@article{10272/12063,
year = {2015},
url = {http://hdl.handle.net/10272/12063},
abstract = {We discuss the production of a class of heavy sterile neutrinos νhνh in proto-neutron stars. The neutrinos, of mass around 50 MeV50 MeV, have a negligible mixing with the active species but relatively large dimension-5 electromagnetic couplings. In particular, a magnetic dipole moment μ≈10−6 GeV−1μ≈10−6 GeV−1 implies that they are thermally produced through View the MathML sourcee+e−→ν¯hνh in the early phase of the core collapse, whereas a heavy–light transition moment μtr≈10−8 GeV−1μtr≈10−8 GeV−1 allows their decay νh→νiγνh→νiγ with a lifetime around 10−3 s10−3 s. This type of electromagnetic couplings has been recently proposed to explain the excess of electron-like events in baseline experiments. We show that the production and decay of these heavy neutrinos would transport energy from the central regions of the star to distances d≈400 kmd≈400 km, providing a very efficient mechanism to enhance the supernova shock front and heat the material behind it.},
organization = {We would like to thank T. Fischer and J. Pons for useful discussions.This work has been supported by MINECO of Spain (FPA2013-47836,FIS2012-30926) and Consolider-Ingenio Multidark CSD2009-00064) and by Junta de Andalucía (FQM225,FQM101,3048)},
publisher = {Elsevier},
title = {Production of unstable heavy neutrinos in proto-neutron stars},
doi = {10.1016/j.physletb.2015.10.026},
author = {Albertus Torres, Conrado and Masip, M. and Pérez García, M. A.},
}