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Journal articles
Observation of B+c→J/ψD(∗)K(∗) decays
R. Aaij
L. Beaucourt
1
M. Chefdeville
1
D. Decamp
1
N. Déléage
1
P. Ghez
1
J.-F. Marchand
1
M.-N. Minard
1
B. Pietrzyk
1
S. t'Jampens
1
V. Tisserand
1
E. Tournefier
1
R. Aaij
Author
L. Beaucourt 1
Author
M. Chefdeville 1
Author IdHAL : maximilien-chefdeville arXiv : https://arxiv.org/a/Maximilien Chefdeville MC ORCID : https://orcid.org/0000-0002-6553-6493
D. Decamp 1
Author
B. Pietrzyk 1
Author
S. t'Jampens 1
Author IdHAL : stephane-tjampens ORCID : https://orcid.org/0000-0003-4249-6641
V. Tisserand 1
Author
E. Tournefier 1
Author
1
LAPP - Laboratoire d'Annecy de Physique des Particules (9 Chemin de Bellevue - BP 110 - 74941 Annecy-le-Vieux CEDEX - France - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5814 (France)
Abstract : 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.
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Journal articles
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http://hal.in2p3.fr/in2p3-01431311
Contributor : Claudine Bombar Connect in order to contact the contributor
Submitted on : Tuesday, January 10, 2017 - 4:34:34 PM
Last modification on : Wednesday, January 6, 2021 - 6:22:03 PM
Contributor : Claudine Bombar Connect in order to contact the contributor
Submitted on : Tuesday, January 10, 2017 - 4:34:34 PM
Last modification on : Wednesday, January 6, 2021 - 6:22:03 PM
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Identifiers
- HAL Id : in2p3-01431311, version 1
- ARXIV : 1612.07421
- DOI : 10.1103/PhysRevD.95.032005
Collections
IN2P3 | CNRS | LAPP | UNIV-SAVOIE | UGA
Citation
R. Aaij, L. Beaucourt, M. Chefdeville, D. Decamp, N. Déléage, et al.. Observation of B+c→J/ψD(∗)K(∗) decays. Physical Review D, American Physical Society, 2017, 95, pp.032005 ⟨10.1103/PhysRevD.95.032005⟩. ⟨in2p3-01431311⟩
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