Triggering on electrons and photons with CMS

Details Triggering on electrons and photons with CMS Triggering on electrons and photons with CMS

2012-02-03

arxiv.org/abs/1202.0594v1

Physics

Instrumentation and Detectors

"Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 4 pages, 3 figure. "

Scientific paper

Throughout the year 2011, the Large Hadron Collider (LHC) has operated with an instantaneous luminosity that has risen continually to around 4x10^33cm-2 s-1. With this prodigious high-energy proton collisions rate, efficient triggering on electrons and photons has become a major challenge for the LHC experiments. The Compact Muon Solenoid (CMS) experiment implements a sophisticated two-level online selection system that achieves a rejection factor of nearly 106. The first level (L1) is based on coarse information coming from the calorimeters and the muon detectors while the High-Level Trigger (HLT) combines fine-grain information from all sub-detectors. In this intense hadronic environment, the L1 electron/photon trigger provides a powerful tool to select interesting events. It is based upon information from the Electromagnetic Calorimeter (ECAL), a high-resolution detector comprising 75848 lead tungstate (PbWO4) crystals in a "barrel" and two "endcaps". The performance as well as the optimization of the electron/photon trigger are presented

Affiliated with

Also associated with

No associations

Rating

Triggering on electrons and photons with CMS does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Triggering on electrons and photons with CMS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triggering on electrons and photons with CMS will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-4056