μ→eγ at a rate of one out of 109 muon decays?

Fritzsch, 1975, Phys. Lett., 59B, 256, 10.1016/0370-2693(75)90040-4

Pontecorvo, 1967, Zh. Eksp. Teor. Fiz., 53, 1712

W. van Doninck et al., Gargamelle results;

T.Y. Ling et al., HPWF-results on inclusive neutrino-hadron neutral current cross sections;

Sulak, 1976, HPWF-results on elastic neutrino-proton scattering

Weinberg, 1967, Phys. Rev. Lett., 19, 1264, 10.1103/PhysRevLett.19.1264

Salam, 1963, Phys. Lett., 31, 49

Feinberg, 1958, Phys. Rev., 110, 1482, 10.1103/PhysRev.110.1482

Primakoff, 1965

Primakoff, 1972, Phys. Rev., D5, 1784

Minkowski, 1971, SIN-report

Pontecorvo, 1967, Zh. Eksp. Teor. Fiz., 53, 1712

1968, Soviet Phys. JETP, 26, 5

Eliezer, 1974, Phys. Rev., D10, 3088

Fritzsch, 1976, Phys. Lett., 62B, 72, 10.1016/0370-2693(76)90051-4

Mohapatra, 1972, Phys. Rev., D6, 2023

Fritzsch, 1975, CALT-68-500

Mohapatra, 1977, BNL-22148

T.P. Cheng and L.F. Li, University of St. Louis preprint 1977;

Bjorken, 1977, SLAC-PUB-1868

F. Wilczek and A. Zee, Princeton preprint (1977).

Pati, 1974, Phys. Rev., D10, 275

Giorgi, 1974, Phys. Rev. Lett., 32, 438, 10.1103/PhysRevLett.32.438

Fritzsch, 1975, Ann. Phys., 93, 193, 10.1016/0003-4916(75)90211-0

1975, Phys. Lett., 56B, 69

S. Weinberg, Harvard University preprint (1976), see also J.D. Bjorken and S. Weinberg, ref. [8].

M. Perl et al., SLAC preprints 1976-76.

Fujikawa, 1972, Phys. Rev., D6, 2923

Halprin, 1976, Phys. Rev., D13, 2567