1207.1263 (I. Alikhanov)
I. Alikhanov
Production of single neutrinos as well as neutrino-antineutrino pairs by photons interacting with pseudo Nambu-Goldstone bosons is studied within the Standard Model. The corresponding cross sections are found analytically. The energy loss due to neutrino emission in a thermal plasma of photons and pions (kaons) is calculated and some related implications for astrophysics are discussed. It is shown that the obtained neutrino emissivities may be significantly enhanced in dense matter due to in-medium modification of the total pion decay width.
View original:
http://arxiv.org/abs/1207.1263
No comments:
Post a Comment