Conveners
Track 3
- Jan Kretzschmar (University of Liverpool (GB))
Track 3
- Henrique Araujo (Imperial College London)
Track 3
- Sam Henry (University of Oxford)
Myfanwy Liles
(University of Liverpool (GB))
4/9/13, 8:45 AM
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...
Jack Robert Goddard
(University of London (GB))
4/9/13, 8:57 AM
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...
Karoline Elfriede Selbach
(University of Edinburgh (GB))
4/9/13, 9:09 AM
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....
Ms
Chiara Debenedetti
(The University of Edinburgh)
4/9/13, 9:21 AM
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...
53.
Model dependent measurement of charm mixing and CPV parameters in prompt D0->KShh decays at LHCb
Nick Torr
(University of Oxford (GB))
4/9/13, 9:33 AM
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...
Karim Massri
(University of Birmingham (GB))
4/9/13, 9:45 AM
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...
Alex Pearce
(STFC - Science & Technology Facilities Council (GB))
4/9/13, 1:30 PM
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...
Gregory Max Ciezarek
(Imperial College Sci., Tech. & Med. (GB))
4/9/13, 1:42 PM
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...
Sarah Louise Williams
(University of Cambridge (GB))
4/9/13, 1:54 PM
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...
Liam Duguid
(University of London (GB))
4/9/13, 2:06 PM
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...
Yan Jie Schnellbach
(University of Liverpool (GB))
4/9/13, 2:18 PM
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.
Mr
Peter Sinclair
(Imperial College London)
4/9/13, 2:30 PM
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...
Ian Coulter
(O)
4/9/13, 2:42 PM
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...
Benjamin Smith
(Imperial College London)
4/9/13, 2:54 PM
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...
Stephen Sadler
(University of Sheffield)
4/9/13, 3:06 PM
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,...
Kate Dutson
(University of Leicester)
4/10/13, 8:45 AM
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...
James Edwin Mylroie-Smith
(Queen Mary, University of London)
4/10/13, 8:57 AM
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...
Gianluca Inguglia
(Queen Mary University of London)
4/10/13, 9:09 AM
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,...
Dr
Joseph Walding
(Royal Holloway, University of London)
4/10/13, 9:21 AM
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.
Darren Lee Burton
(Imperial College Sci., Tech. & Med. (GB))
4/10/13, 9:33 AM
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.
