The RICH detectors of the LHCb experiment

by Dr Antonis Papanestis (Rutherford Appleton Laboratory-STFC - Science & Technology Faci)

Friday 7 Oct 2011, 11:00 → 12:00 Europe/Zurich

40/S2-B01 - Salle Bohr (CERN)

Particle identification is a fundamental requirement of the LHCb experiment in order to fulfil its physics programme. Positive hadron identification is performed by two Ring Imaging Cherenkov (RICH) detectors with three Cherenkov radiators, identifying particles in the wide momentum range from 1 GeV/c up to 100 GeV/c. The system consists of 120 mirrors and 484 photon detectors operating in the fringe field of the LHCb magnet. The RICH detectors in LHCb have been operating for more than 3 years with excellent results. The performance of the particle identification of the system has been evaluated using particles identified via their decay kinematics alone. The challenges of operating, aligning and calibrating such a system will be presented, together with the performance evaluation and some of the first physics results relying on RICH particle identification.

Slides papanestis.pdf