A systematic study of mirror and triplet energy differences

11th International Spring Seminar on Nuclear Physics: Shell Model and Nuclear Structure – achievements of the past two decades

Lenzi, S.M.^1 ; Lau, R.^1

Department of Physics and Astronomy, University of Padua, INFN, Padua, Italy^1

关键词: Electromagnetic interactions;    Isospin;    Shell models;    Systematic study;    Triplet energy differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/580/1/012028/pdf
DOI  :  10.1088/1742-6596/580/1/012028

来源: IOP

【 摘 要 】

Differences of excitation energy among analogue states in a broad mass range are calculated in the framework of the shell model by introducing isospin breaking interactions. Mirror and triplet energy differences along the N=Z line from mass A ∼ 20 to A ∼ 60 have been systematically studied using the same method. It is shown that in all cases an additional term not directly associated to the electromagnetic interaction is needed to reproduce the experimental data.