Hernández Ruíz, María de los Angeles; Gutiérrez Rodríguez, Alejandro; González Sánchez, Alejandro
Resumen:
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 Higgs model in a way that can be
used in supernova calculations. We also present some simple estimates which show that such process can
act as an efficient energy loss mechanism in the shocked supernova core. We find that the stellar energy
loss is almost independent of the parameters of the models in the allowed range for these parameters. This
work complements other studies on the stellar energy loss rate in e+ e− annihilation.