Neutrino dipole moments and charge radii in non-commutative space-time
Theory Division, CERN, 1211, Geneva 23, Switzerland
2 Institute for Theoretical Physics, University of Bern, 3012, Bern, Switzerland
3 International University Bremen, Campus Ring 8, 28759, Bremen, Germany
4 Theoretical Physics Division, Rudjer Bošković Institute, Zagreb, Croatia
5 Theoretische Physik, Universität München, Theresienstr. 37, 80333, München, Germany
In this paper we obtain a bound TeV on the scale of space-time non-commutativity considering photon-neutrino interactions. We compute “*-dipole moments” and “*-charge radii” originating from space-time non-commutativity and compare them with the dipole moments calculated in the neutrino-mass extended standard model (SM). The computation depends on the nature of the neutrinos, Dirac versus Majorana, their mass and the energy scale. We focus on Majorana neutrinos. The “*-charge radius” is found to be at TeV.
© Springer-Verlag, 2004