%0 Journal Article
%T Measurement of the properties of the Xi(b)(*0) baryon
%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:000376893000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2706), last updated on Thu, 23 Jun 2016 18:22:52 +0000
%X We perform a search for near-threshold I (b) (0) resonances decaying to I (b) (-) pi (+) in a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb(-1) collected by the LHCb experiment. We observe one resonant state, with the following properties: m(Xi b*0) – m (Xi b-) – m (pi+) = 15.727 +/- 0.068 (stat) +/- 0.023 (syst) MeV/c2, Gamma(Xi b*0) = 0.90 +/- 0.16 (stat) +/- 0.08 (syst) MeV. This confirms the previous observation by the CMS collaboration. The state is consistent with the J (P) = 3/2(+)aEuro integral I (b) (au 0) resonance expected in the quark model. This is the most precise determination of the mass and the first measurement of the natural width of this state. We have also measured the ratio sigma(pp -> Xi b*0 X)B(Xi b*0 -> Xi b-pi+)/sigma(pp -> Xi b- X) = 0.28 +/- 0.03 (stat.) +/- 0.01 (syst).
%K Spectroscopy
%K B physics
%K Particle and resonance production
%K Hadron-Hadron scattering (experiments)
%R 10.1007/JHEP05(2016)161
%U http://arxiv.org/abs/1604.03896
%U https://doi.org/10.1007/JHEP05(2016)161
%P 161-19pp