THE SEMI-EMPIRICAL ANALYSIS OF NUCLEAR LEVEL DENSITIES

Jin Bing-nian; Lu Zhong-dao; Chen Xing-qu; Wang Shun-jin

Chinese Physics C> 1980, Vol. 4> Issue(2) : 236-240

THE SEMI-EMPIRICAL ANALYSIS OF NUCLEAR LEVEL DENSITIES

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Abstract：
From the viewpoint of the self-consistent field theory of statistical thermody-namics, the shell effects and pairing effects on nuclear level densities and their rela-tions with excitation energies are analyed. On the basis of the above analysis, aSemi-empirical formula of nuclear level density is proposed. Three empirical para-meters are used, and the results for about 200 nuclei are satisfied.

References

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A. Bohr and B. R. Mottlson, Nuclear Structure, Vol. 1.[2] H. A. Bethe, Rev. Mod. Phys., 9(1937), 69.[3] T. D. Newton, Can. J. Phys., 34(1956), 804[4] A. Gilbcrt and A. G. W. Cameron, Can. J. Phys, 43(1965),1446.[5] W. Dilg, W . Schantl and H. Vonach, Nucl. Phys, A217 (1973),269.[6] M. Sano and S. Yamasaki, Progr. Theor. Ply, 29(1963), 397.[7] W. D. Myers and W. J. Swiatecki, Ark. Fys, 36(1967),343;nucl. Phys, 81(1966), 1.[8] S. P. Mughabghab and D. I, Garber, Veutron Cross Sections, Vol. 1. Resonance Parameters.[9] H. Baba, Nucl. Phys., A159(1970), 625.

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Jin Bing-nian, Lu Zhong-dao, Chen Xing-qu and Wang Shun-jin. THE SEMI-EMPIRICAL ANALYSIS OF NUCLEAR LEVEL DENSITIES[J]. Chinese Physics C, 1980, 4(2): 236-240.

Jin Bing-nian, Lu Zhong-dao, Chen Xing-qu and Wang Shun-jin. THE SEMI-EMPIRICAL ANALYSIS OF NUCLEAR LEVEL DENSITIES[J]. Chinese Physics C, 1980, 4(2): 236-240. shu

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Received: 1978-09-18
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

THE SEMI-EMPIRICAL ANALYSIS OF NUCLEAR LEVEL DENSITIES

Received Date: 1978-09-18
Accepted Date: 1900-01-01
Available Online: 1980-04-05

Abstract: From the viewpoint of the self-consistent field theory of statistical thermody-namics, the shell effects and pairing effects on nuclear level densities and their rela-tions with excitation energies are analyed. On the basis of the above analysis, aSemi-empirical formula of nuclear level density is proposed. Three empirical para-meters are used, and the results for about 200 nuclei are satisfied.