Article

Search for lepton flavor violation process e+e-→eμ in the energy region s=984-1060MeV and ϕ→eμ decay

Novosibirsk State University, Novo-Nikolaevsk, Novosibirsk, Russia
Physical Review D (Impact Factor: 4.86). 03/2010; 81(5):57102-. DOI: 10.1103/PhysRevD.81.057102
Source: arXiv

ABSTRACT A search for lepton-flavor-violating process
e+e-→eμ in the energy region
s=984-1060MeV with the SND detector at the VEPP-2M
e+e- collider is reported. The model independent
90% C.L. upper limits on the e+e-→eμ cross
section, σeμ<8pb, as well as on the corresponding
ϕ→eμ branching fraction,
B(ϕ→eμ)<2×10-6 have been obtained, for
the polar angles 55°<θ<125° of the final particles.

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