Measurement of the Bs0 Production Cross Section with Bs0→J/ψϕ Decays in pp Collisions at √s=7  TeV

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URI: http://hdl.handle.net/10902/2438
ISSN: 1550-7998
ISSN: 1550-2368
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Autoría
Chatrchyan, Serguei; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbanAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Chuang, Shan Huei; Duarte Campderros, JorgeAutoridad Unican; Felcini, Marta; Fernández García, MarcosAutoridad Unican; Gómez Gramuglio, GervasioAutoridad Unican; González Sánchez, Francisco JavierAutoridad Unican; Jordá Lope, Clara; Lobelle Pardo, Patricia; López Virto, María Amparo; Marco de Lucas, JesúsAutoridad Unican; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, FranciscoAutoridad Unican; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, JonatanAutoridad Unican; [et al.]
Fecha
2011-09-20
Derechos
Atribución 3.0 España. ©2011 CERN, for the CMS Collaboration
Publicado en
Physical review. D, Particles, fields, gravitation, and cosmology, vol. 84, iss. 5, art. num. 052008 (2011)
Editorial
American Physical Society
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Resumen/Abstract
The Bs0 differential production cross section is measured as functions of the transverse momentum and rapidity in pp collisions at √s=7  TeV, using the Bs0→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-1. The Bs0 is reconstructed from the decays J/ψ→μ+μ- and ϕ→K+K-. The integrated Bs0 cross section times Bs0→J/ψϕ branching fraction in the range 8<pTB<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.
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Atribución 3.0 España. ©2011 CERN, for the CMS CollaborationExcepto si se señala otra cosa, la licencia del ítem se describe como Atribución 3.0 España. ©2011 CERN, for the CMS Collaboration