학술논문
Search for Lepton Flavor Violation Process e^+e^- \to e\mu in the Energy Region \sqrt{s}=984 -- 1060 MeV and \phi\to e\mu Decay
Document Type
Working Paper
Author
Achasov, M. N.; Beloborodov, K. I.; Bergyugin, A. V.; Bogdanchikov, A. G.; Bukin, A. D.; Bukin, D. A.; Dimova, T. V.; Druzhinin, V. P.; Golubev, V. B.; Koop, I. A.; Korol, A. A.; Koshuba, S. V.; Lysenko, A. P.; Pakhtusova, E. V.; Serednyakov, S. I.; Shatunov, Yu. M .; Silagadze, Z. K.; Skrinsky, A. N.; Vasiljev, A. V.
Source
Phys.Rev.D81:057102,2010
Subject
Language
Abstract
The search for lepton-flavor-violation process e^+e^-\to e\mu in the energy region \sqrt{s}=984 - 1060 MeV with SND detector at VEPP-2M e^+e^- collider is reported. The model independent 90% CL upper limits on the e^+e^-\to e\mu cross section, \sigma_{e\mu} < 11 pb, as well as on the corresponding \phi\to e\mu branching fraction, B(\phi\to e\mu) < 2 \times 10^{-6}, for the final particles polar angles 55^\circ<\theta<125^\circ, were obtained.