On the search for muonic photons in neutrino experiments

Details On the search for muonic photons in neutrino experiments On the search for muonic photons in neutrino experiments

1997-07-26

arxiv.org/abs/hep-ph/9707479v1

Nucl.Phys. B525 (1998) 51-72

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex, 14 figures, LaTEX, PS file and figures in EPS format available at http://marwww.in2p3.fr/leptop/mugamma/mugam

Scientific paper

10.1016/S0550-3213(98)00247-8

Conserved muonic number may turn out to be a conserved muonic charge, coupled to muonic photons, gamma_mu. Muons and muonic neutrinos would emit gamma_mu's, which might be discovered by analysing the data from the past and future high energy neutrino experiments (like CHARM II, CCFR, CHORUS, NOMAD, etc.). There are two sources of gamma_mu's in these experiments: 1) internal bremsstrahlung in pion and kaon decays into mu and nu_mu, which provide neutrino beams; 2) external bremsstrahlung of muons in the shielding of the neutrino beam. In both cases the gamma_mu's would pass freely through the shielding and produce narrow muonic pairs in the neutrino detectors. These pairs could be distinguished from the trident events nu_mu + Z -> nu_mu + mu^+ + mu^- + Z by their kinematical properties: small p_t of the muon pair, small invariant mass, etc. All the above processes are quantitatively analysed in this paper.

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