%0 Journal Article %T First observation of the decay B-s(0) -> (KSK)-K-0*(892)(0) at LHCb %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 01 %N 1 %I Springer %@ 1029-8479 %G English %F LHCbCollaborationAaij_etal2016 %O WOS:000367748000001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2517), last updated on Thu, 28 Jul 2016 11:39:22 +0000 %X A search for B-(s)(0) -> K-S (0) K*(892)(0) decays is performed using pp collision data, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector at a centre-of-mass energy of 7 TeV. The B-s (0) -> (KSK)-K-0*(892)(0) decay is observed for the first time, with a significance of 7.1 standard deviations. The branching fraction is measured to be B(B-s(0) -> (K) over bar K-0*(892)(0)) + B(B-s(0) -> K-0(K) over bar*(892)(0)) = (16.4 +/- 3.4 +/- 2.3) x10(-6), where the first uncertainty is statistical and the second is systematic. No evidence is found for the decay B-0 ->(KSK)-K-0*(892)(0) and an upper limit is set on the branching fraction, B(B-0 -> (K) over bar K-0*(892)(0)) + B(B-0 -> K-0(K) over bar*(892)(0)) < 0.96 x 10(-6) , at 90 % confidence level. All results are consistent with Standard Model predictions. %K Hadron-Hadron scattering %K B physics %R 10.1007/JHEP01(2016)012 %U http://arxiv.org/abs/1506.08634 %U https://doi.org/10.1007/JHEP01(2016)012 %P 012-17pp