Cherenkov light in ALICE: performance of the HMPID detector

被引：0
作者：
Molnar, L. [1 ]
机构：
[1] CERN, CH-1211 Geneva 23, Switzerland
来源：
ASTROPARTICLE, PARTICLE, SPACE PHYSICS AND DETECTORS FOR PHYSICS APPLICATIONS | 2012年 / 7卷
关键词：
ALICE; HMPID; RICH; CsI photocathode;
D O I：
暂无
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The ALICE High Momentum Particle Identification detector (HMPID), a proximity focusing Ring Imaging Cherenkov counter, is the largest of its kind with the 11 m(2) CsI-based photon detector total area. The HMPID is designed and optimized for identification of charged pi, K, p and on a track-by-track basis in heavy-ion collisions at LHC energies. To achieve track-by-track identification, 3 sigma separation is required for pi/K and K/p in the momentum range of 1-3 GeV/c and 1.5-5 GeV/c respectively. The HMPID is part of the ALICE data taking since the first proton-proton collisions and was also successfully operated in the first heavy-ion run in 2010. In this talk, we present the detector performance at the present time and its evolution over the past two years of operation in the LHC environment.
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页码：874 / 879
页数：6
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