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Measurement of the B+ Production Cross Section in pp Collisions at √s=7  TeV

AuthorsKhachatryan, V.; Brochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chamizo Llatas, M.; Chuang, S. H. ; Duarte Campderros, J. ; Felcini, Marta ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; Jorda, C. ; Lobelle Pardo, P. ; López Virto, A. ; Marco, Rafael ; Marco, Jesús ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Issue DateMar-2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 106(11): 112001 (2011)
AbstractMeasurements of the total and differential cross sections dσ/dpTB and dσ/dyB for B+ mesons produced in pp collisions at √s=7  TeV are presented. The data correspond to an integrated luminosity of 5.8  pb-1 collected by the CMS experiment operating at the LHC. The exclusive decay B+→J/ψK+, with J/ψ→μ+μ-, is used to detect B+ mesons and to measure the production cross section as a function of pTB and yB. The total cross section for pTB>5  GeV and |yB|<2.4 is measured to be 28.1±2.4±2.0±3.1  μb, where the first uncertainty is statistical, the second is systematic, and the last is from the luminosity measurement.
Description15 páginas, 2 figuras, 1 tabla.-- PACS numbers: 13.85.Ni, 12.38.Bx, 14.40.Nd.-- Creative Commons Attribution 3.0 License.-- CMS Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.106.112001
Appears in Collections:(IFCA) Artículos
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