In-Medium K+ and K- Production and K- Condensation in Supernova Matter

Details In-Medium K+ and K- Production and K- Condensation in Supernova Matter In-Medium K+ and K- Production and K- Condensation in Supernova Matter

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004chphl..21..817g&link_type=abstract

Chinese Physics Letters, Volume 21, Issue 5, pp. 817-820 (2004).

Physics

1

Scientific paper

In-medium effects and neutrino trapping on K+ and K- production and K- condensation in supernova matter are investigated in a chiral hadronic model. Our results show that neutrino trapping shifts the critical density for K- condensation to higher density, the Q values for K+ and K- production are not sensitive to neutrino trapping, in-medium effects decrease the Q values for NNrightarrowNNK+K- and LambdaNrightarrowNNK- and increase those for NNrightarrowNLambdaK+, K-prightarrowLambdapi0 and K-nrightarrowLambdapi- as the density of supernova matter increases. Moreover, it is shown that neutrino trapping decreases the maximum masses of protoneutron stars compared with the neutrino-free case.

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