The performance of the CMS ECAL Preshower detector at LHC

被引：0

作者：

Liu, Zong-Kai ^{[1
]}

Kuo, Chia-Ming ^{[1
]}

Li, Syue-Wei ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Phys, 300 Jhongda Rd, Jhongli 320, Taoyuan County, Taiwan

来源：

35TH INTERNATIONAL CONFERENCE OF HIGH ENERGY PHYSICS (ICHEP 2010) | 2010年

关键词：

D O I：

暂无

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The Preshower detector is part of the CMS endcap electromagnetic calorimeter, located in front of the lead tungstate crystals. It comprises two orthogonal planes of silicon strip sensors each preceded by a thin layer of lead. The purpose of the Preshower is to identify two closely spaced photons from pi(0) decays, allowing a reduction of one of the backgrounds to the two-photon decay channel of the intermediate mass Higgs boson - pi(0)s in jets faking photons. Following a brief overview of the design of the Preshower, we present occupancy measurements and first insitu absolute calibration.

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页数：3

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