TY - JOUR
T1 - Observation of B+c→J/ψD(∗)K(∗)Bc+→J/ψD(∗)K(∗) decays
AU - Parkes, Christopher
AU - Gersabeck, Marco
AU - Williams, Mark
AU - LHCb Collaboration
PY - 2017/2/21
Y1 - 2017/2/21
N2 - A search for the decays B+c→J/ψD(*)0K+ and B+c→J/ψD(*)+K*0 is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb−1. The decays B+c→J/ψD0K+ and B+c→J/ψD*0K+ are observed for the first time, while first evidence is reported for the B+c→J/ψD*+K*0 and B+c→J/ψD+K*0 decays. The branching fractions of these decays are determined relative to the B+c→J/ψπ+ decay. The B+c mass is measured, using the J/ψD0K+ final state, to be 6274.28±1.40(stat)±0.32(syst) MeV/c2. This is the most precise single measurement of the B+c mass to date.
AB - A search for the decays B+c→J/ψD(*)0K+ and B+c→J/ψD(*)+K*0 is performed with data collected at the LHCb experiment corresponding to an integrated luminosity of 3 fb−1. The decays B+c→J/ψD0K+ and B+c→J/ψD*0K+ are observed for the first time, while first evidence is reported for the B+c→J/ψD*+K*0 and B+c→J/ψD+K*0 decays. The branching fractions of these decays are determined relative to the B+c→J/ψπ+ decay. The B+c mass is measured, using the J/ψD0K+ final state, to be 6274.28±1.40(stat)±0.32(syst) MeV/c2. This is the most precise single measurement of the B+c mass to date.
U2 - 10.1103/PhysRevD.95.032005
DO - 10.1103/PhysRevD.95.032005
M3 - Article
SN - 1550-7998
VL - 95
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 3
M1 - 032005
ER -