Trigger efficiencies at BES

Trigger efficiencies at BESⅢ were determined for both the J/ψ and ψ＇ data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and ψ＇→π＋π-J/ψ, J/ψ→ 1＋1- events...

Full description

Saved in:
Bibliographic Details
Published in:Chinese physics C 2010, Vol.34 (12), p.1779-1784
Main Author: N．Berger 朱凯 刘振安 金大鹏 徐昊 龚文煊 王科 曹国富
Format: Article
Language:English
Subjects:
北京谱仪
强子衰变
数据集
触发效率
设计规格
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Trigger efficiencies at BESⅢ were determined for both the J/ψ and ψ＇ data taking of 2009. Both dedicated runs and physics datasets are used; efficiencies are presented for Bhabha-scattering events, generic hadronic decay events involving charged tracks, dimuon events and ψ＇→π＋π-J/ψ, J/ψ→ 1＋1- events.The efficiencies are found to lie well above 99% for all relevant physics cases, thus fulfilling the BESⅢ design specifications.
ISSN:1674-1137
0254-3052