English

Modification of tensor force in \textit{p}-shell effective interaction

Nuclear Theory 2020-12-30 v1

Abstract

In many shell model interactions, the tensor force monopole matrix elements often retain systematic trends originating in the bare tensor force. However, in the present work, we find that Isospin T = 0 tensor force monopole matrix elements of \textit{p}-shell effective interaction CK(8-16) do not share these systematic. We correct these discrepancies by modifying T = 0 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 \textit{p}-shell nuclei of normal parity states from various physics viewpoints such as excitation spectra, electromagnetic moments, and electromagnetic and \textit{G}amow-\textit{T}eller (\textit{GT}) transitions. The obtained results are found to be satisfactory.

Keywords

Cite

@article{arxiv.2006.00889,
  title  = {Modification of tensor force in \textit{p}-shell effective interaction},
  author = {Kanhaiya Jha and Pawan Kumar and Shahariar Sarkar and P. K. Raina},
  journal= {arXiv preprint arXiv:2006.00889},
  year   = {2020}
}

Comments

21 pages, 10 figures, 6 tables

R2 v1 2026-06-23T15:57:36.411Z