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Measurement of the B[subscript s][superscript 0] Production Cross Section with B[subscript s][superscript 0] →J/ψϕ Decays in pp Collisions at √s=7  TeV

Author(s)
Alver, Burak Han; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; Dutta, Valentina; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Harris, Philip Coleman; Kim, Y.; Klute, Markus; Li, W.; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Rudolph, Matthew Scott; Stephans, George S. F.; Sung, Kevin Kai Hong; Wenger, Edward Allen; Yilmaz, Yetkin; Yoon, A. S.; Zanetti, Marco; Lee, Yen-Jie; Loizides, Constantinos; Roland, Gunther M; Sumorok, Konstanty C; Yang, Mingming; Xie, Si; Roland, Christof E; Stoeckli, Fabian; Wolf, Roger; Luckey Jr, P David; Bauer, Gerry P; ... Show more Show less
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Abstract
The B[subscript s][superscript 0] differential production cross section is measured as functions of the transverse momentum and rapidity in pp collisions at √s=7  TeV, using the B[subscript s][superscript 0] →J/ψϕ 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  pb[superscript -1]. The B[subscript s][superscript 0] is reconstructed from the decays J/ψ→μ[superscript +]μ[superscript -] and ϕ→K[superscript +]K[superscript -]. The integrated B[subscript s][superscript 0] cross section times B[subscript s][superscript 0] →J/ψϕ branching fraction in the range 8<p[subscript T][superscript B]<50  GeV/c and |yB|<2.4 is measured to be 6.9±0.6±0.6  nb, where the first uncertainty is statistical and the second is systematic.
Date issued
2011-06
URI
http://hdl.handle.net/1721.1/71192
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
S. Chatrchyan et al. "Measurement of the Bs0 Production Cross Section with Bs0→J/ψϕ Decays in pp Collisions at √s=7  TeV" Physical Review D 84, 052008 (2011). © 2011 CERN, for the CMS Collaboration
Version: Final published version
ISSN
1550-7998
1089-4918

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