ON PION COOLING IN THE SUPERNOVA CORE

Authors
DUTTA S GOYAL A CHOUDHURY SR
Citation
S. Dutta et al., ON PION COOLING IN THE SUPERNOVA CORE, International journal of modern physics A, 13(6), 1998, pp. 915-921
Citations number
15
Categorie Soggetti
Physics, Particles & Fields","Physics, Nuclear
Journal title
International journal of modern physics A → ACNP
ISSN journal
0217751X
Volume
13
Issue
6
Year of publication
1998
Pages
915 - 921
Database
ISI
SICI code
0217-751X(1998)13:6<915:OPCITS>2.0.ZU;2-E
Abstract
We examine the cooling mechanism of a nascent neutron star core by the emission of wrong helicity neutrinos, when the core is at the verge o f pion condensation. We study the dominant process pi(-) p --> n nu<(n u)over bar>due to neutrino magnetic moment in terms of the model-indep endent multipole amplitudes based on dispersion relation theory. This calculation gives a more realistic emission rate for neutrinos and hen ce an upper bound for neutrino magnetic moment.