%0 Journal Article %T Improved limit on the branching fraction of the rare decay K-S(0) -> mu(+)mu(-) %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 Sanchez Mayordomo, C. %J European Physical Journal C %D 2017 %V 77 %N 10 %I Springer %@ 1434-6044 %G English %F LHCbCollaborationAaij_etal2017 %O WOS:000412907600003 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3324), last updated on Wed, 25 Oct 2017 12:11:34 +0000 %X A search for the decay K-S(0) -> mu+ mu- is performed, based on a data sample of proton- proton collisions corresponding to an integrated luminosity of 3 fb(-1), collected by the LHCb experiment at centre-of- mass energies of 7 and 8 TeV. The observed yield is consistent with the background- only hypothesis, yielding a limit on the branching fraction of B( K-S(0) -> mu(+)mu(-)) < 0.8 (1.0) x 10(-9) at 90% ( 95%) confidence level. This result improves the previous upper limit on the branching fraction by an order of magnitude. %R 10.1140/epjc/s10052-017-5230-x %U http://arxiv.org/abs/1706.00758 %U https://doi.org/10.1140/epjc/s10052-017-5230-x %P 678 - 12pp