The efficiency of the CMS Level-1 Triggerfor supersymmetric events

L. Boldizsár, J. Erö, M. Fierro, P. Hidas, A. Jeitler, N. Neumeister, P. Porth, H. Rohringer, L. Rurua, H. Sakulin, A. Taurok, C. E. Wulz

Research output: Contribution to journalArticle


The performance of the CMS Level-1 Trigger for supersymmetric events at an LHC luminosity of 2 x 1033 cm-2s-1 is reviewed. Energy and momentum trigger thresholds have been chosen to yield a maximum Level-1 output rate of 50 kHz, within a safety factor of three. The Level-1 trigger efficiencies for the majority of the channels studied are found to be greater than 90%, which provides a good basis for the High-Level Trigger, where more stringent conditions are applied. Reasons for occasional lower efficiencies are given.

Original languageEnglish
Pages (from-to)1-13
Number of pages13
JournalEuropean Physical Journal C
Issue number5
Publication statusPublished - May 1 2005

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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    Boldizsár, L., Erö, J., Fierro, M., Hidas, P., Jeitler, A., Neumeister, N., Porth, P., Rohringer, H., Rurua, L., Sakulin, H., Taurok, A., & Wulz, C. E. (2005). The efficiency of the CMS Level-1 Triggerfor supersymmetric events. European Physical Journal C, 40(5), 1-13.