TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2017
DA  - 2017//
TI  - First Observation of a Baryonic B-s(0) Decay
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 041802
EP  - 10pp
VL  - 119
IS  - 4
PB  - Amer Physical Soc
AB  - We report the first observation of a baryonic B-s(0) decay, B-s(0). p (Lambda) over barK(-), using proton-proton collision data recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb(-1). The branching fraction is measured to be B(B-s(0) -> p (Lambda) over bar K-)+ B(B-s(0) -> p (Lambda) over bar K+) [5.46 +/- 0.61 +/- 0.57 +/- 0.50(B) +/- 0.32(f(s)/(d))] x 10(-6), where the first uncertainty is statistical and the second systematic, the third uncertainty accounts for the experimental uncertainty on the branching fraction of the B-0 -> p (Lambda) over bar pi(-) decay used for normalization, and the fourth uncertainty relates to the knowledge of the ratio of b-quark hadronization probabilities f(s)/f(d).
SN  - 0031-9007
UR  - http://arxiv.org/abs/1704.07908
UR  - https://doi.org/10.1103/PhysRevLett.119.041802
DO  - 10.1103/PhysRevLett.119.041802
LA  - English
N1  - WOS:000406328300003
ID  - LHCbCollaborationAaij_etal2017
ER  -