%0 Journal Article
%T Study of chi(b) meson production in pp collisions at root s=7 and 8 TeV and observation of the decay chi(b) (3P) -> gamma(3S)gamma
%A LHCb Collaboration (Aaij, R. et al
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Ruiz Valls, P.
%A Sanchez Mayordomo, C.
%J European Physical Journal C
%D 2014
%V 74
%N 10
%I Springer
%@ 1434-6044
%G English
%F LHCbCollaborationAaij_etal2014
%O WOS:000346417200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2053), last updated on Thu, 15 Jan 2015 12:45:05 +0000
%X A study of chi(b) meson production at LHCb is performed on proton-proton collision data, corresponding to 3.0 fb(-1) of integrated luminosity collected at centre-of-mass energies root s = 7 and 8 TeV. The fraction of gamma(nS) mesons originating from chi(b) decays is measured as a function of the gamma transverse momentum in the rapidity range 2.0 < y(gamma) < 4.5. The radiative transition of the chi(b) (3P) meson to gamma(3S) is observed for the first time. The chi(b)1 (3P) mass is determined to be m chi(b1) (3P) = 10 511.3 +/- 1.7 +/- 2.5MeV/c(2), where the first uncertainty is statistical and the second is systematic.
%R 10.1140/epjc/s10052-014-3092-z
%U http://arxiv.org/abs/1407.7734
%U https://doi.org/10.1140/epjc/s10052-014-3092-z
%P 3092 - 13pp