The Neutrino Energy Loss by Electron Capture of Nuclides 52,53,54,55,56Fe in Core-Collapse Supernova

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2012,（12）
• 页码范围: 61-64
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/29/12/122301

摘要

Using the shell-model Monte Carlo method and random phase approximation theory,we carry out an estimation on neutrino energy loss (NEL) of 52,53,54,55,56Fe.We find the NEL rates increase greatly at some typical stellar conditions,and even exceed eight orders of magnitude.On the other hand,in order to compare our results of λLJSMMC (which are calculated by using the SMMC method) with those of λLJFFN(which are calculated by using the Fuller-Fowler-Newman (FFN) method),the error factor C,between λLJSMMC and λLJFFN,is discussed and shows that at higher density and temperature,the fit is fairly good for the two results(λLJSMMC and λLJFFN) and the maximum error is ～6.20％.However,the maximum error is ～95.50％ (e.g.53Fe) at lower density and temperature.