TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2021
DA  - 2021//
TI  - Measurement of the branching fraction of the B0 -> Ds+ pi- decay
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 314 - 15pp
VL  - 81
IS  - 4
PB  - Springer
AB  - A branching fraction measurement of the B0 -> Ds+</mml:msubsup>pi- decay is presented using proton-proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of 5.0<mml:mspace width="0.166667em"></mml:mspace>fb-1. The branching fraction is found to be B(B0 -> Ds+</mml:msubsup>pi-)=(19.4 +/- 1.8 +/- 1.3 +/- 1.2)x10-6, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the B0 -> D-pi+, Ds+</mml:msubsup>-> K+K-pi+ and D--> K+pi-pi- branching fractions. This is the most precise single measurement of this quantity to date. As this decay proceeds through a single amplitude involving a b -> u charged-current transition, the result provides information on non-factorisable strong interaction effects and the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element <mml:msub>Vub. Additionally, the collision energy dependence of the hadronisation-fraction ratio <mml:msub>fs/<mml:msub>fd is measured through B<overbar></mml:mover>s0 -> Ds+pi- and B0 -> D-pi <mml:mo>+ decays.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2010.11986
UR  - https://doi.org/10.1140/epjc/s10052-020-08790-2
DO  - 10.1140/epjc/s10052-020-08790-2
LA  - English
N1  - WOS:000639810800004
ID  - LHCbCollaborationAaij_etal2021
ER  -