Bremsstrahlung neutrino energy loss for 24Mg, 28Si, 32S, 40Ca, 56Fe in strong electron screening

LIU Jing-Jing

doi:10.1088/1674-1137/34/2/003

Chinese Physics C> 2010, Vol. 34> Issue(2) : 171-176 DOI: 10.1088/1674-1137/34/2/003

Bremsstrahlung neutrino energy loss for ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca, ⁵⁶Fe in strong electron screening

LIU Jing-Jing ^,

Department of Physics, University of Qiongzhou, Sanya 572022, China

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Abstract：
Based on Weinberg-Salam theory the bremsstrahlung neutrino energy loss for nuclei ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca and ⁵⁶Fe are investigated in strong electron screening. Our results are compared with those of Dicus' and show that the latter are higher by 2 orders of magnitude in the density-temperature region of 10⁸ g/cm³≤ρ/μ_e≤10¹¹ g/cm³ and 2.5≤T₉≤4.5. On the other hand, the factor C shows that the maximum differences are 99.16%, 99.13%, 99.12%, 99.055%, 99.040% corresponding to the nuclei ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca and ⁵⁶Fe.

References

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. Gamow G, Schonberg M. Phys. Rev., 1941, 59: 5392. LIU J J, LUO Z Q., LIU H L, LAI X J. International Jour-nal of Modern Physics A, 2007, 22: 33053. LIU J J, LUO Z Q. Chinese Physics, 2007, 16: 36244. LIU J J, LUO Z Q. Chinese Physics C, 2008, 32: 1085. LIU J J, LUO Z Q. China Phys. Lett., 2007, 24: 18616. LIU J J. Chinese Physics C, 2009, 33: 157. Beaudet G, Petrosian V, Salpeter E E. Astrophys. J., 1967,150: 9798. Feynman R P, Gell-Mann M. Phys. Rev., 1958, 109: 1939. Weinberg S. Phys. Rev. Lett., 1967, 19: 126410. Dicus D A. Phys. Rev. D, 1972, 6: 94111. Flowers E. Astrophys. J., 1973, 180: 91112. Haensel P, Kaminker A D, Yakovlev D G. Astron. Astro-phys., 1996, 314: 32813. Itoh N, Adachi T, Nakagawa M, Kohyama Y, Munakata H.Astrophys. J., 1989, 339: 35414. Itoh N, Hayashi H, Nishikawa A, Kohyama Y. Astrophys.J., 1996, 102: 41115. Dicus D A, Kolb E W, Schramm D N, Tubbs D L. Astro-phys. J., 1976, 210: 481

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LIU Jing-Jing. Bremsstrahlung neutrino energy loss for ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca, ⁵⁶Fe in strong electron screening[J]. Chinese Physics C, 2010, 34(2): 171-176. doi: 10.1088/1674-1137/34/2/003

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Received: 2008-12-26
Revised: 2009-06-22

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沈阳化工大学材料科学与工程学院沈阳 110142

Bremsstrahlung neutrino energy loss for ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca, ⁵⁶Fe in strong electron screening

LIU Jing-Jing ^,

Corresponding author: LIU Jing-Jing,

Department of Physics, University of Qiongzhou, Sanya 572022, China

Received Date: 2008-12-26
Accepted Date: 2009-06-22
Available Online: 2010-02-05

Abstract:

Based on Weinberg-Salam theory the bremsstrahlung neutrino energy loss for nuclei ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca and ⁵⁶Fe are investigated in strong electron screening. Our results are compared with those of Dicus' and show that the latter are higher by 2 orders of magnitude in the density-temperature region of 10⁸ g/cm³≤ρ/μ_e≤10¹¹ g/cm³ and 2.5≤T₉≤4.5. On the other hand, the factor C shows that the maximum differences are 99.16%, 99.13%, 99.12%, 99.055%, 99.040% corresponding to the nuclei ²⁴Mg, ²⁸Si, ³²S, ⁴⁰Ca and ⁵⁶Fe.