A search for the decays Bc+ → J/ψ D(*)0 K+ and Bc+ → J/ψ D(*)+ K*0 is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb^−1. The decays Bc+ → J/ψ D0 K+ and Bc+ → J/ψ D*0 K+ are observed for the first time, while first evidence is reported for the Bc+ → J/ψ D*+ K*0 and Bc+ → J/ψ D+ K*0 decays. The branching fractions of these decays are determined relative to the Bc+ → J/ψ π+ decay. The Bc+ mass is measured, using the J/ψ D0 K+ final state, to be 6274.28 ± 1.40 (stat) ± 0.32 (syst) MeV/c^2. This is the most precise single measurement of the Bc+ mass to date.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Observation of Bc+ → J/ψ D(*) K(*) Decays. PHYSICAL REVIEW D, 95(3), 1-12 [10.1103/PhysRevD.95.032005].

Observation of Bc+ → J/ψ D(*) K(*) Decays

BETTI, FEDERICO;Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZUCCHELLI, STEFANO
2017

Abstract

A search for the decays Bc+ → J/ψ D(*)0 K+ and Bc+ → J/ψ D(*)+ K*0 is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb^−1. The decays Bc+ → J/ψ D0 K+ and Bc+ → J/ψ D*0 K+ are observed for the first time, while first evidence is reported for the Bc+ → J/ψ D*+ K*0 and Bc+ → J/ψ D+ K*0 decays. The branching fractions of these decays are determined relative to the Bc+ → J/ψ π+ decay. The Bc+ mass is measured, using the J/ψ D0 K+ final state, to be 6274.28 ± 1.40 (stat) ± 0.32 (syst) MeV/c^2. This is the most precise single measurement of the Bc+ mass to date.
2017
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Observation of Bc+ → J/ψ D(*) K(*) Decays. PHYSICAL REVIEW D, 95(3), 1-12 [10.1103/PhysRevD.95.032005].
Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alv...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/579007
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