tensor force
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Symmetry ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2193
Author(s):  
Chao-Feng Chen ◽  
Qi-Bo Chen ◽  
Xian-Rong Zhou ◽  
Yi-Yuan Cheng

The effects of the tensor force on the ground properties of Zr isotopes are studied in the framework of the Skyrme–Hartree–Fock approach. It is found that the tensor force strongly affects the ground state energies and the geometric symmetry properties, in particular for those isotopes near N=60 region. The effects are attributed to the fact that the tensor force enlarges the spin and pseudospin symmetry breaking and therefore results in a ∼2 MeV sub-shell gap between d3/2 and s1/2 single-particle levels.


2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Eunja Ha ◽  
Seonghyun Kim ◽  
Myung-Ki Cheoun ◽  
H. Sagawa

2021 ◽  
Vol 104 (1) ◽  
Author(s):  
G. Co' ◽  
M. Anguiano ◽  
A. M. Lallena
Keyword(s):  

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
B. Dai ◽  
B. S. Hu ◽  
Y. Z. Ma ◽  
J. G. Li ◽  
S. M. Wang ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Zhiheng Wang ◽  
Tomoya Naito ◽  
Haozhao Liang ◽  
Wen Hui Long
Keyword(s):  

2020 ◽  
Vol 1004 ◽  
pp. 122038 ◽  
Author(s):  
Kanhaiya Jha ◽  
Pawan Kumar ◽  
Shahariar Sarkar ◽  
P.K. Raina ◽  
Sezgin Aydin
Keyword(s):  

2020 ◽  
Vol 29 (09) ◽  
pp. 2050069
Author(s):  
Kanhaiya Jha ◽  
Pawan Kumar ◽  
Shahariar Sarkar ◽  
P. K. Raina

In many shell model interactions, the tensor force monopole matrix elements often retain systematic trends originating in the bare tensor force. However, in this work, we find that Isospin [Formula: see text] tensor force monopole matrix elements of widely used p-shell effective interaction CK(8–16) do not share these systematic. We correct these discrepancies by modifying [Formula: see text] tensor force two-body matrix elements (TBMEs) of CK(8–16) by the analytically calculated tensor force TBMEs. With some additional modification of single-particle energies and TBMEs, the revised effective interaction is named as CKN. The effective interaction CKN has been tested for the calculations of p-shell nuclei of normal parity states from various physics viewpoints such as excitation spectra, electromagnetic moments, and electromagnetic and Gamow–Teller (GT) transitions. The obtained results are found to be satisfactory with respect to the experimental results.


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