Model-independent sensibility studies for the anomalous dipole moments of the $ν_τ$ at the CLIC based $γe^-$ colliders

Abstract

To improve the theoretical prediction of the anomalous dipole moments of the $τ$-neutrino, we have carried out a study through the process $γe^- \to τ\barν_τν_e$, which represents an excellent and useful option in determination of these anomalous parameters. To study the potential of the process $γe^- \to τ\barν_τν_e$, we apply a future high-energy and high-luminosity linear electron-positron collider, such as the CLIC, with $\sqrt{s}=380, 1500, 3000\hspace{0.8mm}GeV$ and ${\cal L}=10, 50, 100, 200, 500, 1000, 1500, 2000, 3000\hspace{0.8mm}fb^{-1}$, and we consider systematic uncertainties of $δ_{sys}=0, 5, 10\%$. With these elements, we present a comprehensive and detailed sensitivity study on the total cross-section of the process $γe^- \to τ\barν_τν_e$, as well as on the dipole moments $μ_{ν_τ}$ and $d_{ν_τ}$ at the $95\%$ C.L., showing the feasibility of such process at the CLIC at the $γe^-$ mode with unpolarized and polarized electron beams.