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

Abstract: 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.

 Authorship: Chatrchyan S., Khachatryan V., Sirunyan A.M., Adam W., Arnold B., Bergauer H., Bergauer T., Dragicevic M., Eichberger M., Erö J., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hansel S., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kasieczka G., Kastner K., Krammer M., Liko D., De Magrans Abril I., Mikulec I., Mittermayr F., Neuherz B., Oberegger M., Padrta M., Pernicka M., Rohringer H., Schmid S., Schöfbeck R., Schreiner T., S

 Fuente: Journal of Instrumentation, 2010, 5, T03002

 Publisher: Institute of Physics

 Year of publication: 2010

 No. of pages: 53

 Publication type: Article

 DOI: 10.1088/1748-0221/5/03/T03002

 ISSN: 1748-0221

 Publication Url: https://doi.org/10.1088/1748-0221/5/03/T03002

Authorship

SHANHUEI CHUANG

IRMA DIAZ MERINO

CARLOS DIEZ GONZALEZ

MARCOS FERNANDEZ GARCIA

REBECA GONZALEZ SUAREZ

CLARA JORDA LOPE

PATRICIA LOBELLE PARDO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

MARIA DEL MAR SOBRON SAÑUDO