CMS Level—1 Regional Calorimeter Trigger System  

作　　者：P.Chumney S.Dasu 等 

机构地区：[1]UniversityofWisconsin－Madison

出　　处：《International Conference on Computing in High Energy and Nuclear Physics》2001年第1期632-635,共4页高能物理与核物理计算国际会议公报（英文版）

摘　　要：The CMS regional calorimeter trigger system detects signatures of electrons/photons,taus,jets,and missing and total transverse energy in a deadtinmess pipelined architecture .This system receives 7000 calorimeter tregger tower energies on 1.2 Gband digital copper cable serial links and processes them in a low-latency pipelined design using custom-built electronics.At the heart of the system is the Receiver Card which uses the new generation of gigabit ethernet receiver chips on a mezzanine card to convert serial data to parallel data before transmission on a 160 MHz backplane for further processing by cards that sum energies and identify electrons and jets.We describe the algorithms and hardware implementation,and summarize the simulation results that show that this system is capable of handling the rate requirements while triggering on physics signals with high efficiency.

关 键 词：CMS实验 热量计 解发系统 

分 类 号：O572.21[理学—粒子物理与原子核物理]