%0 Journal Article
%T First Observation of the Rare Purely Baryonic Decay B0 -> p p-bar
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Valls, P.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Physical Review Letters
%D 2017
%V 119
%N 23
%I Amer Physical Soc
%@ 0031-9007
%G English
%F LHCbCollaborationAaij_etal2017
%O WOS:000416947500004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3409), last updated on Fri, 22 Dec 2017 18:13:45 +0000
%X The first observation of the decay of a B0 meson to a purely baryonic final state, B-0 -> p$(p)over-bar-$ , is reported. The proton-proton collision data sample used was collected with the LHCb experiment at center-of-mass energies of 7 and 8 TeV and corresponds to an integrated luminosity of 3.0 fb(-1). The branching fraction is determined to be B(B-0 -> p$(p)over-bar-$) = (1.25 +/- 0.27 +/- 0.18) x 10(-8), where the first uncertainty is statistical and the second systematic. The decay mode B-0 -> p$(p)over-bar-$ is the rarest decay of the B-0 meson observed to date. The decay B-s(0 )-> p$(p)over-bar-$ is also investigated. No signal is seen and the upper limit B(B-s(0) -> p$(p)over-bar-$) < 1.5 x 10(-8) at 90% confidence level is set on the branching fraction.
%R 10.1103/PhysRevLett.119.232001
%U http://arxiv.org/abs/1709.01156
%U https://doi.org/10.1103/PhysRevLett.119.232001
%P 232001 - 10pp