@Article{LHCbCollaborationAaij_etal2023,
author="LHCb Collaboration (Aaij, R. et al
and Jaimes Elles, S. J.
and Jashal, B. K.
and Martinez-Vidal, F.
and Oyanguren, A.
and Rebollo De Miguel, M.
and Ruiz Vidal, J.
and Sanderswood, I.
and Zhuo, J.",
title="Observation and branching fraction measurement of the decay $\Xi$b- {\textrightarrow} $\Lambda$0 b$\pi$-",
journal="Physical Review D",
year="2023",
publisher="Amer Physical Soc",
volume="108",
number="7",
pages="072002--16pp",
abstract="The decay E-b -> A0bx-- is observed using a proton-proton collision data sample collected at center-of-ffiffimass energy p s 1/4 13 TeV with the LHCb detector, corresponding to an integrated luminosity of 5.5 fb-1. This process is mediated by the s -> uu over bar d quark-level transition, where the b quark in the E-b baryon is a spectator in the decay. Averaging the results obtained using the two A0b decay modes, A0b -> A thorn c x-- and A0b -> A thorn c x--x- thorn x--, the relative production ratio is measured to be ofE-b =fA0b thorn BoE-b -> A0bx-- thorn 1/4 o7.3 ⠂ 0.8 ⠂ 0.6 thorn x 10-4. Here the uncertainties are statistical and systematic, respectively, and fE-bofA0b thorn is the fragmentation fraction for a b quark into a E-b (A0b) baryon. Using an independent measurement of fE-b =fA0b, the branching fraction BoE-b -> A0bx-- thorn 1/4 o0.89 ⠂ 0.10 ⠂ 0.07 ⠂ 0.29 thorn {\%} is obtained, where the last uncertainty is due to the assumed SU(3) flavor symmetry in the determination of fE-b =fA0b.",
optnote="WOS:001102989700001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5895), last updated on Wed, 10 Apr 2024 12:47:56 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.108.072002",
opturl="https://arxiv.org/abs/2307.09427",
opturl="https://doi.org/10.1103/PhysRevD.108.072002",
language="English"
}