TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
PY  - 2017
DA  - 2017//
TI  - Search for B+ -> K+tau(+)tau(-) at the BABAR Experiment
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 031802
EP  - 8pp
VL  - 118
IS  - 3
PB  - Amer Physical Soc
AB  - We search for the rare flavor-changing neutral current process B+ -> K+tau(+)tau(-) using data from the BABAR experiment. The data sample, collected at the center-of-mass energy of the Upsilon(4S) resonance, corresponds to a total integrated luminosity of 424 fb(-1) and to 471 x 10(6) B (B) over bar pairs. We reconstruct one B meson, produced in the Upsilon(4S) -> B+B- decay, in one of many hadronic decay modes and search for activity compatible with a B+ -> K+tau(+)tau(-) decay in the rest of the event. Each tau lepton is required to decay leptonically into an electron or muon and neutrinos. Comparing the expected number of background events with the data sample after applying the selection criteria, we do not find evidence for a signal. The resulting upper limit, at the 90% confidence level, is B(B+ -> K+tau(+)tau(-)) < 2.25 x 10(-3).
SN  - 0031-9007
UR  - http://arxiv.org/abs/1605.09637
UR  - https://doi.org/10.1103/PhysRevLett.118.031802
DO  - 10.1103/PhysRevLett.118.031802
LA  - English
N1  - WOS:000392290200010
ID  - BABARCollaborationLees_etal2017
ER  -