Photon-neutrino interaction in theta-exact covariant noncommutative field theory
Abstract
Photon-neutrino interactions arise quite naturally in noncommutative field theories. Such couplings are absent in ordinary field theory and imply experimental lower bounds on the energy scale Lambda_NC ~ 1/|theta|^2 of noncommutativity. Using non-perturbative methods and a Seiberg-Witten map based covariant approach to noncommutative gauge theory, we obtain theta-exact expressions for the interactions, thereby eliminating previous restrictions to low-energy phenomena. We discuss implications for plasmon decay, neutrino charge radii, big bang nucleosynthesis and ultrahigh energy cosmic rays. Our results behave reasonably throughout all interaction energy scales, thus facilitating further phenomenological applications.
Keywords
Cite
@article{arxiv.1103.3383,
title = {Photon-neutrino interaction in theta-exact covariant noncommutative field theory},
author = {R. Horvat and D. Kekez and P. Schupp and J. Trampetic and J. You},
journal= {arXiv preprint arXiv:1103.3383},
year = {2011}
}
Comments
using revtex4, 10 pages, 2 eps figure, text slightly expanded,references added, some typos fixed