MODIFICATION OF THE RADIAL SHAPE OF THE REAL PART OF MICROSCOPIC OPTICAL POTENTIAL BY SECOND-ORDER DIAGRAMS

SHEN Qing-Biao; TIAN Ye; ZHUO Yi-Zhong

Chinese Physics C> 1986, Vol. 10> Issue(2) : 231-234

MODIFICATION OF THE RADIAL SHAPE OF THE REAL PART OF MICROSCOPIC OPTICAL POTENTIAL BY SECOND-ORDER DIAGRAMS

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Abstract：
The modification of the radial shape of the real part of the microscopic optical potential by the imaginary part of the off-shell single-particle potential from secondorder diagram contributions is discussed by using the Skyrme interaction SK_a, and by means of the dispersion relation and local density approximation. As an example, the modified values for ⁴⁰Ca at E—E_F≤50MeV are calculated. The calculated results lead to slightly deeper real part of the optical potential. The modification is larger near the neuclear surface at lower energies, and is larger in the nuclear center region at higher energies.

References

[1]

申庆彪、张竟上、田野、卓益忠、高能物理与核物理, (1982), 91,[2] 申庆彪、田野, 马中玉、张竞上、卓益忠, 高能物理与核物理6(1982), 185,[3] 田野、申庆彪、卓益忠, 高能物理与核物理, 6(1982), 616.[4] 申庆彪, 田野、卓益忠, 高能物理与核物理, 7(1983), 618.[5] Shen Qingbiao et al, Nuclear Data for Science and Technology, Proc. Int. Conf., Antwerp, 6-10Sept. 1982, p. 565.[6] 申庆彪, 李祝, 施向军、田野、卓益忠, 高能物理与核物理, 9(1985), 220.[7] J. W. Negele, Phys. Rev., C1 (1970), 1260.[8] J. P. Jeukenne, A. Lejeune and C. Mahaua, Phys. Rev., C16 (1977), 80.

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SHEN Qing-Biao, TIAN Ye and ZHUO Yi-Zhong. MODIFICATION OF THE RADIAL SHAPE OF THE REAL PART OF MICROSCOPIC OPTICAL POTENTIAL BY SECOND-ORDER DIAGRAMS[J]. Chinese Physics C, 1986, 10(2): 231-234.

SHEN Qing-Biao, TIAN Ye and ZHUO Yi-Zhong. MODIFICATION OF THE RADIAL SHAPE OF THE REAL PART OF MICROSCOPIC OPTICAL POTENTIAL BY SECOND-ORDER DIAGRAMS[J]. Chinese Physics C, 1986, 10(2): 231-234. shu

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Received: 1900-01-01
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

MODIFICATION OF THE RADIAL SHAPE OF THE REAL PART OF MICROSCOPIC OPTICAL POTENTIAL BY SECOND-ORDER DIAGRAMS

Corresponding author: SHEN Qing-Biao,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1986-04-05

Abstract: The modification of the radial shape of the real part of the microscopic optical potential by the imaginary part of the off-shell single-particle potential from secondorder diagram contributions is discussed by using the Skyrme interaction SK_a, and by means of the dispersion relation and local density approximation. As an example, the modified values for ⁴⁰Ca at E—E_F≤50MeV are calculated. The calculated results lead to slightly deeper real part of the optical potential. The modification is larger near the neuclear surface at lower energies, and is larger in the nuclear center region at higher energies.