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FORCE 2011: High Precision CP Violation Physics at LHCb

English title FORCE 2011: High Precision CP Violation Physics at LHCb
Applicant Schneider Olivier
Number 134940
Funding scheme FORCE / CERN
Research institution Laboratoire de physique des hautes énergies 2 EPFL - SB - IPEP - LPHE2
Institution of higher education EPF Lausanne - EPFL
Main discipline Particle Physics
Start/End 01.07.2011 - 30.06.2012
Approved amount 296'525.00
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Keywords (9)

b quark; B mesons; heavy flavour; CP violation; CKM matrix; New Physics; Standard Model; LHCb; LHC

Lay Summary (English)

Lead
Lay summary
The LHCb detector is designed for precise measurements of CP violation and rare B decays at the LHC collider at CERN. The main physics aims are to elucidate the flavour structure in the quark sector, and look for New Physics manifestations in the decay of charm and bottom hadrons.
LHCb has successfully recorded LHC’s first collisions in December 2009, and higher energy collisions since Spring 2010. The analysis of the first data has already produced physics publications and demonstrated that the key measurements of the physics programme can be embarked on with the expected statistics to be collected during the 2010-2011 physics run. The LHCb collaboration is studying the possibility to upgrade the detector in view of running at ~10 times higher instantaneous luminosities.
Our particle physics group in Lausanne has played important roles in LHCb since the beginning of the project in 1995. Our detector construction and maintenance responsibilities cover the so-called TELL1 common readout boards, the powering system and analogue transmission electronics for the silicon vertex detector VELO, and the downstream stations (Inner Tracker) of the Silicon Tracker. The latter responsibility is assumed in collaboration with the group of prof. U. Straumann at the University of Zurich. In addition, and according to the construction Memorandum of Understanding (MoU), the two groups have had a significant financial responsibility for the online system, including the computer farm for the high-level trigger of the experiment.
Our objectives for the forthcoming 1-year funding period 2011-2012 are the following:
• Operate, monitor, maintain and (when needed) improve the hardware devices under our responsibility to keep them fully operational for physics data-taking.
• Secure LHCb’s ability to efficiently process data at the trigger level, in order to ensure the best possible physics output from the data recorded during the 7 TeV run.
• Improve the local computer cluster of our laboratory at EPFL, and hence our group’s ability to contribute significantly to the physics analysis of the LHCb data.
• Design and test a replacement for the Inner Tracker detector boxes based on the fibre-tracking technology, in view of a construction in 2012.
• In view of a possible upgrade, coordinate and participate in the development of subsequent versions of the TELL1 board, in particular the TELL10 board based on 10-Gigabit link technology.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
130218 FORCE 2010: High Precision CP Violation Physics at LHCb 01.07.2010 FORCE / CERN
141547 FORCE: Maintenance & Operation for the LHC Experiments 2012 01.04.2012 FORCE / CERN
129914 FORCE: Construction of the LHCb experiment 01.04.2010 FORCE / CERN
141096 High Precision CP Violation Physics at LHCb 01.04.2012 Project funding
129890 FORCE - GRID Infrastructure for LHC Experiments 01.04.2010 FORCE / CERN
130045 Maintenance and Operation 2010 for the LHC experiments at CERN 01.04.2010 FORCE / CERN
130202 High Precision CP Violation Physics at LHCb 01.04.2010 Project funding
127479 Particle Physics in the LHC Era 01.03.2010 ProDoc
141288 FORCE 2012: High Precision CP Violation Physics at LHCb 01.07.2012 FORCE / CERN

Abstract

The LHCb detector is designed for precise measurements of CP violation and rare B decays, exploiting the very large bottom production cross section at the LHC collider at CERN. The main physics aims are to elucidate the flavour structure in the quark sector, and look for New Physics manifestations in the decay of charm and bottom hadrons.LHCb has successfully recorded LHC's first collisions at 0.9 TeV during the pilot run in December 2009, and higher energy collisions since Spring 2010 at7 TeV. The analysis of the first few nb-1 of data has produced already two physics publications and demonstrated that the key measurements of the physics programme can be embarked on with the expected statistics of 1 fb-1 to be collected during the 2010-2011 physics run at 7 TeV. Our particle physics group in Lausanne has played important roles in LHCb since the beginning of the project in 1995. Our detector construction and maintenance responsibilities cover the so-called TELL1 common readout boards, the powering system and analog transmission electronics for the silicon vertex detector VELO, and the downstream stations (Inner Tracker) of the Silicon Tracker.Our objectives for the forthcoming 1-year funding period 2011-2012 are the following:- Operate, monitor, maintain and (when needed) improve the hardware devices under our responsibility to keep them fully operational for physics data-taking.- Secure LHCb's ability to efficiently process data at the trigger level, in order to ensure the best possible physics output from the data recorded during the 7 TeV run.- Improve the local computer cluster of our laboratory at EPFL, and hence our group's ability to contribute significantly to the physics analysis of the LHCb data.- Design and test a replacement for the Inner Tracker detector boxes based on the fibre-tracking technology, in view of a construction in 2012.- In view of a possible upgrade, coordinate and participate in the development of subsequent versions of the TELL1 board, in particular the TELL10 board based on 10-Gigabit link technology.FORCE funding will help us to achieve our objectives through the funding of a full-time technical position associated with the TELL1/TELL10 project, of additional capacity of the online computer farm in the LHCb pit, and of local computing equipment for our own lab.
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