Neutrino energy loss by electron capture on strongly screened iron group nuclei |
| |
| Authors: | Liu Jing-Jing and Luo Zhi-Quan |
| |
| Affiliation: | Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China |
| |
| Abstract: | The influences on the neutrino energy loss rates in iron group nucleiat the same density are investigated in the presence of strongelectron screening and in the absence of electron screening. Theresults show that at a temperature of $15ti10^9$,K, the neutrinoenergy loss rates which come from the electron capture process formost iron group nuclei decrease no more than 2 orders of magnitudebut for the others (such as $^{53,55,56,57,58,59,60}$Co,$^{56,59}$Ni) they can decrease about 3 orders of magnitude due tostrong electron screening (SES), whereas, at a temperature of $10^9K$the neutrino energy loss rates of the most iron group nuclei can bediminished greatly due to the SES. For example, $^{61}$Fe, $^{60}$Fe,and $^{62}$Ni the neutrino energy loss rates decrease about 4, 15 and16 orders of magnitude and for $^{57}$Cr, $^{58}$Cr, and $^{60}$Crdecrease about 18, 12, and 10 orders of magnitude respectively.According to our calculations the neutrino energy loss rates ofnuclei $^{58}$Mn, $^{59}$Mn, $^{60}$Mn, and $^{62}$Mn may decreaseabout 13 orders of magnitude at a temperature of $10^9$,K due to theSES. |
| |
| Keywords: | neutrino energy loss strongelectron screening electron capture |
|
| 点击此处可从《中国物理》浏览原始摘要信息 |
|
点击此处可从《中国物理》下载免费的PDF全文 |
|
