24–31 Jul 2009
Wayne State University
US/Eastern timezone

Low energy analysis of nu N --> nu N gamma in the Standard Model

28 Jul 2009, 17:10
15m
McGregor Center, Room J

McGregor Center, Room J

Wayne State University
Neutrino Physics Neutrino Physics II

Speaker

Richard Hill (University of Chicago)

Description

The production of single photons in low energy (~1 GeV) neutrino scattering off nucleons is analyzed in the Standard Model. At very low energies, E(nu) << 1 GeV, a simple description of the chiral lagrangian involving baryons and arbitrary SU(2)_L x U(1)_Y gauge fields is developed. Extrapolation of the process into the ~1-2 GeV region is treated in a simple phenomenological model. Coherent enhancements in compound nuclei are studied. The relevance of single photon events as a background to experimental searches for nu(mu) --> nu(e) is discussed. In particular, single photons are a plausible explanation for excess events observed by the MiniBooNE experiment.

Author

Richard Hill (University of Chicago)

Presentation materials