Nonequilibrium Weak Processes in Kaon Condensation I --- Reaction rate for the thermal kaon process ---

Details Nonequilibrium Weak Processes in Kaon Condensation I --- Reaction rate for the thermal kaon process --- Nonequilibrium Weak Processes in Kaon Condensation I --- Reaction rate for the thermal kaon process ---

1999-06-09

arxiv.org/abs/nucl-th/9906024v1

Phys.Rev. D61 (2000) 063001

Physics

Nuclear Physics

Nuclear Theory

31 pages,incl.10 eps figures,RevTeX

Scientific paper

10.1103/PhysRevD.61.063001

We investigate the thermal kaon process,in which kaons are thermally produced via nucleon-nucleon collisions.This process is relevant to nonequilibrium dynamics of kaon condensation inside neutron stars.The reaction rates for these processes are calculated, and their temperature and density dependences are compared with those of other reaction rates.It is shown that the thermal kaon process is dominant over other relevant weak reactions throughout the nonequilibrium process, such as the kaon-induced Urca and the modified Urca reactions, and may control the entire evolution of the kaon condensate. The characteristic role of the soft and hard kaons during the evolution is explained, and implications for astrophysical phenomena are briefly discussed.

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