Observation of <i>B<sub>c</sub><SUP>+</SUP> → J/ψD<SUP>(</SUP>*<SUP>)</SUP> K<SUP>(</SUP>*<SUP>)</SUP></i> decays

Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G
et al (show 758 more authors) (2017) Observation of <i>B<sub>c</sub><SUP>+</SUP> → J/ψD<SUP>(</SUP>*<SUP>)</SUP> K<SUP>(</SUP>*<SUP>)</SUP></i> decays. PHYSICAL REVIEW D, 95 (3). 032005-.

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

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-055.html
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 11 Sep 2017 12:54
Last Modified: 07 Oct 2023 12:23
DOI: 10.1103/PhysRevD.95.032005
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3009397