@Article{LHCbCollaborationAaij_etal2014,
author="LHCb Collaboration (Aaij, R. et al
and Martinez-Vidal, F.
and Oyanguren, A.
and Ruiz Valls, P.
and Sanchez Mayordomo, C.",
title="Observation of the Lambda(0)(b) -> J / psi p pi(-) decay",
journal="Journal of High Energy Physics",
year="2014",
publisher="Springer",
volume="07",
number="7",
pages="103--19pp",
optkeywords="B physics; CP violation; Branching fraction; Flavor physics; Hadron-Hadron Scattering",
abstract="The first observation of the Cabibbo-suppressed decay Lambda(0)(b) -> J / psi p pi(-) is reported using a data sample of proton-proton collisions at 7 and 8TeV, corresponding to an integrated luminosity of 3 fb(-1). A prominent signal is observed and the branching fraction relative to the decay mode Lambda(0)(b) -> J / psi pK(-) is determined to be B(Lambda(0)(b) -> J / psi p pi(-))/ B(Lambda(0)(b) -> J / psi pK(-)) = 0.0824 +/- 0.0025 (stat) +/- 0.0042 (syst). A search for direct CP violation is performed. The difference in the CP asymmetries between these two decays is found to be ACP(Lambda(0)(b) -> J / psi p pi(-))/ A(CP)(Lambda(0)(b) -> J / psi pK(-)) = (+5.7 +/- 2.4 (stat) +/- 1.2 (syst)){\%}, which is compatible with CP symmetry at the 2.2 sigma level.",
optnote="WOS:000346567700001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2058), last updated on Thu, 15 Jan 2015 11:50:41 +0000",
issn="1029-8479",
doi="10.1007/JHEP07(2014)103",
opturl="http://arxiv.org/abs/1406.0755",
opturl="https://doi.org/10.1007/JHEP07(2014)103",
archivePrefix="arXiv",
eprint="1406.0755",
language="English"
}