Constraint on the axion-electron coupling constant and the neutrino magnetic dipole moment by using the tip-RGB luminosity of fifty globular clusters

Santiago Arceo Díaz, Klaus-Peter Schröder, Kai Zuber +2

The current constraints in the neutrino magnetic dipole moment and axion-electron coupling constant (${\mu }_{\nu }\le 2.2\times 10^{-12}{\mu }_{\mathrm{B}}$ and $\mathrm{α_{ae}\leq0.5\times10^{-2…