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/ψμ+ν to the B+ meson in the decay mode B+→J/ψK+ in proton-antiproton collisions at center-of-mass energy s√=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/ψK+ branching fraction, the known B+ production cross section, and a selection of the predicted B+c→J/ψμ+ν branching fractions, the range for the total B+c production cross section is estimated.

Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., et al. (2016). Measurement of theBc±production cross section inpp¯collisions ats=1.96  TeV. PHYSICAL REVIEW D, 93(5), 052001-1-052001-27 [10.1103/PhysRevD.93.052001].

Measurement of theBc±production cross section inpp¯collisions ats=1.96  TeV

BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, STEFANO
2016

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/ψμ+ν to the B+ meson in the decay mode B+→J/ψK+ in proton-antiproton collisions at center-of-mass energy s√=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/ψK+ branching fraction, the known B+ production cross section, and a selection of the predicted B+c→J/ψμ+ν branching fractions, the range for the total B+c production cross section is estimated.
2016
Aaltonen, T., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., et al. (2016). Measurement of theBc±production cross section inpp¯collisions ats=1.96  TeV. PHYSICAL REVIEW D, 93(5), 052001-1-052001-27 [10.1103/PhysRevD.93.052001].
Aaltonen, T.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.  . a.; Arisawa, T.; Artikov, A.; Asaadi, J.; As...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/537076
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