Spin–orbit splitting and the tensor component of the Skyrme interaction

作者: G Colo , H Sagawa , S Fracasso , PF Bortignon

DOI: 10.1016/J.PHYSLETB.2007.01.033

关键词: Spin (physics)Charge (physics)PhysicsBinding energyQuantum electrodynamicsTensorNuclear theoryComponent (thermodynamics)IsospinOrbit (control theory)

摘要: Abstract We study the role of tensor term Skyrme effective interactions on spin–orbit splittings in N = 82 isotones and Z 50 isotopes. The different triplet-even triplet-odd forces is pointed out by analyzing these nuclei. experimental isospin dependence cannot be described Hartree–Fock calculations employing usual parametrizations, but very well accounted for when interaction introduced. capability to reproduce binding energies charge radii heavy nuclei not destroyed introduction term. Finally, we also discuss effect force centroid Gamow–Teller states.

参考文章(28)
N. Paar, D. Vretenar, D. Vretenar, G.A. Lalazissis, G.A. Lalazissis, P. Ring, Collectivity of the low-lying dipole strength in relativistic random phase approximation Nuclear Physics. ,vol. 692, pp. 496- 517 ,(2001) , 10.1016/S0375-9474(01)00653-4
Fl. Stancu, D.M. Brink, H. Flocard, The tensor part of Skyrme's interaction Physics Letters B. ,vol. 68, pp. 108- 112 ,(1977) , 10.1016/0370-2693(77)90178-2
Isao Tanihata, Neutron halo nuclei Journal of Physics G. ,vol. 22, pp. 157- 198 ,(1996) , 10.1088/0954-3899/22/2/004
E. Chabanat, P. Bonche, P. Haensel, J. Meyer, R. Schaeffer, A Skyrme parametrization from subnuclear to neutron star densities Part II. Nuclei far from stabilities Nuclear Physics. ,vol. 635, pp. 231- 256 ,(1998) , 10.1016/S0375-9474(98)00180-8
P Adrich, A Klimkiewicz, Muriel Fallot, K Boretzky, T Aumann, D Cortina-Gil, U Datta Pramanik, Th W Elze, H Emling, H Geissel, M Hellström, KL Jones, JV Kratz, R Kulessa, Y Leifels, C Nociforo, R Palit, H Simon, G Surówka, K Sümmerer, W Waluś, (LAND-FRS Collaboration), Evidence for Pygmy and Giant Dipole Resonances in Sn 130 and Sn 132 Physical Review Letters. ,vol. 95, pp. 132501- ,(2005) , 10.1103/PHYSREVLETT.95.132501
Keh-Fei Liu, Hongde Luo, Zhongyu Ma, Qingbiao Shen, Skyrme-Landau parameterization of effective interactions Nuclear Physics. ,vol. 534, pp. 25- 47 ,(1991) , 10.1016/0375-9474(91)90556-L
H. Grawe, M. Lewitowicz, Shell structure of nuclei far from stability Nuclear Physics. ,vol. 693, pp. 116- 132 ,(2001) , 10.1016/S0375-9474(01)01138-1
P. G Hansen, B Jonson, The Neutron Halo of Extremely Neutron-Rich Nuclei EPL. ,vol. 4, pp. 409- 414 ,(1987) , 10.1209/0295-5075/4/4/005
T.H.R. Skyrme, The effective nuclear potential Nuclear Physics. ,vol. 9, pp. 615- 634 ,(1958) , 10.1016/0029-5582(58)90345-6