Influence of A Hyperons ^1S0 Superfluidity on the Direct Urca Processes with Hyperons

摘要

In the framework of the relativistic mean field theory （RMFT）,the relativistic energy losses of the directUrca processes with hyperons （Y-DURCA） for reactions A → p+e + ve and （?） → A + e + ve are studied in neutron stars.We calculate the energy gap of A hyperons and investigate the effects of the 1S0 superfluidity （SF） of A hyperons on theY-DURCA processes.The calculated results are in line with the recent experimental data ABaa ～ 1.01±0.20-0.11+0.18 MeV.The results indicate that the 1S0 SF of A hyperons exists in most density ranges of happening the two reactions.Thetheoretical cooling curves are in agreement with observation data.