Proposal for the upgrade of the tracking and trigger systems of the CMD-3 detector

被引：4

作者：

Fedotovich, G. V. ^{[1
,2
]}

Shekhtman, L. I. ^{[1
,2
]}

Ruban, A. A. ^{[1
]}

Kozyrev, A. N. ^{[1
]}

机构：

[1] RAS, Budker Inst Nucl Phys SB, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

来源：

JOURNAL OF INSTRUMENTATION | 2014年 / 9卷

关键词：

Gaseous detectors; Micropattern gaseous detectors (MSGC; GEM; THGEM; RETHGEM; MHSP; MICROPIC; MICROMEGAS; InGrid etc); Particle tracking detectors (Gaseous detectors);

D O I：

10.1088/1748-0221/9/08/C08008

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Large cylindrical triple-GEM detector (CGEM) is proposed to upgrade the CMD-3 tracker subsystem. CGEM will be designed both for precise measurement of z-coordinate of tracks in drift chamber (DC) and for generating signals for the first level trigger. This chamber will have better spatial resolution, trigger segmentation and rate capability with respect to the present Z-chamber which is used in CMD-3 today. An end-cup discs with GEM-based detectors are also considered for the upgrade. This tracker will improve significantly the detection efficiency for multi-hadron events, will help to study processes with initial state radiation (ISR) and measure the cross section with double tagged electrons when two virtual photons radiated by initial electrons produced C-even states (pi(0), eta).

引用

页数：7

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