Stellar energy loss rates in the pair-annihilation process beyond the standard model

M. A. Hernández-Ruíz, A. Gutiérrez-Rodríguez, A. González-Sánchez

We calculate the stellar energy loss due to neutrino-pair production in $e^{+}{e}^{-}$ annihilation in the context of a 331 model, a left-right symmetric model and a simplest little Higg…