Physical design of main drift chamber trigger for BES III experiment

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	Physical design of main drift chamber trigger for BES III experiment
	Xu H(徐昊); Liu ZA(刘振安); Jin DP(金大鹏); Wang DY(王大勇); Zhao DX(赵棣新); Guo YN(过雅南); Xu, H; Liu, ZA; Jin, DP; Wang, DY
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2005
卷号	29 期号:4 页码:376-382
关键词	trigger BES III MDC
其他题名	BESIII触发系统MDC子系统的物理设计
通讯作者	CAS, Inst High Energy Phys, Beijing 100049, Peoples R China ; Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
英文摘要	This article describes the design and simulation of the scheme of Main Drift Chamber ( MDC) trigger for BES III (Beijing Spectrometer III). The algorithm of MDC trigger includes 3 steps: track segments finding (TSF), track finding (TF) and trigger condition formation of MDC tracks. These trigger conditions are studied carefully and the trigger parameters are optimized through simulation. Trigger efficiencies vs. p(t), vertex position r-psi and z are presented. Trigger efficiency exceeds 99% for J/psi events and some important physics channels. The rejection of beam-related backgrounds exceeds 99.99% and the rate of cosmic rays is about 18Hz.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000228506500009
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237232]
专题	中国科学院高能物理研究所_中国散裂中子源高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xu H,Liu ZA,Jin DP,et al. Physical design of main drift chamber trigger for BES III experiment[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2005,29(4):376-382.
APA	徐昊.,刘振安.,金大鹏.,王大勇.,赵棣新.,...&Guo, YN.(2005).Physical design of main drift chamber trigger for BES III experiment.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,29(4),376-382.
MLA	徐昊,et al."Physical design of main drift chamber trigger for BES III experiment".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 29.4(2005):376-382.