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 Vidal, J.
AU  - Sanchez Mayordomo, C.
PY  - 2018
DA  - 2018//
TI  - Evidence for the decay B-s(0) -> (K)over-bar(*0) mu(+)mu(-)
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 020
EP  - 24pp
VL  - 07
IS  - 7
PB  - Springer
KW  - B physics
KW  - FCNC Interaction
KW  - Flavor physics
KW  - Hadron-Hadron scattering (experiments)
KW  - Rare decay
AB  - A search for the decay B-s(0) -> (K) over bar (*0) mu(+) mu(-) is presented using data sets corresponding to 1.0, 2.0 and 1.6 fb(-1) of integrated luminosity collected during pp collisions with the LHCb experiment at centre-of-mass energies of 7, 8 and 13TeV, respectively. An excess is found over the background-only hypothesis with a significance of 3.4 standard deviations. The branching fraction of the B-s(0) -> (K) over bar (*0) mu(+) mu(-) decay is determined to be B(B-s(0) -> (K) over bar (*0) mu(+) mu(-)) = [2.9 +/- 1.0 (stat) +/- 0.2 (syst) +/- 0.3 (norm)] x 10(-8), where the first and second uncertainties are statistical and systematic, respectively. The third uncertainty is due to limited knowledge of external parameters used to normalise the branching fraction measurement.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1804.07167
UR  - https://doi.org/10.1007/JHEP07(2018)020
DO  - 10.1007/JHEP07(2018)020
LA  - English
N1  - WOS:000438135900001
ID  - LHCbCollaborationAaij_etal2018
ER  -