科研之友
微信
新浪微博
Facebook
分享链接
摘要
The effect of quark color-superconductivity on the reactions rate and emissivity of non-equilibrium beta processes is investigated. We calculate the implied reduction factors for the direct Urca processes, with three flavors of quarks all pairing with the same gap. The numerical results show that the color-superconductivity dramatically suppress the Durca reaction rate and emissivity, and the reduction is also related to the chemical departure from beta equilibrium. For small chemical departure, the reduction factor almost only depends on the gap. Until the departure reaches a certain value, it enhances the reaction rate and emissivity rapidly. Furthermore, the chemical departure may be the cause of the breaking of quark Cooper pairs formed between different flavors of quarks. These results may be used in the cooling simulation of neutron stars, which contain a color-superconductivity quark core in the non-equilibrium state.
