Low energy analysis of νn→νNγ in the standard model

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Abstract

The production of single photons in low energy (∼1GeV) neutrino scattering off nucleons is analyzed in the standard model. At very low energies, Eν GeV, a simple description of the chiral Lagrangian involving baryons and arbitrary SU(2)L×U(1)Y gauge fields is developed. Extrapolation of the process into the ∼1-2GeV 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 νμ→νe is discussed. In particular, single photons are a plausible explanation for excess events observed by the MiniBooNE experiment.

Original languageEnglish
Article number013008
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume81
Issue number1
DOIs
StatePublished - Jan 29 2010

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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