%0 Journal Article
%T Observation of Lambda(0)(b) -> psi (2S)pK(-) and Lambda(0)(b) -> J/psi pi(+)pi(-)pK(-) decays and a measurement of the A(b)(0) baryon mass
%A LHCb Collaboration (Aaij, R. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Ruiz Valls, P.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2016
%V 05
%N 5
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2016
%O WOS:000377450500002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2722), last updated on Thu, 30 Jun 2016 18:07:15 +0000
%X The decays Lambda(0)(b) -> psi(2S)pK(-) and Lambda(0)(b) -> J/psi pi(+)pi(-)pK(-) are observed in a data sample corresponding to an integrated luminosity of 3 fb(-1), collected in proton-proton collisions at 7 and 8 TeV centre-of-mass energies by the LHCb detector. The psi(2S) mesons are reconstructed through the decay modes psi(2S) -> mu(+)mu(-) and psi(2S) -> J/psi pi(+)pi(-) The branching fractions relative to that of Lambda(0)(b) -> J/psi pk(-) are measured to be [GRAPHICS] where the first uncertainties are statistical, the second are systematic and the third is related to the knowledge of J/psi and psi(2S) branching fractions. The mass of the Ai baryon is measured to be M(Lambda(0)(b)) = 5619.65 +/- 0.17 0.17 MeV/c(2), where the uncertainties are statistical and systematic.
%K B physics
%K Flavor physics
%K Hadron-Hadron scattering (experiments)
%K Particle and resonance production
%K Spectroscopy
%R 10.1007/JHEP05(2016)132
%U http://arxiv.org/abs/1603.06961
%U https://doi.org/10.1007/JHEP05(2016)132
%P 132-22pp