Performance of the CMS Level-1 trigger during commissioning with cosmic ray muons and LHC beams

Date

2010-03-01

Author

Chatrchyan, S.
Khachatryan, V.
Sirunyan, A. M.
Adam, W.
Arnold, B.
Bergauer, H.
Bergauer, T.
Dragicevic, M.
Eichberger, M.
Eroe, J.
Friedl, M.
Fruehwirth, R.
Ghete, V. M.
Hammer, J.
Haensel, S.
Hoch, M.
Hoermann, N.
Hrubec, J.
Jeitler, M.
Kasieczka, G.
Kastner, K.
Krammer, M.
Liko, D.
de Abril, I. Magrans
Mikulec, I.
Mittermayr, F.
Neuherz, B.
Oberegger, M.
Padrta, M.
Pernicka, M.
Rohringer, H.
Schmid, S.
Schoefbeck, R.
Schreiner, T.
Stark, R.
Steininger, H.
Strauss, J.
Taurok, A.
Teischinger, F.
Themel, T.
Uhl, D.
Wagner, P.
Waltenberger, W.
Walzel, G.
Widl, E.
Wulz, C. -E.
Chekhovsky, V.
Dvornikov, O.
Emeliantchik, I.
Litomin, A.
Makarenko, V.
Marfin, I.
Mossolov, V.
Shumeiko, N.
Solin, A.
Stefanovitch, R.
Gonzalez, J. Suarez
Tikhonov, A.
Fedorov, A.
Karneyeu, A.
Korzhik, M.
Panov, V.
Zuyeuski, R.
Kuchinsky, P.
Beaumont, W.
Benucci, L.
Cardaci, M.
De Wolf, E. A.
Delmeire, E.
Druzhkin, D.
Hashemi, M.
Janssen, X.
Maes, T.
Mucibello, L.

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The CMS Level-1 trigger was used to select cosmic ray muons and LHC beam events during data-taking runs in 2008, and to estimate the level of detector noise. This paper describes the trigger components used, the algorithms that were executed, and the trigger synchronisation. Using data from extended cosmic ray runs, the muon, electron/photon, and jet triggers have been validated, and their performance evaluated. Efficiencies were found to be high, resolutions were found to be good, and rates as expected.

Subject Keywords

Instrumentation, Mathematical Physics

URI

https://hdl.handle.net/11511/63079

Journal

JOURNAL OF INSTRUMENTATION

DOI

https://doi.org/10.1088/1748-0221/5/03/t03002

Collections

Department of Physics, Article

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Citation Formats

S. Chatrchyan et al., “Performance of the CMS Level-1 trigger during commissioning with cosmic ray muons and LHC beams,” JOURNAL OF INSTRUMENTATION, pp. 0–0, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63079.