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Stellar Electron-capture Rates Calculated with the Finite-temperature Relativistic Random-phase Approximation by Niu, YiFei; Paar, Nils; Vretenar, Dario; Meng, Jie is a scholarly article available to read on EtoBox.

What is Stellar Electron-capture Rates Calculated with the Finite-temperature Relativistic Random-phase Approximation about?

We introduce a self-consistent microscopic theoretical framework for modelling the process of electron capture on nuclei in stellar environment, based on relativistic energy density functionals. The finite-temperature relativistic mean-field model is used to calculate the single-nucleon basis and the occupation factors in a target nucleus, and $J^{\pi} = 0^{\pm}$, $1^{\pm}$, $2^{\pm}$ charge-exchange transitions are described by the self-consistent finite-temperature relativistic random-phase approximation. Cross sections and rates are calculated for electron capture on 54,56Fe and 76,78Ge in stellar environment, and results compared with predictions of similar and complementary model calculations.

Author

Niu, YiFei; Paar, Nils; Vretenar, Dario; Meng, Jie

Published

2011

Language

EN