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Measurement of the inclusive Z cross section via decays to tau pairs in pp collisions at vs = 7 TeV

Abstract: The first measurement of inclusive Z ? ?+?? production in pp collisions at the LHC is presented, in the final states µ+hadrons, e+hadrons, e+µ, and µ+µ. The data sample corresponds to an integrated luminosity of 36 pb?1 collected with the CMS detector. The measured cross section is ? (pp ? ZX)×B (Z ? ?+??) = 1.00±0.05 (stat.)±0.08 (syst.) ± 0.04 (lumi.) nb, which is in good agreement with the next-to-next-to-leading order QCD prediction and improves on previous measurements in the Z ? e+e? and µ+µ? channels. The reconstruction efficiency for hadronic ? decays is determined with a precision of 7%.

Other publications of the same journal or congress with authors from the University of Cantabria

 Authorship: Chatrchyan S., Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hänsel S., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kasieczka G., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rohringer H., Schöfbeck R., Strauss J., Teischinger F., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N

 Fuente: Journal of High Energy Physics, 2011, 2011(8), 117

Publisher: Springer Verlag

 Publication date: 01/08/2011

No. of pages: 32

Publication type: Artículo de Revista

 DOI: 10.1007/JHEP08(2011)117

ISSN: 1126-6708,1029-8479

Publication Url: https://doi.org/10.1007/JHEP08(2011)117

Authorship

CHATRCHYAN, S.

JAVIER ANDRES BROCHERO CIFUENTES

SHANHUEI CHUANG

MARTA FELCINI

MARCOS FERNANDEZ GARCIA

CLARA JORDA LOPE

PATRICIA LOBELLE PARDO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO

MARIA DEL MAR SOBRON SAÑUDO