiments located deep underground, searching for direct interactions of WIMPs with...Go to contribution page
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Mr Michael Kiss (STFC (RAL))08/04/2014, 13:15Using the data from the LHCb experiment at CERN , the flavour structure of physics beyond standard model (SM) is probed using one of the rare B-decay channels, namely the $\Lambda_{b} \to pK\mu\mu$ decay. This decay occurs through a flavour changing neutral current process mediated by electroweak penguin and box diagrams in the SM. It is forbidden at the tree level and suppressed at the...Go to contribution page
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Mr Guillaume Eurin (University College London (UK))08/04/2014, 13:15The main goal of the SuperNEMO collaboration is to search for neutrinoless double-$\beta$ decay. This would prove that the neutrino is a Majorana particle ($\nu$ = $\overline{\nu}$). Today the best lower limits on half-lives of this process are set around 10$^{24}$ - 10$^{26}$ years as obtained by the NEMO-3 experiment (for the 2$\beta$ isotope $^{100}$Mo) and other experiments. Several...Go to contribution page
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Robyn Lucas (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 13:15Supersymmetry scenarios in which squarks, particularly in the third generation, are close in mass to the lightest supersymmetric particle are well motivated and offer a possibility for hidden, natural SUSY. Traditional searches are insensitive to these compressed mass spectra scenarios due to the very soft decay products. A search for light top squarks close in mass to the LSP at the CMS...Go to contribution page
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Mr Adam Bailey (Imperial College)08/04/2014, 13:30$^{85}$Kr is an anthropogenic radioisotope which makes up a very small fraction of the Kr abundance in the atmosphere, and contributes to the background in double-phase xenon detectors searching for WIMP dark matter. It has a half-life of 10.8 years and decays predominantly via a $\beta^-$ decay with an endpoint of 687 keV. Commercially available xenon procured for LUX contained 130 ppb g/g...Go to contribution page
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Christian Gutschow (University College London (UK))08/04/2014, 13:30Events with jets produced in association with a $Z$ boson in proton-proton collisions can be used to study distributions sensitive to the vector boson fusion (VBF) process at CERN's Large Hadron Collider. This process is interesting to study because of its similarity to the VBF production of a Higgs boson as well as its sensitivity to new physics via the WWZ triple gauge...Go to contribution page
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Pawel Guzowski (University of Manchester)08/04/2014, 13:30The SuperNEMO experiment aims to search for neutrinoless double beta decay. If observed, this would show that the neutrino is its own antiparticle and be the first evidence for total lepton number violation. With 100 kg of source, a half-life sensitivity of order $10^{26}$ years (effective neutrino mass sensitivity down to 50 meV) can be achieved. The experimental techniques are similar to the...Go to contribution page
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Itzebelt Santoyo Castillo (University of Sussex (GB))08/04/2014, 13:30The ATLAS experiment at the Large Hadron Collider (LHC) has collected an unprecedented amount of data in the 3 years of data taking since its start. In this talk I will discuss the latest results from the Supersymmetry (SUSY) searches in events with three leptons (electron/muon/tau) in the final state. The search is performed on the full dataset collected by the experiment in 2012, at a...Go to contribution page
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Sam Cunliffe (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 13:30A status report for the analysis of $B^0\rightarrow K^{\star}(892)^{0} (\rightarrow K^+ \pi^-) \mu^+\mu^- $ decays at the LHCb detector at the LHC is presented. This process is the decay of a beauty meson to a vector meson final state and produces an angular distribution in the final state decay products. This angular distribution is highly sensitive to the contributions from Beyond Standard...Go to contribution page
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Zara Jane Grout (University of Sussex (GB))08/04/2014, 13:45A search for supersymmetry is presented, using four or more leptons with the ATLAS detector using $\sqrt{s} =$ 8 TeV data taken at the LHC during 2012. The motivations for this search. optimisation procedure and background estimation are outlined, and results presented for a number of RPC and RPV interpretations.Go to contribution page
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Dr Venus Keus (University of Southampton)08/04/2014, 13:45Multi Higgs-doublet models (NHDMs) are amongst the simplest extensions of the Standard Model, motivated for instance by Supersymmetric scenarios. I will discuss NHDMs with various symmetry groups which contain viable dark matter candidates, preserved by the remnant of the symmetry after EWSB. I will describe the dark matter phenomenology of these models and look into new Higgs decay channels...Go to contribution page
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Peter Robert Davison (University College London (UK))08/04/2014, 13:45This talk will present the first differential cross section measurements for the production of a Z boson produced in association with at least two b-jets. Data was collected using the ATLAS detector running at a centre of mass energy of 7 TeV during 2011. The analysis selects events with a leptonically decaying Z boson (to two electrons or two muons) produced in conjunction with two jets...Go to contribution page
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Cristiano Alpigiani08/04/2014, 13:45Weak decays that are naturally suppressed in the Standard Model, such as processes with flavour-changing neutral-currents, are perfect for indirect searches of new physics. These decays allow us to investigate higher energy ranges with respect to direct searches thus representing a fundamental complementary tool. Results on the ATLAS search for the $B_s\rightarrow \mu^+\mu^-$ rare decay...Go to contribution page
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Dr Philip Jones (QMUL)08/04/2014, 13:45A summary of the current status of the SNO+ experiment. The SNO+ experiment located in the SNOLAB facility in Sudbury, Ontario, Canada will primarily search for neutrinoless double beta decay by deploying Te130 into a kTonne of liquid scintillator. The experiment will additionally study solar, geo, supernova (if one occurs) and reactor neutrinos as well as nucleon decay in a separate water phase.Go to contribution page
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Dr Joseph Walding (Royal Holloway, University of London)08/04/2014, 14:00DEAP-3600 is a single-phase liquid Argon dark matter detector currently under construction at SNOLAB in Canada with first physics data expected in the summer, 2014. DEAP has been designed to achieve extremely low background rates, including those from 39Ar β decays, neutron scatters, and surface α contamination, with the goal of measuring the spin-independent WIMP-nucleon cross section down...Go to contribution page
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Simon Robert Magee Wright (University of Cambridge (GB))08/04/2014, 14:00Measurements of the direct $CP$ asymmetry, $A_{CP}$, and the $CP$ difference in the $\mu^+ \mu^-$ forward-backward asymmetry, $\Delta A_{FB}$, are made for the $B^{0} \rightarrow K^{\star{0}}\mu^+\mu^-$ and $B^+ \rightarrow K^+\mu^+\mu^-$ decay modes using $pp$ collision data corresponding to an integrated luminosity of 3$fb^{-1}$ collected by LHCb in 2011 and 2012. The respective control...Go to contribution page
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Ashley Back (Queen Mary, University of London)08/04/2014, 14:00The multi-purpose SNO+ detector, part of SNOLAB, is currently being filled with ultra-pure water, marking the first step before the addition of liquid scintillator and then Tellurium. While the level of water in the detector rises, the level of activity in preparation for commissioning is accordingly steadily increasing. Recent periods of continuous operation—each lasting of order two...Go to contribution page
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Craig Anthony Sawyer (University of Oxford (GB))08/04/2014, 14:00One of the most challenges backgrounds to vector boson production in association with jets is that of QCD multijets. Current Monte Carlos struggle to model the background well and in adequate sample sizes. As a result data driven methods of estimation have been developed for use in precision analyses at the LHC. In this talk I will summarise the development of these methods in W+jet and R-jet...Go to contribution page
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Gareth Thomas Fletcher (University of Sheffield (GB))08/04/2014, 14:00The strong production of Supersymmetric particles at the LHC offers one of the best current direct discovery prospects for Supersymmetry. This talk will focus on the event topologies of zero leptons 2-6 jets and missing transverse energy. Based on recent searches with the ATLAS detector on 8 TeV LHC data searching for squarks and gluinos.Go to contribution page
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Adrian Andrew Pritchard (University of Liverpool (GB))08/04/2014, 14:15The decay of a $B_{s}^{0}$ meson to two oppositely charged $D_{s}$ mesons is one that is postulated to be almost exclusively CP even. Measuring the properties of this decay can therefore give important information about the behaviour of the $B_{s}^{0}$ system. This presentation will focus on the measurement of the inclusive branching fraction of $B_{s}^{0} \rightarrow D_s^{(\ast)+}...Go to contribution page
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Alistair Butcher (R)08/04/2014, 14:15DEAP-3600 is a single phase liquid Argon dark matter detector based at SNOLab. Commissioning will start in May 2014 with first physics data is expected in the fall of 2014. This talk will present an overview of the analysis and calibration framework. In particular, some of the challenges found in characterising the photomultiplier tubes and their effect on timing based particle identification...Go to contribution page
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Scott Stevenson (University of Oxford (GB))08/04/2014, 14:15Central exclusive production (CEP) is a mechanism by which a final state is produced in isolation at central rapidity in an elastic collision. CEP provides a uniquely clean environment in which to carry out meson spectroscopy, and to search for evidence of phenomena such as gluon saturation. We introduce CEP and discuss the suitability of the LHCb detector to its study. LHCb measurements of...Go to contribution page
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Christopher Lucas (University of Bristol (GB))08/04/2014, 14:15A search for Supersymmetry in the all-hadronic channel using the CMS detector will be presented. The analysis looks for a jets + MET signature using the alphaT kinematic variable. Events are categorised in independent bins of jet multiplicity, b-tagged jet multiplicity, and HT, the scalar sum of jet pT. Interpretations are shown in a variety of Simplified Model Spectra, including both...Go to contribution page
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Mark Lancaster (University College London (UK))08/04/2014, 14:15The 2004 measurement of the muon’s anomalous magnetic moment by the E821 experiment at Brookhaven is the second most cited paper in experimental particle physics behind the observation of neutrino oscillations. This measured value differs by 3.6σ from the Standard Model (SM) prediction. This may be indicative of new physics beyond the SM or a statistical fluctuation. In this talk I will...Go to contribution page
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Hilal Kucuk (University of London (GB))08/04/2014, 14:30Jets are defined choosing the anti-kt algorithm with two radius parameters of 0.4 and 0.6. The inclusive double-differential cross section measurement at $\sqrt{s}=$8 TeV at 2012 is performed as a function of jet transverse momentum, in bins of jet rapidity. The data sample with no pile-up has been collected on low mu run for detector calibration and “clean” physics studies. Additionally, it...Go to contribution page
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Dr Sam Henry (University of Oxford)08/04/2014, 14:30A key requirement of the g−2 experiment, aiming to measure the muon anomalous magnetic dipole moment to 0.14ppm, is to monitor the magnitude of the magnetic field around the storage ring to 0.07ppm. This will be done with several hundred proton NMR magnetometers. These must all be calibrated against a standard magnetometer, to account for the ~0.1ppm shifts of individual probes due to the...Go to contribution page
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Haofei Luo (University of Edinburgh (GB))08/04/2014, 14:30Using 3fb$^{-1}$ of $pp$ collision data collected at $\sqrt{s} = 7$ and 8 TeV by LHCb experiment in 2011 and 2012, first observation is made of the suppressed flavor changing neutral current (FCNC) decay mode $B_s^0 \to \phi (K^+ K^-) f_0(980) (\pi^+ \pi^-)$. In the $\pi^+ \pi^-$ invariant mass range below 1100 MeV/c$^2$, the branching ratio, using the reference decay $B_s^0 \to \phi \phi$, is...Go to contribution page
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Mireia Crispin Ortuzar (University of Oxford (GB))08/04/2014, 14:30The Large Hadron Collider (LHC) ran in 2012 at the highest energy reached in a collider so far, allowing us to probe particle masses at the TeV scale. Strongly interacting particles at this mass scale are expected to decay in cascades, producing many jets from emissions of quarks and/or gluons and missing energy from weakly interacting daughters. This is the main target of the search for...Go to contribution page
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Dr Malcolm Fairbairn (King's College London)08/04/2014, 14:30The continuing search for dark matter will run into problems in the medium term future due to the background of neutrinos (especially from the Sun) which acts as a floor on the M-sigma plane beyond which it seems impossible to probe. We ask how far one can improve this situation using detailed energy, time and directional event information.Go to contribution page
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Andrew Edmonds (UCL)08/04/2014, 14:45I will describe the COMET experiment, which will search for muon to electron conversion in aluminium, and I will also present some of the work I have done for it.Go to contribution page
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Joshuha Thomas-Wilsker (Royal Holloway, University of London (GB))08/04/2014, 14:45The ATLAS experiment has several algorithms which are used to identify b-jets. In this talk I concentrate on the so-called “MV1” b-tagging algorithm, which includes information on displaced secondary vertices and the impact parameters of tracks as inputs into a Neural Network. To calibrate this b-tagging algorithm we test how well it works on b-jets in simulation and then compare this with its...Go to contribution page
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Mr Richard Eggleston (RHUL)08/04/2014, 14:45The Dark Matter Time Projection Chamber (DMTPC) project aims to detect the direction of dark matter-induced nuclear recoils, in order to correlate a candidate signal with the astrophysical dark matter wind associated with the Earth's motion through the galactic dark matter halo. This talk will discuss recent progress with emphasis on directionality.Go to contribution page
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Thomas Gillam (University of Cambridge (GB))08/04/2014, 14:45The most recent ATLAS analysis searching for two like-charge or three leptons places improved bounds on several strongly-produced supersymmetric models, both simplified and phenomenological. Whilst the targeted event signatures have very low backgrounds from the standard model, there are contributions from fake and charge-flipped leptons. I shall present an overview covering the data-driven...Go to contribution page
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Mr Sam Hall (Imperial College London)08/04/2014, 14:45Elements of the Cabibbo-Kobayashi-Maskawa (CKM) matrix are accessible through a variety of processes. The Decay $B^+\!'\rightarrow D_s^+\phi$ is an annihilation diagram at tree level, which is sensitive to $V_{ub}$. While, contributions from the matrix element $V_{ts}$ are present in the loop level decays $B^+\!\rightarrow K^+\pi^+\pi^-\mu^+\mu^-$ and ...Go to contribution page
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Mr Donal Hill (University of Oxford, LHCb Experiment)08/04/2014, 15:00Determination of the CKM angle $\gamma = \mbox{arg}[-V_{ud} V_{ub}^{\star}/(V_{cd} V_{cb}^{\star})]$ is one of the key goals of the LHCb experiment. The cleanest method to access this weak phase is through measurements of $\gamma$-sensitive observables in $B^{\pm} \rightarrow DK^{\pm}$ and $B^{\pm} \rightarrow D\pi^{\pm}$ decays. The largest interference and asymmetries, and thus the greatest...Go to contribution page
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Felix Kahlhoefer (University of Oxford)08/04/2014, 15:00Uncertainty in the local velocity distribution of dark matter is a key difficulty in the analysis of data from direct detection experiments. In my talk, I will propose a completely new approach for dealing with this uncertainty that does not involve any assumptions about astrophysics. By decomposing the dark matter velocity distribution into a sum of a large number of streams with different...Go to contribution page
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Ms Amy Cottle (University of Oxford)08/04/2014, 15:00Neutron electric dipole moment (nEDM) experiments require precision magnetometry to correct for systematic effects due to magnetic field fluctuations. I discuss the options for such magnetometers and present details of a 12-SQUID magnetometry system constructed for use in a cryogenic nEDM experiment. This has been developed to operate in 0.5 K superfluid helium and installed and tested in...Go to contribution page
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Kees Jan De Vries (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 15:00We show the results of global fits of the two constrained models of supersymmetry (SUSY): the constrained MSSM (cMSSM) and non-universal Higgs mass "1" (NUHM1). We take into account constraints from cosmology, electroweak precision observables, B-physics, Higgs physics and direct searches for SUSY at the LHC.Go to contribution page
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Jeson Abe Jacob (University of Bristol (GB))08/04/2014, 15:00Measurements of the top-quark pair differential cross-section with respect to global distributions including missing transverse energy, scalar sum of jet transverse momenta, scalar sum of total event scalar sum, leptonic W boson transverse momentum and leptonic W boson transverse mass have been carried out on 19.7fb-1 of data at 8TeV obtained from the CMS detector at the LHC. After...Go to contribution page
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Oliver Burrow (University of Liverpool)08/04/2014, 15:15Atom interferometers are precision instruments, currently capable of measuring forces an unprecedented precision, with this precision becoming more precise with the development of new techniques. Using atomic interferometers, a parameter search can be made to investigate the dark contents of the vacuum and shed some light on fundamental physics questions such as "What is the nature of dark...Go to contribution page
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Mr Duncan Leggat (University of Brunel)08/04/2014, 15:15The observation of the associated production of a single top quark and W boson using 12.2 fb$^{-1}$ of pp collisions at $\sqrt{s} = 8$ TeV with the CMS experiment is presented. A multivariate analysis based on kinematic variables was used to discriminate signal from the dominant ttbar background. The observed signal has a significance of 6.0$\sigma$ and a cross section of...Go to contribution page
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Mr Ashley Joy (UCL)08/04/2014, 16:00X-CSIT (X-ray Camera SImulation Toolkit) is a software framework and toolkit for creating simulations of 2D X-ray pixel detectors. As a toolkit, X-CSIT is designed to be highly modular and adaptable to the wide variety and variations found in X-ray cameras. X-CSIT is under development at UCL for European XFEL, and will be used to create simulations of the three bespoke 2D detectors at European...Go to contribution page
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Carl Jeske (University of Warwick)08/04/2014, 16:00I will present results of a search for the 125 GeV Higgs boson decaying to a pair of tau leptons. The dataset used is 20.3fb$^{-1}$ of proton-proton collision recorded by the ATLAS detector at a centre of mass energy of 8 TeV. The observed (expected) deviation from the background only hypothesis corresponds to a significance of 4.1 (3.2) standard deviations. The measured signal strength is...Go to contribution page
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Mr Andrew Furmanski (University of Warwick)08/04/2014, 16:00The T2K experiment is a long baseline neutrino oscillation experiment. One of the largest sources of uncertainty in neutrino oscillation experiments comes from our poor understanding of neutrino interaction cross-sections. I will explain why this is the case, and summarise the work that is being done to improve on the current situation.Go to contribution page
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Nazim Hussain (University of Oxford (GB))08/04/2014, 16:00Charged $B$ decays of the form $B^\pm \rightarrow DK^\pm$ (where $D$ represents either a $D^0$ or a $\bar{D^0}$) are powerful tools in the measurement of the $CP$-violating CKM angle $\gamma$. Channels where the $D$ decays to a final state involving a $\pi^0$, such as $D \rightarrow \pi^\pm K^\mp \pi^0$, $D \rightarrow \pi^\pm \pi^\mp \pi^0$ and $D \rightarrow K^\pm K^\mp \pi^0$ are promising...Go to contribution page
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Mr Ryan Wilkinson (IPPP, Durham University)08/04/2014, 16:00Despite the large number of dedicated experiments, an understanding of the particle nature of dark matter and direct evidence for its existence have remained elusive. However, detection methods generally assume that dark matter consists of cold, massive particles (CDM). In this talk, I will discuss how cosmological data from the CMB and Large-Scale Structure can be used to study dark matter...Go to contribution page
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Iain Haughton (University of Manchester (GB))08/04/2014, 16:15I present an overview on the development of cutting edge 3D diamond and 3D silicon detectors for future upgrades of LHC experiments, with a focus on work done in Manchester. A 3D geometry and its beneficial effects on a detectors radiation tolerance, signal speed and power dissipation have been extensively studied in silicon. As such, 3D silicon is a proven technology; it is included in the...Go to contribution page
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Ludovica Aperio Bella (University of Birmingham (GB))08/04/2014, 16:15This contribution will review the latest ATLAS results on the properties of the Higgs boson in the decay channel $H\rightarrow ZZ\rightarrow 4\ell$ using approximately 25 fb-1 of pp collision data collected during the LHC Run1 at 7 TeV and 8 TeV. The measurements of the mass and the couplings of the newly discovered boson are presented together with the spin-parity analysis results.Go to contribution page
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Daniel Charles Craik (University of Warwick (GB))08/04/2014, 16:15Dalitz plot analyses of $B^0_{(s)}\rightarrow D^0K\pi$ are interesting for multiple reasons. The decay $B^0\rightarrow D^0K\pi$ can be used to make a measurement of the CKM angle $\gamma$. The $B^0_s$ decay is interesting both as a potential background to the $\gamma$ measurement but also to obtain branching fraction measurements for the various two body decays that contribute to...Go to contribution page
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Pip Hamilton (Imperial College London)08/04/2014, 16:15Cross-section measurements are extremely important for reducing systematic uncertainties in neutrino oscillation experiments, but are limited by our understanding of effects inside the target nucleus. Measuring neutrino interactions in gaseous detector allows the models used to simulate these effects to be empirically tested, thanks to the high spatial resolution of the detector and the...Go to contribution page
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Henrique Araujo (Imperial College London)08/04/2014, 16:15The LUX-ZEPLIN (LZ) experiment is a next-generation search for Weakly Interacting Massive Particles, scaling the very successful double-phase xenon technology to multi-tonne target mass. LZ will be deployed at the 4850-ft level of the Sanford Underground Research Facility (South Dakota, USA) after completion of LUX, which is presently operating there. At its core, LZ will feature a 7-tonne...Go to contribution page
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Dr Chamkaur Ghag (University College London)08/04/2014, 16:30The LZ dark matter experiment will require an unprecedented low background rate within its fiducial volume, defining strict constraints on radioactivity from construction materials that is further mitigated through the combination of powerful self-shielding from liquid xenon, 3D event vertex reconstruction, and external veto detector systems. An aggressive screening campaign with cutting-edge...Go to contribution page
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Kate Doonan (University of Glasgow (GB))08/04/2014, 16:30Planar pixel sensors based on the Front-End-I4 (FE-I4) read-out developed for the Insertible b-Layer (IBL) are being characterised in laboratory tests and in test beams. Systematic tests are being performed to judge the performance of these sensors and read-out chips. Multiple geometries of pixel sensor have been developed. Laboratory tests include threshold and time-over-threshold tuning as...Go to contribution page
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Rafael Silva Coutinho (University of Warwick (GB))08/04/2014, 16:30The study of charmless three body decays with final states including a $K^{0}$ meson has an extensive number of application. In this talk a review of the recent and ongoing analyses at LHCb will be reported. First, a search for previously unobserved decays of beauty baryons to the final states `$K^{0}_{\mathrm{S}}p\pi^{-}$` and `$K^{0}_{\mathrm{S}}pK^{-}$` is reported. The analysis is based...Go to contribution page
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Matthew Ian Jackson (University of Liverpool (GB))08/04/2014, 16:30Since its discovery a large effort has been made to improve analyses and confirm the properties of the Higgs Boson. At a mass of 125 GeV Higgs to $b\bar{b}$ is the dominant decay mode, however large QCD backgrounds prevent direct analysis, instead an analysis of Higgs to $b\bar{b}$ is considered where the Higgs is produced in association with a Vector Boson ($W$/$Z$). A brief overview of this...Go to contribution page
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Mr Michail Lazos (Liverpool University)08/04/2014, 16:30To study the neutrino interaction with one proton at the final state we need to make a proton selection. I will present my latest results of my proton selection. It is a very interesting channel and help us understand the CP violation in the lepton sector. The theory is well understood but the analysis is challenging as the background is much greater than the signal.Go to contribution page
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Simon Peeters (University of Sussex)08/04/2014, 16:45Building on the experience with single-phase Liquid Argon detectors, wich are particularly well-suited for high-mass WIMP sensitivity, I will present a conceptual design for a next-generation 50-tonne detector. In this large detector, surface background events which are one of the primary concerns for DEAP-3600, are mitigated more readily with position reconstruction, ultimately allowing a...Go to contribution page
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John Beddow (University of Glasgow (GB))08/04/2014, 16:45Results from the recently published search for the rare decays $ {B^0}\to p\bar{p} $ and $ B_s^0\to p\bar{p} $ carried out using 0.92 fb$^{-1}$ of 7 TeV proton-proton collisions collected by the LHCb experiment in 2011 will be presented ([arXiv:1308.0961 [hep-ex]][1]). The talk covers the physics motivation for the analysis and the tensions between existing theoretical predictions of the...Go to contribution page
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Davide Braga (RAL/STFC)08/04/2014, 16:45I will present the front-end readout ASIC for the High-Luminosity Upgrade of the CMS Strip Tracker. The CMS Binary Chip 2 is a full-scale prototype ASIC with 254 channels, capable of identifying high transverse-momentum trigger primitives by correlating hits between the two closely-spaced silicon strip sensors of the Tracker module. I will present the performance of the chip, together with the...Go to contribution page
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Ian Allan Connelly (Royal Holloway, University of London)08/04/2014, 16:45With the expected reach of ttH(H$\to$bb) not quite approaching Standard Model sensitivity, it is important to squeeze as much information out of the data as possible. The matrix element method calculates the probability of an event coming from signal (ttH) and background (ttbb) decay process by calculating the most likely kinematics of the hard scattering partons and comparing with the...Go to contribution page
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Mr Dominic Brailsford (Imperial College)08/04/2014, 16:45We present the physics opportunities which can be explored with the Electromagnetic Calorimeters (ECals) of the Tokai-to-Kamioka (T2K) off-axis near detector (ND280). Due to the ECal's high mass, a large fraction of the neutrinos incident on ND280 interact within the constituent lead layers which form the ECal. This makes the ECal an excellent detector for use in making the world's first...Go to contribution page
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Manuel Proissl (University of Edinburgh (GB))08/04/2014, 17:00An updated direct search for a Standard Model Higgs boson decaying into pairs of $b$ quarks in association with a W or Z boson using the ATLAS detector at the LHC is presented. The search is performed in the three decay modes $ZH\rightarrow\nu\nu b\bar{b}$, $WH\rightarrow\ell\nu b\bar{b}$ and $ZH\rightarrow\ell\ell b\bar{b}$ with $\ell$ denoting either electrons or muons and has to cope with...Go to contribution page
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Luke Southwell (Lancaster University)08/04/2014, 17:00In 2014 the T2K experiment will reverse the polarity of the magnetic horns and begin running with an anti-neutrino beam for the first time. Differences in the oscillation probabilities between neutrinos and anti-neutrinos may provide insight into charge-parity violation in the leptonic sector. In order to measure the the anti-electron neutrino contamination in T2K's anti-muon...Go to contribution page
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Francis Oliver Newson (University of Birmingham (GB))08/04/2014, 17:00Heavy neutrinos are predicted by many beyond-the-Standard-Model theories of particle physics, with proposed masses ranging from a few eV/$c^{2}$ up to the Planck scale. Two-body kaon decays provide a method to search for these particles in a model independent manner, for masses between 100 MeV/$c^{2}$ and 388 MeV/$c^{2}$. In 2007, the NA62 experiment at CERN collected a large sample...Go to contribution page
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Mark Elliot Smith (University of Manchester (GB))08/04/2014, 17:00The method for the measurement of two charm CP violating observables, $A_{\Gamma}$ and $y_{CP}$, is presented. The results for $A_{\Gamma}$ are shown to be the most precise to date.Go to contribution page
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Euan Niall Cowie (University of Bristol (GB))08/04/2014, 17:00TORCH (Time Of internally Reflected CHerenkov radiation) is an innovative time-of-flight system designed to provide particle identification over large areas up to a momentum of 10 GeV/c. Cherenkov photons emitted within a 1 cm thick quartz radiator are propagated by internal reflection and imaged on to an array of Micro-Channel Plate photomultiplier tubes (MCPs). Performing 3-$\sigma$...Go to contribution page
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Allan Kenneth Lehan (University of Liverpool (GB))08/04/2014, 17:15Long lived neutral particles that decay within the volume of a particle detector to a photon and a dark matter candidate will leave a unique signature which cannot be explained by any Standard Model process providing clear evidence of new physics. This talk will present an analysis performed on the data collected by the ATLAS Collaboration in 2011 at a center of mass energy of 7TeV...Go to contribution page
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Samuel Thomas Harnew (University of Bristol (GB))08/04/2014, 17:15Although mixing in neutral K and B systems has long been established, mixing in neutral D mesons has only recently been observed. In fact, in 2012 LHCb published the first single observation of D mixing in $D^{0} \to K^{-}\pi^{+}$ decays. LHCb has now collected enough data to study D mixing in multi-body D decays such as $D^{0} \to K^{+}\pi^{-}\pi^{0}$ and $D^{0} \to...Go to contribution page
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Thomas Bird (University of Manchester (GB))08/04/2014, 17:15A major upgrade of the LHCb experiment is planned to start taking data in 2020. The LHCb Vertex Locator will be replaced by a new and highly novel detector. It will be based on radiation hard hybrid pixel sensors, with a pixel dimension of $55\times{}55\,{\mu{}}\text{m}$, cooled using $\text{CO}_2$ flowing through microchannels integrated into the silicon. During operation, the sensors...Go to contribution page
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Ines Ochoa (University of London (GB))08/04/2014, 17:15One of the main results of the Large Hadron Collider Run I was the discovery of the Higgs boson by ATLAS and CMS experiments. The boson has been discovered with a mass of around 125 GeV and all measurements performed so far are compatible with the Standard Model predictions. However, clear evidence of the boson decaying to a pair of $b$-quarks has not been observed yet, despite it being...Go to contribution page
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Ms Linda Cremonesi (Queen Mary University of London)08/04/2014, 17:15Hyper-Kamiokande is a next generation underground water Cherenkov detector which will serve as far detector of a long-baseline neutrino experiment in Japan (the natural extension of the already successful T2K experiment). The upgraded facilities at J-PARC will deliver an off-axis narrow band (~0.6 GeV) (anti-)neutrino beam (750kW~1MW) and direct it to Hyper-K that will measure the...Go to contribution page
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Daniele Mirarchi (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 17:30One of the main challenges at the CERN Large Hadron Collider (LHC) is to handle the unprecedented stored beam energies that are expected to be up to 360MJ with 7~TeV beams at 25~ns bunch spacing. This may increase to 500~MJ in the LHC High Luminosity upgrade project (HL-LHC). A complex collimation system, able to intercept and to absorb beam halo particles efficiently is used to minimize...Go to contribution page
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Mr Thomas Stainer (University of Liverpool)08/04/2014, 17:30LAGUNA-LBNO (Large Appartus studying Grand Unification and Neutrino Astrophysics for Long Baseline Neutrino Oscillations) is a feasibility study with the intent to host next generation neutrino detectors. These experiments possess the ability to probe the universe further with proposed detectors of the 100 kton scale. A basic overview of the long baseline experiment is presented with the focus...Go to contribution page
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Marc Bret Cano (University of London (GB))08/04/2014, 17:30The ATLAS detector at the Large Hadron Collider is used to search for high mass resonances decaying to an electron-positron pair or a muon-antimuon pair. Results are presented from the analysis of pp collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of approximately 21 $fb^{−1}$. A narrow resonance with Standard Model Z couplings to fermions is excluded...Go to contribution page
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Benedict Allbrooke (University of Birmingham (GB))08/04/2014, 17:30The most recent published results for the ATLAS search for a Standard Model Higgs Boson decaying to bb in association with a W boson will be presented. The Higgs decay to bb is a crucial test of the Standard Model Higgs Boson but the search must be made in associated production modes. The search has been performed using 4.7 fb$^{-1}$ of data collected at $\sqrt{s}$=7TeV and 20.3 fb$^{-1}$ at...Go to contribution page
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Paul Scovell (University of Oxford)08/04/2014, 17:30Maintaining stable operating conditions is of utmost importance in any dark matter detector. The LZ detector will be the largest two-phase liquid xenon detector ever constructed and as such will require unsurpassed levels of monitoring. This talk will discuss R&D efforts to this end in the UK and will cover the development of position, liquid level and piezo-electric bubble sensors and of loop...Go to contribution page
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Dr Alfredo Tomas Alquezar (Imperial College London)08/04/2014, 17:45LUX-ZEPLIN (LZ) is a next-generation direct dark matter search experiment based on a 7-tonne double-phase xenon detector. The large active xenon target brings many benefits, namely outstanding self-shielding of an inner fiducial volume, but also some practical challenges, in particular the need to provide high voltages to sustain the required electric fields. LZ is undertaking a comprehensive...Go to contribution page
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Mr William Shields (Royal Holloway, University of London)08/04/2014, 17:45Diamond Light Source is a third generation synchrotron facility dedicated to producing radiation of outstanding brightness. Above a threshold current, the electron bunches are susceptible to a phenomenon known as the microbunching instability. The key feature of this instability is the emission of coherent radiation bursts, which have wavelengths of the order of the bunch length and smaller....Go to contribution page
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Mr Joseph O'Connor (University College London)08/04/2014, 17:45Analysis of the complete set of MINOS accelerator and atmospheric data, combining `$\nu_{\mu}$` disappearance and `$\nu_{e}$` appearance, was published in March 2014. This yielded precision measurements of `$\Delta m^{2}_{32}$` and `$sin^{2}(\theta_{23})$` as well as early constraints on `$\delta_{CP}$`. The first results from MINOS+, adding 2 years of atmospheric and 6 months of beam...Go to contribution page
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Jon Harrison (University of Manchester (GB))08/04/2014, 17:45We report on searches for the lepton-flavour violating decay $\tau^-\rightarrow\mu^-\mu^+\mu^-$ and the lepton-flavour and baryon-number violating decays $\tau^-\rightarrow p\mu^-\mu^-$ and $\tau^-\rightarrow\bar{p}\mu^+\mu^-$, carried out using 1.0 inverse femtobarn of proton-proton collision data taken by the LHCb experiment at 7 TeV during 2011. No evidence has been found for any signal,...Go to contribution page
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Thomas Olivier Ravenscroft (University of Glasgow (GB))08/04/2014, 17:45Presented is a method to improve the b-jet energy resolution with the task of increasing the signal sensitivity in searches decaying to a b, anti-b quark pair in the final state. The machinery has been tested using Monte Carlo simulated samples in the process $WH \rightarrow l\nu bb$. The method trains a function through regression applying a correction factor to bring the reconstructed jet...Go to contribution page
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Dr Paolo Beltrame (University of Edinburgh)08/04/2014, 18:00Whilst Weakly Interactive Massive Particles (WIMPs) remain the favoured candidates for dark matter, recent LHC results significantly constrain the available parameter space for several models, including supersymmetric neutralinos. Amongst alternative explanations for the astrophysical evidence of dark matter, axions – more specifically the so-called ‘invisible’ axions and axion-like-particles...Go to contribution page
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Rebecca Charlotte Lane (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 18:00A search for the standard model Higgs boson decaying into a pair of tau leptons is presented, using data recorded by the CMS experiment in 2011 and 2012. The analysis includes all 6 possible final states of the two taus, each of which decays either hadronically or leptonically into an electron or muon. An excess of events over the expected contribution from backgrounds is observed,...Go to contribution page
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Dr Peter Millington (University of Manchester and IPPP, Durham University)08/04/2014, 18:00In arXiv: 1312.3871, we introduce a way to compute transition amplitudes in quantum field theory for scatterings between sources and detectors, that is scatterings over finite space-time domains. Our amplitudes are manifestly causal, by which we mean that the source and detector are always linked by a connected chain of retarded propagators. We illustrate how these amplitudes may be obtained...Go to contribution page
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Scott Mandry (University College London, Max-Planck-Institut für Physik)08/04/2014, 18:00
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Nick Ryder (University of Oxford (GB))08/04/2014, 18:00Oscillation to sterile neutrinos is considered as a possible explanation for the reactor and Gallium neutrino anomalies, which both measured a deficit of neutrinos at short distances from the respective sources. The SoLid experiment will test this hypothesis by measuring neutrino energy spectra between 6-8 m from a reactor core and looking for distortions in the spectra at different distances...Go to contribution page
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Mr Christian Thomay (University of Bristol)08/04/2014, 18:15We present a novel approach to the detection of special nuclear material using cosmic rays. Muon Scattering Tomography (MST) is a method for using cosmic muons to scan cargo con- tainers and vehicles for special nuclear material. Cosmic muons are abundant, highly penetrating, not harmful for organic tissue, cannot be screened against, and can easily be detected, which makes them highly suited...Go to contribution page
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Sam Telfer (The University of Sheffield)08/04/2014, 18:15
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João Pela (Imperial College Sci., Tech. & Med. (GB))08/04/2014, 18:15All measurements of the 125 GeV boson to date indicate compatibility with a SM Higgs boson, but the associated uncertainties are large, and the possibility for non-SM properties remains. In addition, although additional SM-like Higgs bosons have been excluded over a wide mass range, additional Higgs bosons with exotic decay modes remains a possibility, and are predicted by many models....Go to contribution page
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Mr Michele Re Fiorentin (University of Southampton)08/04/2014, 18:15I shall briefly review the main aspects of leptogenesis, describing both the unflavoured and the flavoured versions of the $N_2$-dominated scenario. A study of the success rates of both classes of models has been carried out and I will comment on that, as well as on the incidence of corrective effects to the simplest scenario. I will then focus on the flavoured case and consider the conditions...Go to contribution page
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Prof. Geoff Hall (Imperial College London)09/04/2014, 08:30Detectors and Accelerators, Near and Far FutureOver the next decade a series of upgrades to both the LHC machine and the experiments which operate at the LHC will be carried out. Some of them are already under way. A brief summary will be given of the motivations for detector upgrades, with the accelerator schedule as it is currently foreseen, and a short review of the major elements of the upgrade plans for the four LHC experiments,...Go to contribution page
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Dr Frank Zimmermann (CERN)09/04/2014, 08:55Detectors and Accelerators, Near and Far FutureOptions for the next high-energy electron-positron collider are reviewed, by comparing a linear-collider design - the ILC - with proposed circular collider Higgs factories such as FCC-ee/TLEP. This presentation sketches relative construction costs, some key intrinsic features of circular and linear colliders, issues related to electrical power consumption, interaction-point spot sizes,...Go to contribution page
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Dr Morgan Wascko09/04/2014, 09:25The Neutrino SectorThe next generation of accelerator neutrino oscillation experiments will have significant discovery potential for CP violation in the lepton sector. I will review the physics prospects of these experiments, with emphasis on the UK's role in them.Go to contribution page
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Prof. Sheila Rowan09/04/2014, 09:55Particle Astrophysics, Current and FutureThis talk will cover the status of activities for the construction and commissioning of the imminent generation of the gravitational GW detectors due to start first science runs next year. It will focus on the status of and plans for the Advanced LIGO observatories (in Hanford Washington, and Livingston Louisiana, USA) and Advanced Virgo (near Cascina, Italy), and their operation in the...Go to contribution page
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Prof. Silvia Pascoli09/04/2014, 11:00The Neutrino SectorWith the discovery of neutrino oscillations, the existence neutrino masses have been established pointing towards new Physics beyond the Standard Model. New compelling questions are open for the future: is lepton number conserved? Is there CP-violation? Where does the observed leptonic flavour structure come from? After a very brief overview of the related phenomenological issues, I will...Go to contribution page
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Prof. John March-Russell09/04/2014, 11:30Flavour Physics and Beyond
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Dr Vladimir Shiltsev09/04/2014, 12:00Detectors and Accelerators, Near and Far FutureParticle colliders for high-energy physics have been in the forefront of scientific discoveries for more than half a century. The accelerator technology of the colliders has progressed immensely, while the beam energy, luminosity, facility size, and cost have grown by several orders of magnitude. The method of colliding beams has not fully exhausted its potential but has slowed down...Go to contribution page
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Prof. John Womersley (STFC)09/04/2014, 14:00
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Prof. Matt Griffin09/04/2014, 14:30
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09/04/2014, 14:45
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Prof. Tatsuya Nakada (Ecole Polytechnique Federale de Lausanne (CH))09/04/2014, 16:00
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Prof. Alison Davenport, Dave Wark (RAL / Imperial College London), Prof. Grahame Blair (STFC), Prof. John Womersley (STFC), Prof. Philip Burrows (Oxford University), Prof. Tatsuya Nakada (Ecole Polytechnique Federale de Lausanne (CH))09/04/2014, 16:25
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Chris Quigg (Fermi National Accelerator Lab. (US))The Energy Frontier Programmeplenary talkI will summarize the theoretical context for the search for the avatar of electroweak symmetry breaking, review what we have learned about $H(125)$, and outline what we need to learn about the new particle. I will describe some of the questions raised and opportunities opened by the discovery of $H(125)$, and how they influence our thinking about future accelerators. Finally, I will try to...Go to contribution page
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Calum Michael Macdonald (University of Sheffield (GB))Poster SessionposterThis poster presents the current status of a search for direct production of sbottom and stop scalar quarks with a 50% branching ratio for sbottom or stop decays into neutralinos or charginos. In this search the mass difference between the lightest chargino and lightest neutralino is assumed to be small. Presented here is the current state of the analysis of final states consisting of 2...Go to contribution page
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Mr Nathan Woollett (Lancaster University)Poster SessionposterCurrently there are a number of ‘Light Shining Through a Wall’(LSW) experiments taking place to search for weakly-interacting sub-eV particles(WISPs). The hidden sector photon(HSP) is an example of a WISP which, if massive, could be detected though kinetic mixing with the Standard Model photon. As HSPs do not couple electrically, they can be searched for using an LSW experiment. For HSP rest...Go to contribution page
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Mr Thomas Warburton (University of Sheffield)The Neutrino SectorposterCosmogenic background for a 10 kton liquid Argon time projection chamber (LAr-TPC) surface detector for LBNE is simulated. It is found that through the use of effective cuts a detector would be able to observe neutrino oscillation. The effectiveness of these cuts is hoped to be shown through analysis of a 35 ton prototype that takes data in early 2015.Go to contribution page
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Dr James Nikkel (Royal Holloway University of London)Particle Astrophysics, Current and Futureplenary talkPhysicists are still looking for what makes up most of our galaxy, and while there may be some hints, dark matter still has not been conclusively observed in the lab. I will present the current status of direct dark matter detection and the direction in which this research is headed.Go to contribution page
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Dr Clark Griffith (University of Sussex)Flavour Physics and Beyondplenary talkMeasurement of a non-zero permanent electric dipole moment (EDM) would be clear evidence of a new source of CP violation outside of the quark mixing CKM matrix, and would be a possible signature of Supersymmetry. I will give an overview of current EDM experiments, including searches for atomic EDMs, recent improvements on the electron EDM upper bound measured in polar molecules, and the...Go to contribution page
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Geoff Hall (Imperial College Sci., Tech. & Med. (GB))Detectors and Accelerators, Near and Far Futureplenary talkOver the next decade a series of upgrades to both the LHC machine and the experiments which operate at the LHC will be carried out. Some of them are already under way. A brief summary will be given of the motivations for detector upgrades, with the accelerator schedule as it is currently foreseen, and a short review of the major elements of the upgrade plans for the four LHC experiments,...Go to contribution page
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Mr Matthew Thiesse (University of Sheffield)Poster SessionposterThe Long-Baseline Neutrino Experiment 35-ton prototype detector was built to evaluate and demonstrate liquid argon time projection chamber design elements specific to the full-scale LBNE far detector, such as modular anode plane assembly elements and membrane cryostat technologies. The work presented here relates to several areas of liquid argon detector R&D involving argon purity and high...Go to contribution page
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Helen O'Keeffe (L)The Neutrino Sectorplenary talkIn the last decade, neutrino experiments have provided overwhelming evidence for physics beyond the Standard Model. In this talk I will introduce the theory of neutrino oscillations and discuss current long-baseline neutrino oscillation experiments. Recent results from the T2K and MINOS experiments and prospects for the current generation of experiments will be presented.Go to contribution page
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Mr Michael Wallbank (University of Sheffield)Poster SessionposterThe ND280 uses different sub-detectors in an attempt to reconstruct particle tracks as accurately as possible for analysis and in order to understand the neutrino beam structure before oscillation occurs. Integral to this process are the Electromagnetic Calorimeters (ECals), used for the reconstruction of neutral particles and the identification of charged particles. Some analyses, such as...Go to contribution page
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Hilal Kucuk (University of London (GB))Poster SessionposterJets are defined choosing the anti-kt algorithm with two radius parameters of 0.4 and 0.6. The inclusive double-differential cross section measurement at $\sqrt{s}=$8 TeV at 2012 is performed as a function of jet transverse momentum, in bins of jet rapidity. The data sample with no pile-up has been collected on low mu run for detector calibration and “clean” physics studies. Additionally, it...Go to contribution page
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Mr David Woodward (The University of Sheffield)Poster SessionposterMuon transport simulations have been performed in Geant4 to test the sensitivity of muon tomography for monitoring carbon storage. An accurate geological model of the overburden above the Boulby mine has been used and CO2 injection is simulated by changing the bulk density of a volume of rock. The change in muon flux through a 1000 m^2 detector at a depth of 776 m after CO2 injection is...Go to contribution page
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Mr Anthony Ezeribe (University of Sheffield)Poster SessionposterRadon Progeny Recoils (RPRs) have been identified as a major source of background emanating from the vessel in DRIFT dark matter experiment. We present our R&D work towards developing a new data acquisition system with low radon prone materials at reduced cost for the new generations of the detector, DRIFT IIe and DRIFT III due for installation by June 2014 and 2020 respectively. A low radon...Go to contribution page
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Jeff Hartnell (University of Sussex)The Neutrino Sectorplenary talkNeutrinos are the second most abundant particle in the universe and yet one of the least understood. Their fundamental nature, whether they are their own antiparticle, is not yet known and the heaviest neutrino has a mass that we currently only known to within a range that spans about two orders of magnitude. In this talk I will review single beta decay experiments, which give us a model...Go to contribution page
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Ryan Nichol (UCL)Particle Astrophysics, Current and Futureplenary talkNeutrino particle astrophysics is a frontier field at the crossroads of particle physics and astrophysics. Given the low fluxes of astrophysical neutrinos, gigantic detection volumes are necessary to detect the weakly interacting particles. The past twelve months have been an exciting time in the field on neutrino particle astrophysics, with the IceCube experiment claiming the first evidence...Go to contribution page
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Ms Talitha Bromwich (University Of Sussex)Particle Astrophysics, Current and FutureposterDEAP-3600 is a liquid Argon-based dark matter detection experiment which utilises the organic crystalline solid 1,1,4,4-tetraphenyl-1,3-butadiene (TPB) to absorb scintillated 128nm UV light and re-emit it as 440nm visible light. Here I present the results of TPB evaporations and techniques for analysing the topography of the TPB layer using an atomic force microscope, preliminary tests on...Go to contribution page
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TBADetectors and Accelerators, Near and Far Future
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Craig Anthony Sawyer (University of Oxford (GB))Poster Sessionposter2012 saw unprecedented levels of pile-up (multiple interactions per bunch crossing) in collisions at the LHC. This presented a challenging environment in which to calibrate jets for use in both precision analyses and new physics searches. This poster details the jet-area-based pile-up suppression techniques that were developed by ATLAS for 2012 data taking and form the first stage in the jet...Go to contribution page
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Anthony Challinor (University of Cambridge)Particle Astrophysics, Current and Futureplenary talkI review the main cosmology results from the 2013 Planck release. I will also discuss some developments since the original submission of the papers, and put the Planck results in the context of more recent results from the BICEP2 experiment.Go to contribution page
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Dr Evgueni Goudzovski (University of Birmingham)Flavour Physics and Beyondplenary talkObservation of charged lepton flavour violation (CLFV) would provide a clear signal for physics beyond the Standard Model. Selected recent experimental results and near-term prospects for the searches for CLFV processes are discussed. The processes considered include $\mu\to e$ conversion, $\mu\to e\gamma$ decay and lepton flavour violating decays of the charged kaons.Go to contribution page
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Prof. Dave Wark (RAL / Imperial College London)
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Emily Grace (R)Poster SessionposterThe speed and path traveled of light in vacuum is well known and easy to predict. Once light travels though a medium, the speed changes and the light becomes likely to scatter. The speed change and scattering is directly related to the wavelength of the light and thermodynamical properties of the medium in which it travels. This is of particular interest to those using argon, xenon, or krypton...Go to contribution page
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Dr Frank Zimmermann (CERN)Detectors and Accelerators, Near and Far Futureplenary talkOptions for the next high-energy electron-positron collider are reviewed, by comparing a linear-collider design - the ILC - with proposed circular collider Higgs factories such as FCC-ee/TLEP. This presentation sketches relative construction costs, some key intrinsic features of circular and linear colliders, issues related to electrical power consumption, interaction-point spot sizes,...Go to contribution page
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Henning Flacher (University of Bristol (GB))The Energy Frontier Programmeplenary talkThe search for physics beyond the Standard Model is a priority in the physics programme of the ATLAS and CMS collaborations. These searches cover a wide variety of experimental signatures and proposed models, ranging from, e.g., supersymmetry to heavy gauge bosons, extra dimensions and dark matter. In this talk the latest results obtained with up to 20/fb of data collected at 8 TeV...Go to contribution page
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Bill Murray (University of Warwick (GB))The Energy Frontier Programmeplenary talkThe LHC Higgs programme has been spectacularly successful in discovering what has been variously called 'A new boson', 'a Higgs-like boson' and 'a Higgs boson' even while the machine was running well below design energy. But what do we really know about this particle? Why don't we just call it 'The Higgs boson', and will we ever do so? And what can it tell us about the remaining mysteries such...Go to contribution page
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Mr Samuel Timothy Spencer (University of Durham)Poster SessionposterArtificial neural networks, such as multi-layer perceptrons, are computer programs designed to mimic the pattern recognition performed by organic brains. They have many uses in particle physics and astronomy, where a small signal is swamped by a large (but identifiable background). In this poster we will present a novel implementation of a neural net to detect and classify sources with both...Go to contribution page
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Mr Andrew Scarff (University of Sheffield)Poster SessionposterThis work is to progress with R&D on using Thick GEMs (ThGEM) in a gaseous time projection chamber (TPC) for directional particle detection. It has the potential to be used for low mass WIMP detection with a major area of work being to focus electrons to smaller electrodes to lower the costs in any scale up that may be required.Go to contribution page
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Javier Alberto Murillo Quijada (University of Birmingham (GB))Poster SessionposterA preliminary study of the top-quark width ($\Gamma_{top}$) is performed using the ATLAS collaboration official Monte Carlo (MC) samples corresponding to proton-proton collisions with centre of mass energy of $\sqrt{s}$ = 8 TeV and scaled to integrated luminosity $\int Ldt$ = 20.3$fb^{-1}$. Templates with different values of $\Gamma_{top}$ are generated assuming an underlying truth top mass...Go to contribution page
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