Beta decay of nuclide 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V due to strong electron screening in stellar interiors

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LIU Jing-Jing. Beta decay of nuclide 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V due to strong electron screening in stellar interiors[J]. Chinese Physics C, 2010, 34(11): 1700-1703. doi: 10.1088/1674-1137/34/11/006
LIU Jing-Jing. Beta decay of nuclide 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V due to strong electron screening in stellar interiors[J]. Chinese Physics C, 2010, 34(11): 1700-1703.  doi: 10.1088/1674-1137/34/11/006 shu
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Received: 2009-12-22
Revised: 2010-07-20
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Beta decay of nuclide 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V due to strong electron screening in stellar interiors

  • College of Science and Technology, Qiongzhou University, Sanya 572022, China

Abstract: 

According to a new electron screening theory, we discuss the beta decay rates of nuclide 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V with and without strong electron screening (SES). The results show that SES has only a slight effect on the beta decay rates for ρ/μe<10^8 g/cm3. However the beta decay rates would be influenced greatly for ρ/μe≥10^8 g/cm3. Due to SES, the maximum values of the C-factor (in %) on beta decay rates of 56Fe, 56Co, 56Ni, 56Mn, 56Cr and 56V is of the order of 95.03%, 35.02%, 98.05%, 80.33%, 98.30% and 98.71% at T9 =4.0 and 98.83%, 98.89%, 99.65%, 10.32%, 4.10% and 40.21% at T9=7.0, respectively.

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