Themis Bowcock
(CERN)
08/04/2013, 13:30
Dr
Veronique Boisvert
(University of London (GB))
08/04/2013, 13:45
Plenary - PP Experiment, LHC GPDs
The LHC has concluded its successful first run with unprecedented luminosity, giving the detectors a large sample of data to perform detailed measurements. A review of recent standard model results from the LHC is presented, giving an emphasis on results from ATLAS and CMS about QCD,diboson and top quark physics.
Monica D'Onofrio
(University of Liverpool (GB))
08/04/2013, 14:15
Plenary - PP Experiment, LHC GPDs
The LHC's first run came to an end in February after three years of extraordinary performance. Major advances in physics have been achieved, including the discovery of a new Higgs-like
particle. An extensive program of searches for new physics phenomena beyond the Standard Model (BSM) is pursued by the major experiments using the full dataset delivered in 2012.
In this talk, the most...
Monica Vazquez Acosta
(Imperial College London (UK))
08/04/2013, 14:45
Plenary - PP Experiment, LHC GPDs
The latest results of the recently discovered Higgs-like boson from the ATLAS and CMS experiments will be reviewed. Measurements of the properties of this new particle, including the mass will be presented. Searches for Higgs-like bosons in models beyond the Standard Model will also be discussed.
Tim Gershon
(Univ. of Warwick)
08/04/2013, 16:00
Plenary - PP Experimental, Flavour, Neutrinos, Dark Matter
A brief review of the status of quark flavour physics, with emphasis on recent new results, is presented.
Prof.
Robert Wilson
(Colorado State University)
08/04/2013, 16:30
Plenary - PP Experimental, Flavour, Neutrinos, Dark Matter
Results from the last decade of experiments have established that neutrinos are remarkably different than they appear in the Standard Model of particle physics: they have nonzero mass, flavor mix with one another and oscillate between generations. These features are rare indications of physics beyond the Standard Model so new theoretical and experimental work is needed to understand neutrino...
Jeanne Wilson
(Queen Mary, University of London)
08/04/2013, 17:05
Plenary - PP Experimental, Flavour, Neutrinos, Dark Matter
In this talk I will discuss some current neutrino experiments that look at non-accelerator neutrinos sources - solar, reactor, geo and supernovae - using SNO+ as the main example of experimental techniques. I discuss first how these experiments help us probe fundamental neutrino properties, and secondly, what we can learn about the sources from measurements of the neutrinos they produce.
Dr
Justin Evans
(University of Manchester (UK))
08/04/2013, 17:25
Plenary - PP Experimental, Flavour, Neutrinos, Dark Matter
The question of whether the neutrino is its own antiparticle, and the value of the absolute neutrino mass, are two of the most important unknowns in particle physics. A number of experiments are searching for neutrinoless double beta decay, in order to address these questions. The last year has marked the beginning of a new era for the field of neutrinoless double beta decay, with new results...
Dr
Chamkaur Ghag
(University College London)
08/04/2013, 17:45
Plenary - PP Experimental, Flavour, Neutrinos, Dark Matter
Precision cosmology and detailed analysis of a wide variety of astronomical phenomena suggest that dark matter constitutes some 85% of the matter content of the Universe. While the evidence for its bulk existence is strong, an understanding of its particle nature remains elusive, and the requirement of an additional particle species to explain the dark matter provides compelling evidence for...
Rebecca Chislett
09/04/2013, 08:45
Parallel Track 2
This talk will discuss the search for a boosted hadronically decaying W/Z boson reconstructed in a single jet using the ATLAS experiment at the LHC. The signal is identified using jet shapes calculated from the jet in its centre of mass frame and from this a cross section can be extracted. The peak is then used to investigate the effect of various jet grooming and substructure techniques,...
Dr
Melissa George
(Imperial College)
09/04/2013, 08:45
Parallel Track 4
Muon ionization cooling is the only solution to prepare the high brilliance muon beams that are necessary for a Neutrino Factory or Muon Collider. The International Muon Ionization Cooling Experiment (MICE) is a collaboration of over 70 scientists from 9 countries and is under development at the Rutherford Appleton Laboratory. MICE aims to be the first experiment to observe the ionizaion...
Myfanwy Liles
(University of Liverpool (GB))
09/04/2013, 08:45
Parallel Track 3
The forward backward asymmetry of the decay qq(bar)->Z/γ*->mu+mu- arises from the interference of vector and axial vector couplings of the Z and γ* to fermions. As such, the measurement of AFB is sensitive to the couplings of the boson to quarks and to muons. This measurement is also sensitive to the weak mixing angle sin2θW, an input to the Standard Model. At the LHC the observed asymmetry is...
Luke Lambourne
(University College London (UK))
09/04/2013, 08:45
Parallel Track 1
The observation of a Z boson decaying to b quarks at a hadron collider is a difficult measurement to make due to the large QCD background. This talk will show work to develop methods to increase this low signal to background ratio, as part of the ongoing effort to measure the Z to bb signal with the ATLAS detector.
Jack Robert Goddard
(University of London (GB))
09/04/2013, 08:57
Parallel Track 3
The low mass Drell-Yan differential cross-section has been measured as a function of the invariant mass of the lepton pair using the ATLAS Experiment at CERN. The measurement has been made using both the electron and muon channels using data recorded in 2011 in an invariant mass range of 26 < M < 66 GeV. The muon channel is also used with 2010 data to allow the invariant mass range to be...
Gregory James Fletcher
(University of London (GB))
09/04/2013, 08:57
Parallel Track 1
The current status of the R+Jets ratio measurement of W to Z production cross sections in association with jets with the ATLAS detector, using 7TeV pp collisions of the 2011 ATLAS dataset. Cross section ratios for the vector bosons decaying to electron and muons are measured for jets with transverse momentum PT > 30GeV and jet rapidity |y| < 4.4 and compared to predictions from different...
Rhorry Gauld
(University of Oxford)
09/04/2013, 08:57
Parallel Track 2
Top quark production at the LHC is discussed. Studies of theoretical uncertainties in fixed order calculation and in the matching to parton showers will be presented. The focus of the talk will be to summarise the sensitivity of LHCb to measuring single-top and pair-production partial cross sections and their associated production asymmetries.
Richard David Mudd
(University of Birmingham (GB))
09/04/2013, 08:57
Parallel Track 4
Updated search results and property measurements are presented in the H->ZZ->4l decay channel using proton-proton collision data collected by the ATLAS detector during the 2011 and 2012 LHC runs.
An excess of events consistent with the production of a Standard Model Higgs Boson is observed at a mass of around 125 GeV.
The couplings of the new particle are probed for the first time with this...
Kiran Daniel Joshi
(University of Manchester (GB))
09/04/2013, 09:09
Parallel Track 1
The ATLAS measurement of ttbar production with a veto on additional central jet activity is presented, the results of which were used to constrain the size of QCD modelling uncertainties in ttbar events.
Ongoing work on alternative prescriptions for estimating such uncertainties will also be discussed.
Sergey Senkin
(University of Bristol (GB))
09/04/2013, 09:09
Parallel Track 2
A differential cross section measurement of top quark pair production with respect to missing transverse energy (MET) is presented using 5.1 fb-1 of data collected with the CMS detector at the LHC at a centre of mass energy of 7 TeV. The analysis selects events with a single isolated high energy electron or muon, which is assumed to come from one of the W bosons produced in the decay of a top...
Andrew Daniells
(University of Birmingham (GB))
09/04/2013, 09:09
Parallel Track 4
Following the recent discovery, the ATLAS collaboration is performing detailed studies on the properties of the new boson. An important ingredient for these studies is the signal selection efficiency, which is studied using a Tag-and-Probe method applied on 20.7 fb^{-1} of Z->mumu and Z->ee data recorded by the ATLAS detector at \sqrt{s}=8TeV. Also, a technique to improve the signal mass...
Karoline Elfriede Selbach
(University of Edinburgh (GB))
09/04/2013, 09:09
Parallel Track 3
The latest search for the Standard Model Higgs boson is presented using the ATLAS experiment at the Large Hadron Collider. The channel analysed is the H->ZZ->4l channel where l denotes to muons and electrons. The results are based on 4.6 fb-1 data taken in 2011 at √s=7TeV and 13.0 fb-1 data taken in 2012 at √s=8TeV. The main analysis uses smoothed signal and background shapes from simulation....
Ben Harry Smart
(University of Edinburgh (GB))
09/04/2013, 09:21
Parallel Track 2
A new boson has been observed decaying to two photons and to four leptons. In order to determine whether this new particle is the long sought-after Higgs boson, it should be determined whether it also decays into b quark pairs. An overview of the search with the ATLAS Detector for a Higgs boson decaying into two b quarks, produced in association with a vector boson, will be presented. A look...
Andrew Gilbert
(Imperial College Sci., Tech. & Med. (GB))
09/04/2013, 09:21
Parallel Track 1
This talk covers the search for the standard-model Higgs boson decaying to tau leptons using the CMS detector at the LHC. The most recent results are presented, using 4.9 fb^-1 of data taken at 7 TeV during 2011 and 19.4 fb^-1 at 8 TeV in 2012. The search utilises five final states, coming from the different decay modes of the tau, and a 95% CL upper limit is calculated by analysing the...
Ms
Chiara Debenedetti
(The University of Edinburgh)
09/04/2013, 09:21
Parallel Track 3
We present the latest published results on the search for a
Standard Model Higgs boson produced in association with a W or a Z boson
and decaying to bb with the ATLAS experiment.
No significant excess is
observed in the data collected : 4.7fb-1 at sqrt(s)=7TeV and 13fb-1 in
sqrt(s)=8TeV.
The fit procedure will be detailed, with particular emphasis on the validation method employed.
As a...
Nicola Anne Skidmore
(STFC - Science & Technology Facilities Council (GB))
09/04/2013, 09:21
Parallel Track 4
An analysis to measure the parameter R_k=BF(B^+->K^+\mu^+\mu^-)/BF(B^+->K^+e^+e^-)in the dilepton invariant mass squared region 1<q^2<6 GeV^2/c^4 using data collected by LHCb in 2011 and 2012 is presented. R_k is a probe of New Physics providing model-independent constraints on the Wilson Coefficients C_s and C_p complementary to those from the B(B_s->\mu^+\mu^-) measurement from LHCb in 2012....
Patrick Haworth Owen
(Imperial College Sci., Tech. & Med. (GB))
09/04/2013, 09:33
Parallel Track 4
Using the large heavy flavour cross section at the LHC, the Standard Model can be probed more precisely than ever before. Results comparing the rates of neutral and charged rare B decays using 1.0 fb-1 of luminosity collected at the LHCb detector are presented. This so-called "isospin asymmetry" is expected to very close to zero in the SM, however results show a significant deviation from this...
Tomas Pilar
(University of Warwick (GB))
09/04/2013, 09:33
Parallel Track 2
A model-independent technique can be used to determine the mixing and CP violation parameters in the charm sector using D0->Kshh decays. The Dalitz plot is binned so that no description of the amplitude variation over the phase space is necessary. The analysis is sensitive to the relative sign of the mixing parameters and with additional data will achieve good sensitivity to CP violation...
53.
Model dependent measurement of charm mixing and CPV parameters in prompt D0->KShh decays at LHCb
Nick Torr
(University of Oxford (GB))
09/04/2013, 09:33
Parallel Track 3
We present a model dependent technique for measuring the charm mixing and CPV parameters in prompt D0->KShh decays using 1fb-1 of data collected by LHCb detector during 2011. The complete analysis uses two techniques to extract the mixing parameters; a model dependent and a model independent, as one provides a systematic cross check of the other. This analysis is unique in its ability to...
Edward Thomas Greening
(University of Oxford)
09/04/2013, 09:33
Parallel Track 1
This talk introduces recent D meson decay results published by the LHCb experiment.
Such decays are unique in that unlike B and K decays, they provide information about the coupling of up-type quarks. These have the potential to be affected differently to down-type quarks by new physics.
Sean Benson
(University of Edinburgh (GB))
09/04/2013, 09:45
Parallel Track 4
A first measurement of the time-dependent CP-violating asymmetry in hadronic
B_s → φφ decays is presented. In this decay channel, the CP -violating weak phase
arises due to CP violation in the interference between B_s − bar{B}_s mixing and the
b → s bar{s} s hadronic penguin decay amplitude. Using a sample of 1.0 fb^−1 of pp
collision data collected at a centre-of mass energy of sqrt{s}=7...
Edmund Smith
(University of Oxford (GB))
09/04/2013, 09:45
Parallel Track 2
The decay B0 -> D K*0 and the charge conjugate mode are studied using 1.0fb-1 of pp collision data collected by the LHCb experiment at sqrt(s) = 7TeV in 2011.
The CP asymmetry between the B0 and B0bar decay rates, is found to be A_d_KK = -0.45 +- 0.23 +- 0.02, where the first uncertainty is statistical and the second is systematic.
The ratio of the B-flavour averaged decay rates in D...
Matthew Michael Reid
(University of Warwick)
09/04/2013, 09:45
Parallel Track 1
The LHCb dataset provides the potential to significantly improve the knowledge of $B^0_{(s)} \to J/\psi K_S^0 h^+ h^{(\prime)-}$ decays. Exotic charmonia states have been observed (or claimed), produced in B decays together with a kaon, and decaying to $J/\psi h^+ h^{(\prime)-}$: the $X(3872)$ decaying to $J/\psi \pi^{+} \pi^{-}$, and the $X(4140)$ decaying to $J/\psi \phi$. These could be...
Karim Massri
(University of Birmingham (GB))
09/04/2013, 09:45
Parallel Track 3
The NA62 Experiment aims to measure the branching ratio of the ultra-rare kaon decay $K^+ \rightarrow \pi^+ \nu \bar{\nu}$ with 10\% precision, collecting $\sim 100$ events in 2 years of data taking, starting in 2014. Assuming the value of the branching ratio as predicted by the SM ($BR(K^+ \rightarrow \pi^+ \nu \bar{\nu}) = (8.5\pm 0.7) \times 10^{-11}$), to collect enough statistics a...
Thomas Teubner
(University of Liverpool)
09/04/2013, 10:30
Plenary - Theory and Future
Precision experiments with leptons provide powerful tests of quantum
field theory and the Standard Model and probe new physics in a way
which is complementary to searches at the high-energy frontier.
I will discuss the status of and future prospects for the anomalous
magnetic moment of the muon, lepton flavour violation and electric
dipole moments.
Prof.
Edmund Copeland
(University of Nottingham)
09/04/2013, 11:00
Ben Gripaios
(University of Cambridge (GB))
09/04/2013, 11:30
Plenary - Theory and Future
I will discuss, from a theorist's perspective, future prospects for HEP.
Tatsuya Nakada
(Ecole Polytechnique Federale de Lausanne (CH))
09/04/2013, 12:00
Andrew Stephen Chisholm
(University of Birmingham (GB))
09/04/2013, 13:30
Parallel Track 4
Many years on from the discovery of the J/psi, our theoretical understanding of quarkonium production at hadron experiments is still far from satisfactory. The large data samples gathered at the LHC during 2010-2012, in conjunction with recent advances in theory, represent a fantastic opportunity for the LHC experiments to contribute to the improvement of this situation. The P-wave quarkonium...
Alex Pearce
(STFC - Science & Technology Facilities Council (GB))
09/04/2013, 13:30
Parallel Track 3
An analysis to measure delta ACP in Lambda_c baryons originating from semileptonic Lambda_b decays using 2011 LHCb data is presented.
The CP violation measurement delta ACP in this system is defined as
delta ACP = ACP(Lambda_c -> pK+K-) - ACP(Lambda_c -> ppi+pi-).
All production and detection asymmetries cancel to first order, the remaining contribution being direct CP violation.
The...
Andrew David Cook
(University of Bristol (GB))
09/04/2013, 13:30
Parallel Track 2
The production of Jpsi pairs in proton-proton collisions at a centre of mass energy of 7 TeV has been studied using data collected with the LHCb detector in 2011
William James Barter
(University of Cambridge (GB))
09/04/2013, 13:30
Parallel Track 1
Measurements of Electroweak Gauge Boson Production at LHCb probe a previously poorly explored low x region of phase space. Such measurements provide unique constraints on PDFs, as well as providing tests of the Standard Model in regions where theoretical predictions have not been tuned. Results from LHCb are complementary to those made at the ATLAS and CMS experiments. This talk will cover...
Stephen Ogilvy
(University of Glasgow (GB))
09/04/2013, 13:42
Parallel Track 4
An analysis to measure the ratios of the $\Lambda_{c}^{+} \to p^{+} h^{-} h^{+}$, {$h = K, \pi$} $\mathcal{BF}s$ using 2011 LHCb data is presented. Two sources of $\Lambda_{c}^{+}$ are used, those produced promptly and those produced in semileptonic $\Lambda_{b}^{0} \to \Lambda_{c}^{+} \mu^{-} \bar{\nu}$ decays. The analysis includes a search for the hitherto unobserved...
Jack Benton
(University of Bristol (GB))
09/04/2013, 13:42
Parallel Track 1
Here we present a systematic amplitude analysis of the decay from D0 and D0-bar mesons to four charged pions, using the full dataset from Cleo-C. A genetic algorithm was used to refine the amplitude model while fitting to five dimensional Dalitz plots. While the model is of interest in its own right, the analysis also allows for the measurement of phase differences, such as from the CP...
Gregory Max Ciezarek
(Imperial College Sci., Tech. & Med. (GB))
09/04/2013, 13:42
Parallel Track 3
The flavour changing neutral current processes b to (s,d) mu mu are highly suppressed in the standard model,
and are sensitive to contributions from new particles. The first observation of B+ to pi mu mu is presented,
the first b to d mu mu mode to be measured. Minimal flavour violation (MFV) is the hypothesis that the only source of flavour
violation is the Yukawa couplings of the...
Dean Michael Lambert
(University of Edinburgh (GB))
09/04/2013, 13:42
Parallel Track 2
B-meson decays involving loop processes allow to search for the indirect effects of new physics beyond the Standard Model. One such channel is the decay B0->phiK*. The worlds largest sample of this decay has been collected by the LHCb experiment. The experimental observables that can be studied in this channel will be discussed together with the experimental challenges. First results based on...
Thomas Michael Bird
(University of Manchester (GB))
09/04/2013, 13:54
Parallel Track 1
The mass differences ∆ms and ∆md are extracted from the full 2011 LHCb dataset, using the decays B(s)→D(s) μ ν, where D(s)→K K π. Measured B momentum is reduced due to missing particles. This is corrected for using a simulation-based statistical correction, known as the k-factor. A novel resolution model, also taken from the simulation, is used to fit the proper time distributions and...
Josh McFayden
(University of Sheffield (GB))
09/04/2013, 13:54
Parallel Track 4
Searches for supersymmetric 3rd generation squarks at the LHC are well motivated by naturalness arguments. The exclusion of TeV scale first and generation squarks and gluinos by previous LHC searches makes these searches particularly interesting.
I will present the current status of the top squark searches in ATLAS including the most recent results with 8 TeV data. The focus will be on the...
Sarah Louise Williams
(University of Cambridge (GB))
09/04/2013, 13:54
Parallel Track 3
This talk focuses on the search for weakly produced Supersymmetric particles in the ATLAS experiment at the LHC using events with exactly two reconstructed leptons. This analysis was first performed using the 2011 dataset and an extension based on 2012 data is underway. This talk will discuss the motivations for the search, outline the signal processes of interest and the signal regions...
Stewart Martin-Haugh
(University of Sussex (GB))
09/04/2013, 13:54
Parallel Track 2
The results of a dedicated search for supersymmetry in events with exactly three leptons and large missing transverse energy at the ATLAS detector are presented. In the absence of any deviation from Standard Model predictions, limits are placed on several supersymmetric scenarios.
Joel Alexander Klinger
(University of Manchester (GB))
09/04/2013, 14:06
Parallel Track 1
A search for a heavy Majorana neutrino decaying into a W boson and a muon has been performed using the ATLAS detector at the LHC. The search is performed using events with two same-sign muons, at least two jets and low missing transverse momentum. The data used in the search were collected in pp collisions at √s = 7 TeV in 2011 and correspond to an integrated luminosity of 4.7 fb−1. No excess...
Tom Williams
(University of Bristol (GB))
09/04/2013, 14:06
Parallel Track 4
Through the analysis of data from 7 & 8 TeV centre-of-mass energy pp collisions at the Large Hadron Collider (LHC) in CERN, the LHC experiments have been expanding the frontiers of particle physics into the TeV energy regime. In addition to the discovery of a Higgs-like boson last year, there are many searches for Beyond the Standard Model (BSM) theories at the Compact Muon Solenoid (CMS)...
Liam Duguid
(University of London (GB))
09/04/2013, 14:06
Parallel Track 3
Presented is a search for nonresonant new phenomena, originating from either contact interactions or large extra spatial dimensions, carried out using events with either isolated ee or μμ. These events, produced at the LHC in proton-proton collisions at √s = 7 TeV, were recorded by the ATLAS detector. The data sample, collected throughout 2011, corresponds to an integrated luminosity of 4.9...
Danilo Enoque Ferreira De Lima
(University of Glasgow (GB))
09/04/2013, 14:06
Parallel Track 2
Alternatives to the Standard Model predict new particles which decay into top-antitop pairs and which could be detected in ATLAS. A leptophobic Z' and
Kaluza-Klein gluons from Randall-Sundrum models with extra dimensions were used as benchmark models for the analysis with identical generation parameters as in CDF and D0. The semileptonic decay of the top-antitop system is studied in this...
Emyr John Clement
(University of Bristol (GB))
09/04/2013, 14:18
Parallel Track 2
A search is performed for a heavy resonance decaying to two long-lived massive neutral particles that each decay to dileptons. The process is detected experimentally via a distinct topological signature consisting of a pair of oppositely charged leptons originating at a vertex significantly displaced from the LHC beam spot. This talk will summarise the results of the search conducted on data...
Yan Jie Schnellbach
(University of Liverpool (GB))
09/04/2013, 14:18
Parallel Track 3
Search for new heavy neutral gauge bosons (Z') with dielectron final states with the ATLAS detector in proton-proton collisions with a centre-of-mass energy of 8 TeV.
Andrew Fowlie
(U)
09/04/2013, 14:18
Parallel Track 1
In light of the failed supersymmetry searches at the LHC, with Bayesian statistics, I discuss: Where is supersymmetry?, and, Is the most constrained supersymmetry model still viable? I briefly review recent experimental results – from collider and astroparticle physics - that constrain supersymmetry, and explain how we included such results in a Bayesian analysis of the Constrained Minimal...
Benjamin Still
09/04/2013, 14:18
Parallel Track 4
The T2K neutrino beam is created at J-PARC in the East of Japan and is aimed at Super Kamiokande (Super-K) 2.5° off-axis and 295km to the West. Super-K is a 50kT water Cherenkov detector upgraded in 2006 for use by the T2K experiment as a far detector. In this talk we present the status, data taking efficiency, and candidate events selection for both appearance and disappearance analyses. We...
Jonathan Davies
(UCL)
09/04/2013, 14:30
Parallel Track 4
Ultra-high energy neutrinos from sources outside our solar system provide an opportunity to study particle physics at energies unobtainable at terrestrial accelerators. This weakly interacting messenger can be used to probe the high energy Universe alongside the astro-physical objects and mechanisms that produce them.
The Askaryan Radio Array (ARA) is a new teraton-scale ultra-high energy...
Mr
Peter Sinclair
(Imperial College London)
09/04/2013, 14:30
Parallel Track 3
The T2K experiment is one of a new generation of neutrino physics experiments which is able to probe the structure of neutrino oscillations with unprecedented accuracy. In order to develop the precise measurements that are required to understand this new phenomenon, we need an accurate understanding of how neutrinos interact with conventional matter. My work focuses on developing and testing...
Callum Lister
(University of Warwick)
09/04/2013, 14:30
Parallel Track 2
The muon neutrino beam of the T2K neutrino oscillation experiment contains a small contamination from anti-neutrinos. It is important to measure accurately this flux component since it: (a) forms a background to the oscillation measurements and; (b) gives the opportunity to study the poorly known anti-neutrino cross-section on carbon at neutrino energies of ~1GeV. This talk will outline a...
James Sinclair
(U)
09/04/2013, 14:30
Parallel Track 1
Situated 2 km underground in Sudbury, Northern Ontario, the SNO+ detector consists of an acrylic sphere 12 m in diameter containing 780 tons of target mass, surrounded by approximately 9,500 PMTs. For SNO, this target mass was heavy water, however the change to SNO+ is defined by the change of this target mass to a novel scintillator. With the lower energy threshold, low intrinsic...
Matthew Mottram
(University of Sussex)
09/04/2013, 14:42
Parallel Track 4
SNO+ is a multipurpose neutrino experiment located 2km underground in Sudbury, Canada, which will begin operation this year. The detector consists of 8 kilotonnes of ultra-pure water shielding, with an array of ~9500 PMTs, surrounding a central O(1 kTonne) interaction volume. SNO+ will operate in three distinct phases, with a different material in the interaction volume during each phase:...
Ian Coulter
(O)
09/04/2013, 14:42
Parallel Track 3
The SNO+ experiment, which will begin operations this year, is designed to confront a broad range of physics topics. These include: neutrino-less double beta decay, solar neutrinos, geo-neutrinos, reactor neutrinos, supernova neutrinos and unusual modes of nucleon decay. In order to address these goals, the detector will undergo several phases of operations in which the inner volume will, in...
104.
Leptonic topologies for the study of neutral current single pi0 events in the T2K near detector
Mr
Zachary Williamson
(T2K Oxford)
09/04/2013, 14:42
Parallel Track 2
This presentation outlines additional efforts to use the near detector to measure the cross section for single pi0 production. Such processes are relatively rare in the tracker region and this work will consider additional, less restrictive topologies to increase statistics. Specifically, this work will focus on single pion neutral current interactions where one or both of the decay gammas...
Helen O'Keeffe
(University of Oxford)
09/04/2013, 14:42
Parallel Track 1
Single pi0 production is one of the most significant backgrounds in the T2K nu-e appearance measurement and due to uncertainties in the production cross-section, it is one of the most difficult to constrain. Measurements of neutral current single pion production in the near detector can be extrapolated to the far detector and used to constrain this background. An analysis that uses a specific...
Terry Duboyski
(Queen Mary University London)
09/04/2013, 14:54
Parallel Track 1
To expand upon the T2K ND280 NuMu Tracker analysis we begin to explore currently unaddressed phase-space for use in a CCQE cross-section measurement.
Benjamin Smith
(Imperial College London)
09/04/2013, 14:54
Parallel Track 3
T2K was the first experiment to show evidence for muon neutrinos oscillating into electron neutrinos. This showed that theta_13 --- one of the mixing angles in the PMNS matrix which describes neutrino oscillations --- is non-zero, and 1km-baseline reactor experiments have since precisely measured this parameter. Precision measurements of other neutrino oscillation parameters will arise from...
Thomas Dealtry
(RAL & University of Oxford)
09/04/2013, 14:54
Parallel Track 4
T2K is an off-axis long-baseline neutrino experiment, using the J-PARC muon-neutrino beam to look for muon-neutrino disappearance (to measure $\theta_{23}$ and $\Delta m^2_{32}$) and electron-neutrino appearance (to measure $\theta_{13}$). Super-Kamiokande, a 22.5 kton fiducial water Cerenkov detector located 295 km from the neutrino source, is used as the far detector. I report the result of...
Lee Tomlinson
(University of Manchester (GB))
09/04/2013, 14:54
Parallel Track 2
The presence of large logarithms in QCD corrections to observables spoils the validity of a calculation truncated at finite order and calls for an all-orders approach. The QT (transverse momentum) spectrum of massive lepton pairs, produced in hadron colliders by the Drell-Yan mechanism, has received a great deal of attention in electroweak phenomenology. We present and discuss a...
Ms
Xiaohe Zhang
(University of Oxford)
09/04/2013, 15:06
Parallel Track 4
The EURECA (European Underground Rare Event Calorimeter Array) collaboration aims to construct and operate a cryogenic tonne-scale dark matter detector. The chosen technology is low-temperature calorimeters that combine the detection of a heat signal for precise energy measurement with either ionization or scintillation for efficient event type identification. The aim is to probe WIMP-nucleon...
Dr
Stefan Ohm
(University of Leicester, Leicester, UK)
09/04/2013, 15:06
Parallel Track 2
HESS J1640-465 is one of the most extreme Galactic TeV gamma-ray sources that has been discovered with the High Energy Stereoscopic System (H.E.S.S.). The emission is likely associated to the shell-type supernova remnant (SNR) G338.3-0.0 with an estimated distance of ~10 kpc, making HESS J1640-465 the most luminous Galactic source in the TeV regime. Recent multi-wavelength observations led to...
Peter Millington
(University of Sheffield)
09/04/2013, 15:06
Parallel Track 1
In arXiv:1211.3152, we present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices. The resulting time-dependent diagrammatic perturbation series are free of pinch singularities without the need for quasi-particle approximation or effective resummation of finite widths. Introducing a physically...
Stephen Sadler
(University of Sheffield)
09/04/2013, 15:06
Parallel Track 3
Radon gas is a source of background in the Directional Recoil Information From Tracks (DRIFT) experiment and as such, a major radon reduction effort has taken place over the past several years. Two complimentary techniques for measuring the radon emanation rate in DRIFT will be presented, followed by an overview of the materials screening and replacement effort for the current detector,...
Dr
White Richard
(University of Leicester)
09/04/2013, 16:00
The Cherenkov Telescope Array (CTA, www.cta-observatory.org [www.cta-observatory.org]) is a global (27 nations, 1000 scientists, 150ME) project for gamma-ray astronomy planned for construction in 2014-2020. This high-profile project with ambitious and exciting science and technology is likely to capture the public imagination and the breadth and depth of the CTA science case has made it a key...
Prof.
Jose Jordi
(UPC BarcelonaTECH)
09/04/2013, 16:30
Plenary - APP Experimental
Many stars form binary or multiple systems, with a fraction hosting one or two degenerate objects (white dwarfs and/or neutron stars) in short-period orbits, such that mass transfer episodes onto the degenerate component ensue. This scenario is the framework for a suite of violent stellar events, such as type Ia supernovae (SNIa), classical novae (CNe) or type I X-ray bursts (XRBs).
The...
James Hough
(University of Glasgow)
09/04/2013, 17:00
Plenary - APP Experimental
Gravitational waves – a prediction of Einstein’s General Relativity – are still among the most elusive signals from far out in the Universe. Over the past decade the laser interferometric detectors LIGO, Virgo and GEO 600 have been commissioned and operated at their design or close to design sensitivity. However in keeping with source strength predictions and, as expected, no gravitational...
Michael Gustafsson
09/04/2013, 17:30
Plenary - APP Experimental
Weakly Interacting Massive Particles (WIMPs) are promising dark matter particle candidates that may annihilate or decay into gamma rays detectable by the Fermi Large Area Telescope (Fermi-LAT). The Fermi-LAT has been collecting data for over 4 years, leading to an improved understanding of our gamma-ray sky. The search for a potential dark matter signal in this data is an important task, and...
Mr
Jonathan Harris
(Durham University)
10/04/2013, 08:45
Parallel Track 1
At TeV photon energies the universe has a high optical depth due to the
presence of extragalactic background light (EBL) photons from stars and star-formation which provide a target for pair production. Measuring the amount of absorption in the gamma-ray spectrum from a relatively distant object such as an active galactic nucleus (AGN) reveals information about the level of the EBL, which in...
Kate Dutson
(University of Leicester)
10/04/2013, 08:45
Parallel Track 3
High-energy emission is expected from clusters of galaxies on a range of scales and via several channels, including processes driven by the AGN within the central brightest cluster galaxy (BCG), acceleration of cosmic rays at merger shocks, and the annihilation of dark matter particles. Hard X-ray and radio synchrotron signatures evidence the presence of non-thermal particles inside the...
Ms
Nicola McConkey
(University of Warwick)
10/04/2013, 08:45
Parallel Track 2
Results are presented from a small-scale experiment to investigate the use of room temperature organic liquid scintillators as the active medium for a time projection chamber (TPC).
The optical properties of liquid scintillators have long been known, but their ability to transport charge has remained, until now, largely untested. The idea of using room temperature liquids as an active...
Mr
Clive Tomlinson
(Sheffield University)
10/04/2013, 08:45
Parallel Track 4
General Relativity predicts that astrophysical systems or events with high mass-energy flux emit gravitational waves, a time varying curvature of space-time which carry energy, and propagate at the speed of light. The spatial strain induced by a passing gravitational wave (GW) is exceedingly small (~10-21), making their detection amidst instrumental noise a highly technical challenge. To...
Dr
Matti Kalliokoski
(Lancaster University)
10/04/2013, 08:57
Parallel Track 2
String-theory based extensions of the Standard Model (SM) introduce a set of new particles and fields. The only renormalizable interaction with the visible SM can occur via kinetic mixing of SM photon with the hidden sector photon (HSP).
These photon oscillations can be studied with “light shining through wall” type of experiments. One of these experiments is being built by the CASCADE...
Cristovao Vilela
(University College London)
10/04/2013, 08:57
Parallel Track 4
SuperNEMO is a low background experiment with the aim of observing neutrinoless double beta decay, an extremely rare nuclear decay which is the only known method for determining whether neutrinos are Majorana or Dirac particles. The detector comprises tracker and calorimeter submodules, the former currently being built in the UK. This talk will focus on the effort towards the development of...
James Edwin Mylroie-Smith
(Queen Mary, University of London)
10/04/2013, 08:57
Parallel Track 3
Design and manufacturing of a Monolithic Active Pixel Sensor in a CMOS Image Sensor (CIS) 180 nm technology.
The Arachnid collaboration, UK
The Arachnid collaboration has been set up in the UK to develop CMOS Monolithic Active Pixel Sensors. The first device of this collaboration is named Cherwell. The Cherwell device consists of several arrays of pixel optimised either for vertexing or...
Indrek Sepp
(Imperial College Sci., Tech. & Med. (GB))
10/04/2013, 08:57
Parallel Track 1
The RICH is a subdetector of the LHCb experiment, it is used to distinguish between Pions,Kaons and Protons in a momentum range of 1-100 GeV. The RICH detects Cherenkov radiation which is emitted by particles as they pass through gas and aerogel mediums. The performance of the detector is dependent on the photon yield - the number of Cherenkov photons that are detected by the RICH. This...
Mr
Dean Forshaw
(University of Liverpool)
10/04/2013, 09:09
Parallel Track 4
To extend the physics reach of the LHC, upgrades to the accelerator are planned which will increase the peak luminosity by a factor of 5 to 10. This will increase the occupancy and the radiation damage of the inner trackers.To cope with the elevated occupancy, the ATLAS experiment plans to introduce an all-silicon inner tracker with the High Luminosity-LHC (HL-LHC) phase-II upgrade. This...
Matthew Lawe
(University of Sheffield)
10/04/2013, 09:09
Parallel Track 2
The cross-section uncertainty for neutrino interactions with associated pi0-meson production is an important systematic uncertainty in the measurement of electron-neutrino appearance within the Super-Kamiokande (far) detector of the T2K experiment. The pi0 analysis group of ND280 (near) detector are developing multiple parallel analyses with the aim of producing several pi0, inclusive and...
Gianluca Inguglia
(Queen Mary University of London)
10/04/2013, 09:09
Parallel Track 3
Time-dependent studies in B mesons have enabled us to study in great detail the properties of the unitarity triangle. We describe a set of decay channels of the D^0 meson that can be used not only as an indirect test of CP conservation/breaking in the up sector of the standard model but also to infer properties of the charm unitarity triangle (ie the internal angle beta_c). Furthermore,...
Edward Overton
(The University of Sheffield)
10/04/2013, 09:09
Parallel Track 1
The International Muon Ionisation Cooling Experiment (MICE) is a proof of principle demonstration of ionisation cooling for application in a future neutrino factory or muon collider. The experiment will measure the beam emittance before and after cooling to a high precision using individual particle measurements.
MICE is under construction at the Rutherford Appleton Laboratory (UK), where a...
Lee Tomlinson
(University of Manchester (GB))
10/04/2013, 09:21
Parallel Track 2
The calibration of the absolute luminosity scale at ATLAS is performed by dedicated van der Meer (vdM) scans. The current process assumes the factorisation of the luminosity distribution in the horizontal and vertical directions (x and y, respectively). I study a model in which the individual beam densities are parameterised as single-Gaussians. The model includes the possibility of having a...
Samer Al-Kilani
(University of London (GB))
10/04/2013, 09:21
Parallel Track 1
The LHC is currently on its first upgrade phase (PHASE-0) and anticipating 2 further upgrades with the last phase (PHASE-II) foreseen for 2022-2023. PHASE-II will aim to increase the integrated luminosity of the LHC to ten times fold the original LHC design luminosity. The so called HL-LHC will introduce harsher conditions in terms of particle count and radiation dosage. An international R&D...
Dr
Joseph Walding
(Royal Holloway, University of London)
10/04/2013, 09:21
Parallel Track 3
DEAP-3600 is a tonne-scale single-phase liquid argon dark matter experiment currently under construction at SNOLab, Ontario, Canada that will see first data in early 2014. This talk will discuss dark matter detection in single-phase liquid argon detectors, the DEAP-3600 detector design, and the calibration systems.
Henrique Araujo
(Imperial College London)
10/04/2013, 09:21
Parallel Track 4
We present the status of two WIMP search projects based on two-phase xenon emission detectors: the Large Underground Xenon (LUX) experiment, presently in the final stages of commissioning at the Sanford Underground Laboratory, and the LZ (LUX-ZEPLIN) project, a next-generation experiment featuring a 7-tonne xenon target being developed by US, UK and Portuguese teams. The LUX detector contains...
Roxanne Guenette
(Yale University)
10/04/2013, 09:33
Parallel Track 1
Liquid Argon (LAr) detectors are an excellent choice for neutrino detection and direct dark matter searches mainly due to their scalability. The next generation of experiments aims to construct very large scale detectors, however a lot of R&D is still required to demonstrate the technology. For example, both neutrino and dark matter experiments utilise the scintillation light produced in the...
Darren Lee Burton
(Imperial College Sci., Tech. & Med. (GB))
10/04/2013, 09:33
Parallel Track 3
Searches for Supersymmetry in all hadronic final states at 8TeV, with the dimensionless kinematic variable alphaT as the main discriminator between events with genuine and mis-reconstructed missing transverse energy.
Adrian Bevan
(University of London (GB))
10/04/2013, 09:33
Parallel Track 4
The laws of quantum physics can be studied under
the mathematical T operation that inverts the direction of time.
Strong and electromagnetic forces are known to be invariant under temporal inversion, however the weak force is
not. The BaBar experiment recently exploited the quantum-correlated production
of neutral B mesons to show that T is a broken symmetry. Here
we show that it is...
Henry Brown
(University of Liverpool (GB))
10/04/2013, 09:33
Parallel Track 2
Searches are on-going at LHCb top explore the top quark sector, which has yet to be measured at high eta at LHCb, providing a theoretical overview, and discussion of a dilepton+b jet analysis.
Nikos Konstantinidis
(University College London (UK))
10/04/2013, 10:00
Plenary - Future of the Programme
The high luminosity upgrade programme of the LHC has emerged as one of the highest priorities for CERN and European Particle Physics in the recent European Strategy consultation process.
I will review the physics motivation for this programme, the proposed detector upgrades and the ongoing R&D.
Stavros KATSANEVAS
(CNRS/IN2P3)
10/04/2013, 10:30
Jim Strait
(Fermi National Accelerator Laboratory (FNAL))
10/04/2013, 11:50
Prof.
Sachio Komamiya
(The University of Tokyo)
10/04/2013, 12:20
Plenary - Future of the Programme
The discovery of a new particle which is consistent with the Higgs Boson has opened up a new era in particle physics. Its precise measurements develops physics beyond the current Standard Model. Japanese high energy community issued a report "Future HEP Projects of Japan" in March 2012. In the report early realization of linear collider is given. In October 2012, based on the consensus of the...
Dr
Alex Murphy
(University of Edinburgh)
10/04/2013, 13:15
John William Womersley
(STFC - Science & Technology Facilities Council (GB))
10/04/2013, 14:00
Jonathan Butterworth
(University College London (UK))
10/04/2013, 14:30
John William Womersley
(STFC - Science & Technology Facilities Council (GB)),
Jonathan Butterworth
(University College London (UK)), Prof.
Philip Burrows
(Oxford University)
10/04/2013, 15:15
Dave Wark
(RAL / Imperial College London)
10/04/2013, 15:30
