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Measurement of the Bs0 production cross section with Bs0?J/? Decays in pp collisions at vs=7TeV

Abstract: The B0s differential production cross section is measured as functions of the transverse momentum and rapidity in pp collisions at ffiffis p ¼ 7 TeV, using the B0s ! J=c decay, and compared with predictions based on perturbative QCD calculations at next-to-leading order. The data sample, collected by the CMS experiment at the LHC, corresponds to an integrated luminosity of 40 pb1. The B0s is reconstructed from the decays J=c ! þ and ! KþK. The integrated B0s cross section times B0s ! J=c branching fraction in the range 8 < pBT < 50 GeV=c and jyBj < 2:4 is measured to be 6:9 0:6 0:6 nb, where the first uncertainty is statistical and the second is systematic.

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., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Teischinger F., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N.,

Fuente: Physical Review D - Particles, Fields, Gravitation and Cosmology, 2011, 84(5), 052008

Publisher: American Physical Society

Publication date: 01/09/2011

No. of pages: 16

Publication type: Article

DOI: 10.1103/PhysRevD.84.052008

ISSN: 1550-7998,1550-2368,2470-0010,2470-0029

Publication Url: https://doi.org/10.1103/PhysRevD.84.052008

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