TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Garcia Martin, L. M.
AU  - Henry, L.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2017
DA  - 2017//
TI  - Improved limit on the branching fraction of the rare decay K-S(0) -> mu(+)mu(-)
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 678 - 12pp
VL  - 77
IS  - 10
PB  - Springer
AB  - 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.
SN  - 1434-6044
UR  - http://arxiv.org/abs/1706.00758
UR  - https://doi.org/10.1140/epjc/s10052-017-5230-x
DO  - 10.1140/epjc/s10052-017-5230-x
LA  - English
N1  - WOS:000412907600003
ID  - LHCbCollaborationAaij_etal2017
ER  -