IOP HEPP Particle Physics 2008

Session

Parallel 2B: Flavour Physics - LHC

1 Apr 2008, 11:00

Lancaster University

12. Quarkonium production and polarisation with early data at ATLAS

Mr Darren Price (Lancaster University)

01/04/2008, 11:00

One of the first physics results to come out of ATLAS will be an analysis of J/psi and Upsilon production at 14 TeV. I present an overview of the motivation for looking into the theoretical model underlying quarkonium production, ATLAS expected performance and rates for quarkonium reconstruction and its ability to separate out various proposed production models with a view to improving our...

20. Study of B+->D0(Kspi+pi-)K+ Dalitz decays and Sensitivity to gamma in LHCb

Ms Ying Ying Li (High Energy Physics Group, Cavendish Laboratory)

01/04/2008, 11:13

A measurement of the CP angle gamma at the tree-level is one of the principal goals of LHCb and provides a benchmark for any New Physics. One of the most precise direct determinations of gamma comes from the amplitude analysis of the Dalitz plots in B+-->(D0/D0-bar)K+- decays, where the D0/D0-bar decays to Kspi+pi-. This has been demonstrated at the B-factory experiments and will be a key...

34. Measuring Gamma with B0 --> D0K*0 decays at LHCb

Jacopo Nardulli (RAL)

01/04/2008, 11:26

The LHCb experiment at the LHC is a single-armed spectrometer designed to pursue extensive, high precision studies of CP violation and rare phenomena in B decays. The LHCb collaboration has studied various promising ways to determine the Unitarity Triangle angle Gamma. In this contribution, the potential of the B -> DK* decays has been studied by employing the combined...

39. Technical challenges to measurements of the CP phase gamma at LHCb with B->DK decays where the D->KsPiPi

Mr Sean Brisbane (CERN)

01/04/2008, 11:38

The large numbers of B-mesons produced in high energy proton-proton collisions inside the LHCb experiment at CERN will be exploited to measure precisely the CP violating phase gamma. I will discuss a method to probe gamma using decays of the form B->DK where the D->KsPiPi. The long fight distance of K0s necessitates a specialised fast reconstruction in order to exclusively trigger on this...

27. B_S->phiphi as a potential probe for New Physics at LHCb

Mr Nicholas Styles (University of Edinburgh)

01/04/2008, 11:50

The LHCb experiment, currently being commissioned at CERN, will perform precision measurements of mixing and decays in B-mesons. I will present studies on the decay B_s->phiphi, a channel in which physics beyond the Standard Model has the potential to affect parameters measurable at LHCb. An introduction to the channel will be given, including the physics of B-meson to Vector-Vector decays....

40. Performance and Physics with the channel Bs → J/ψ ϕ at ATLAS

Mr Alastair Dewhurst (Lancaster University)

01/04/2008, 12:05

The Bs → J/ψ ϕ decay exhibits CP violation sensitive to physics beyond the Standard Model. In order to extract physics parameters it will be necessary to perform a simultaneous fit to both the mass and lifetime of the reconstructed decays. At low luminosities the measured parameters will be useful in detector performance and alignment sensitive tests while at higher luminosities it will be...

55. Bs->J/Psi Phi and Misalignment in the ATLAS Detector

Ruth Davidson (Physics Department)

01/04/2008, 12:18

The decay of Bs->J/Psi Phi is parameterised by 8 variables, which we obtain from data using a maximum likelihood fit. The effect of systematic errors, particularly from detector resolution and misalignment, will significantly impact the accuracy of this fit. I investigate using lifetime measurements to estimate these errors.