TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jaimes Elles, S. J.
AU  - Jashal, B. K.
AU  - Martinez Vidal, F.
AU  - Oyanguren, A.
AU  - Rebollo De Miguel, M.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanderswood, I.
PY  - 2023
DA  - 2023//
TI  - First observation of the B+→D+sD−sK+ decay
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 034012
EP  - 14pp
VL  - 108
AB  - The B+→D+sD−sK+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9  fb−1. Its branching fraction relative to that of the B+→D+D−K+ decay is measured to be B(B+→D+sD−sK+)B(B+→D+D−K+)=0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the D±s→K∓K±π± and D±→K∓π±π± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored ¯b→¯cc¯s transitions and opens the path for unique studies of spectroscopy in future.
UR  - https://arxiv.org/abs/2211.05034
UR  - https://doi.org/10.1103/PhysRevD.108.034012
DO  - 10.1103/PhysRevD.108.034012
N1  - exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6090), last updated on Fri, 26 Apr 2024 14:54:44 +0000
ID  - LHCbCollaborationAaij_etal2023
ER  -