Tensor Coupling in Modified Derivative Scalar Coupling Model

GUO Hua

Chinese Physics C> 2000, Vol. 24> Issue(12) : 1157-1164

Tensor Coupling in Modified Derivative Scalar Coupling Model

GUO Hua ^,

Department of Technical Physics, and Institute of Heavy Ion Physics, Peking University, Beijing 100871, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

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Abstract：
The tensor coupling of the ω meson to nucleon in modified derivative scalar coupling (MDSC) model for finite nuclei was investigated. In addition to the spin-orbit splittings improved by the tensor coupling, our results show that the tensor force (or the effect of the tensor coupling) shows attractive in the interior of nuclei, and then becomes repulsive in the surface region. As a result, the single-particle states are more bound for very deeplying orbits, and less bound for those very near the Fermi energies.

References

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Zimanyi J, Moszkowski S. Phys. Rev., 1990, C42:1416–14222 Delfino A, Coelho C T, Malheiro M. Phys. Lett., 1995 B345:361–3663 Malheiro M, Delfino A, Chelho C T. Phys. Rev., 1998, C58:426–4334 Serot B D, Walecka J D. Adv. Nucl. Phys., 1986, 16: 1–321;Serot B D, Walecka J D. Int. J. Mod. Phys., 1997,E6: 515–6315 Nemeth J, Papp G, Feldmeier H. Nucl. Phys., 1999,A647: 107–1376 Koepf W, Sharma M M, Ring P. Nucl. Phys., 1991, A533:95–105 7 Chiapparini M, Delfino A, Malheiro M, Gattone A. Z. Phys., 1997, A357:47–52 8 Bir#243; T S, Zimanyi J. Phys. Lett., 1997, B391: 1–4 9 GUO H. High Energy Phys. and Nucl. Phys. (in Chinese), 2000,24(11): 1030(郭华.高能物理与核物理,2000,24(11):1030)10 GUO H, Chossy T V, Stocker W. Phys. Rev., 2000 C61:014307 – 1–014307 – 8 11 Ring P. Prog. Part. Nucl. Phys., 1996 37: 193–263

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GUO Hua. Tensor Coupling in Modified Derivative Scalar Coupling Model[J]. Chinese Physics C, 2000, 24(12): 1157-1164.

GUO Hua. Tensor Coupling in Modified Derivative Scalar Coupling Model[J]. Chinese Physics C, 2000, 24(12): 1157-1164. shu

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Received: 1999-10-27
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

Tensor Coupling in Modified Derivative Scalar Coupling Model

GUO Hua ^,

Corresponding author: GUO Hua,

Department of Technical Physics, and Institute of Heavy Ion Physics, Peking University, Beijing 100871, China2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China

Received Date: 1999-10-27
Accepted Date: 1900-01-01
Available Online: 2000-12-05

Abstract: The tensor coupling of the ω meson to nucleon in modified derivative scalar coupling (MDSC) model for finite nuclei was investigated. In addition to the spin-orbit splittings improved by the tensor coupling, our results show that the tensor force (or the effect of the tensor coupling) shows attractive in the interior of nuclei, and then becomes repulsive in the surface region. As a result, the single-particle states are more bound for very deeplying orbits, and less bound for those very near the Fermi energies.