@Article{LHCbCollaborationAaij_etal2017,
author="LHCb Collaboration (Aaij, R. et al
and Garcia Martin, L. M.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Valls, P.
and Sanchez Mayordomo, C.",
title="Observation of the Decay Xi(-)(b) -> pK(-)K(-)",
journal="Physical Review Letters",
year="2017",
publisher="Amer Physical Soc",
volume="118",
number="7",
pages="071801--11pp",
abstract="Decays of the Xi(-)(b) and Omega(-)(b) baryons to the charmless final states ph(-)h{\textquoteright}(-), where h(({\textquoteright})) denotes a kaon or pion, are searched for with the LHCb detector. The analysis is based on a sample of proton-proton collision data collected at center-of-mass energies root s = 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb(-1). The decay Xi(-)(b) -> pK(-)K(-) is observed with a significance of 8.7 standard deviations, and evidence at the level of 3.4 standard deviations is found for the Xi(-)(b) -> pK(-)pi(-) decay. Results are reported, relative to the B- -> K+K-K- normalization channel, for the products of branching fractions and b-hadron production fractions. The branching fractions of Xi(-)(b) -> pK(-)pi(-) and Xi(-)(b) -> p pi(-)pi(-) relative to Xi(-)(b) -> pK(-)K(-) decays are also measured.",
optnote="WOS:000394096000003",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2966), last updated on Thu, 23 Mar 2017 11:52:06 +0000",
issn="0031-9007",
doi="10.1103/PhysRevLett.118.071801",
opturl="http://arxiv.org/abs/1612.02244",
opturl="https://doi.org/10.1103/PhysRevLett.118.071801",
archivePrefix="arXiv",
eprint="1612.02244",
language="English"
}