Please wait a minute...
Chin. Phys., 2007, Vol. 16(12): 3624-3630    DOI: 10.1088/1009-1963/16/12/012
THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Prev   Next  

Neutrino energy loss by electron capture on strongly screened iron group nuclei

Liu Jing-Jing, Luo Zhi-Quan
Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China
Abstract  The influences on the neutrino energy loss rates in iron group nuclei at the same density are investigated in the presence of strong electron screening and in the absence of electron screening. The results show that at a temperature of $15\ti10^9$\,K, the neutrino energy loss rates which come from the electron capture process for most iron group nuclei decrease no more than 2 orders of magnitude but 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 to strong electron screening (SES), whereas, at a temperature of $10^9K$ the neutrino energy loss rates of the most iron group nuclei can be diminished greatly due to the SES. For example, $^{61}$Fe, $^{60}$Fe, and $^{62}$Ni the neutrino energy loss rates decrease about 4, 15 and 16 orders of magnitude and for $^{57}$Cr, $^{58}$Cr, and $^{60}$Cr decrease about 18, 12, and 10 orders of magnitude respectively. According to our calculations the neutrino energy loss rates of nuclei $^{58}$Mn, $^{59}$Mn, $^{60}$Mn, and $^{62}$Mn may decrease about 13 orders of magnitude at a temperature of $10^9$\,K due to the SES.
Keywords:  neutrino energy loss      strong electron screening      electron capture     
Published:  20 December 2007
PACS:  23.40.-s (β-decay;double β-decay; electron and muon capture)  
  27.40.+z (39 ≤ A ≤ 58)  
  97.10.Cv (Stellar structure, interiors, evolution, nucleosynthesis, ages)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10347008).

Cite this article: 

Liu Jing-Jing, Luo Zhi-Quan Neutrino energy loss by electron capture on strongly screened iron group nuclei 2007 Chin. Phys. 16 3624

[1] Charge transfer in low-energy collisions ofBe3+ and B4+ ions with He
Kun Wang(王堃), Yi-Zhi Qu(屈一至), Chun-Hua Liu(刘春华), Ling Liu(刘玲), Yong Wu(吴勇), H P Liebermann, Robert J. Buenker. Chin. Phys. B, 2020, 29(9): 093401.
[2] Electron capture in collisions of Li3+ ions with ground andexcited states of Li atoms
M X Ma(马茗萱), B H Kou(寇博珩), L Liu(刘玲), Y Wu(吴勇), J G Wang(王建国). Chin. Phys. B, 2020, 29(1): 013401.
[3] Influence of electron correlations on double-capture process in proton helium collisions
Hoda Ghavaminia, Ebrahim Ghanbari-Adivi. Chin. Phys. B, 2015, 24(7): 073401.
[4] Electron capture rates for iron group nuclei at the surface of magnetar
Luo Xia, Du Jun, Li Ping-Ping. Chin. Phys. B, 2013, 22(12): 129701.
[5] Single electron capture in collisions of Nq+ (q=5, 6, 7) ions with helium
Wang Fei, Wang Miao-Miao. Chin. Phys. B, 2011, 20(11): 113402.
[6] Effect of strong magnetic field on chemical potential and electron capture in magnetar
Gao Jie, Luo Zhi-Quan, Liu Wei-Wei, Li Gang. Chin. Phys. B, 2010, 19(9): 099701.
[7] Effect of strong magnetic field on electron capture of iron group nuclei in crusts of neutron stars
Liu Jing-Jing, Luo Zhi-Quan, Liu Hong-Lin, Lai Xiang-Jun. Chin. Phys. B, 2007, 16(9): 2671-2675.
[8] Multiple ionization of argon accompanied by electron loss and capture of 0.22--6.35 MeV Cq+ ions
Chen Lin, Chen Xi-Meng, Shao Jian-Xiong, Lu Yan-Xia, Ding Bao-Wei, Cui Ying, Gao Zhi-Min, Liu Yu-Wen, Du Juan, Xie Jiang-Shan, Sun Guang-Zhi, Liu Zhao-Yuan. Chin. Phys. B, 2007, 16(8): 2378-2383.
[9] Investigation of transfer ionization in collisions of partially stripped carbon ions with helium at low to intermediate velocities
Chen Xi-Meng, Gao Zhi-Min, Liu Zhao-Yuan, Ding Bao-Wei, Lu Yan-Xia, Fu Hong-Bin, Shao Jian-Xiong, Cui Ying, Zhang Hong-Qiang, Liu Yu-Wen, Du Juan, Sun Guang-Zhi. Chin. Phys. B, 2007, 16(7): 2040-2043.
[10] Electron capture in fp shell at presupernova stage
Luo Zhi-Quan, Liu Men-Quan, Lin Li-Bin, Peng Qiu-He. Chin. Phys. B, 2005, 14(6): 1272-1275.
No Suggested Reading articles found!