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Measurement of the muon stopping power in lead tungstate

Abstract: A large sample of cosmic ray events collected by the CMS detector is exploited to measure the specific energy loss of muons in the lead tungstate (PbWO4) of the electromagnetic calorimeter. The measurement spans a momentum range from 5 GeV/c to 1 TeV/c. The results are consistent with the expectations over the entire range. The calorimeter energy scale, set with 120 GeV/c electrons, is validated down to the sub-GeV region using energy deposits, of order 100 MeV, associated with low-momentum muons. The muon critical energy in PbWO4 is measured to be 160+5?6±8 GeV, in agreement with expectations. This is the first experimental determination of muon critical energy.

 Autoría: 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, P03007

 Editorial: Institute of Physics

 Año de publicación: 2010

 Nº de páginas: 33

 Tipo de publicación: Artículo de Revista

 DOI: 10.1088/1748-0221/5/03/P03007

 ISSN: 1748-0221

 Url de la publicación: https://doi.org/10.1088/1748-0221/5/03/P03007

Autoría

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