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 and branching fraction measurement of the Λb0 → Ds- p decay
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 075
EP  - 23pp
VL  - 07
IS  - 7
PB  - Springer
KW  - B Physics
KW  - Branching fraction
KW  - Flavour Physics
KW  - Hadron-Hadron Scattering
AB  - The first observation of the Lambda(0)(b) -> D-s(-) p decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of root s = 13TeV, corresponding to a total integrated luminosity of 6 fb(-1). Using the Lambda(0)(b) -> Lambda(+pi-)(c) decay as the normalisation mode, the branching fraction of the Lambda(0)(b) -> D-s(-) p decay is measured to be B (Lambda(0)(b) -> D-s(-) p) = (12.6 +/- 0.5 +/- 0.3 +/- 1.2) x 10(-6), where the first uncertainty is statistical, the second systematic and the third due to uncertainties in the branching fractions of the Lambda(0)(b) -> Lambda(+pi-)(c), D-s(-) -> K-K+pi(-) and Lambda(+)(c) -> pK(-)pi(+) decays.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2212.12574
UR  - https://doi.org/10.1007/JHEP07(2023)075
DO  - 10.1007/JHEP07(2023)075
LA  - English
N1  - WOS:001062420000002
ID  - LHCbCollaborationAaij_etal2023
ER  -