Bounds on dipole moments of tau-neutrino from single photon searches in $SU(4{)}_L\times U(1{)}_X$ model at CLIC and ILC energies

Abstract

We investigate the dipole moments of the tau- neutrino at high-energy and high luminosity at linear electron positron colliders, such as CLIC or ILC through the analysis of the reaction $e^{+}{e}^{-}\to \nu \bar{\nu }\gamma$ in the framework of the $SU(4{)}_L\times U(1{)}_X$ model. The limits on dipole moment were obtained for integrated luminosity of $\mathcal{L}$= 500-2000\, fb${}^{-1}$ and center of mass between 0.5 and 3.0 TeV. The estimated limits for the tau-neutrino magnetic and electric dipole moments are improved by 2-3 orders of magnitude and complement previous studies on the dipole moments.

arXiv comment14 pages; 2 figures. arXiv admin note: text overlap with arXiv:1112.0268, arXiv:hep-ph/0605277, arXiv:1706.03635 by other authors

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