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Abstract: We describe a measurement of the ratio of the cross sections times branching fractions of the B+c meson in the decay mode B+c?J/?µ+? to the B+ meson in the decay mode B+?J/?K+ in proton-antiproton collisions at center-of-mass energy vs=1.96??TeV. The measurement is based on the complete CDF Run II data set, which comes from an integrated luminosity of 8.7??fb-1. The ratio of the production cross sections times branching fractions for B+c and B+ mesons with momentum transverse to the beam greater than 6??GeV/c and rapidity magnitude smaller than 0.6 is 0.211±0.012(stat)+0.021-0.020(syst). Using the known B+?J/?K+ branching fraction, the known B+ production cross section, and a selection of the predicted B+c?J/?µ+?branching fractions, the range for the total B+c production cross section is estimated.
Fuente: Phys. Rev. D, Vol. 93, Num. 5, Pag. 052001 (2016)
Editorial: American Physical Society
Fecha de publicación: 01/05/2016
Nº de páginas: 27
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevD.93.052001
ISSN: 1550-7998,1550-2368,2470-0010,2470-0029
Url de la publicación: https://doi.org/10.1103/PhysRevD.93.052001
Leer publicación
AALTONEN, TIMO ANTERO
BRUNO CASAL LARAÑA
FRANCISCO JAVIER CUEVAS MAESTRO
GERVASIO GOMEZ GRAMUGLIO
JOSE ENRIQUE PALENCIA CORTEZON
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
ROCIO VILAR CORTABITARTE
JESUS MANUEL VIZAN GARCIA
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