Isoscalar, isovector and orbital contributions in $M1$ transitions from analogous $M1$ and Gamow-Teller transitions in $T=\frac{1}{2}$ mirror nuclei

Abstract

The isoscalar and isovector components and their contributions to $M1$ transitions are discussed in the odd-$A$, $T=1/2$ mirror nuclei with mass number ranging from $A=23$ to 37. The orbital contributions in various $M1$ transitions and ground state magnetic moments are calculated by comparing analogous $M1$ and Gamow-Teller transitions between mirror pairs. The orbital contributions in different $M1$ transitions are explained on the basis of configurations of the initial and final states involved. In magnetic moments, the orbital contributions are found to be dependent on the deformation and single-particle nature of the states. All the $T=1/2$ mirror pairs are studied using isospin non-conserving interaction. The results are also compared with predictions from \textit{ab initio} effective interaction derived from realistic nuclear forces.

13 pages, 7 figures

References in corpus (6)

• A nucleus-dependent valence-space approach to nuclear structure
• Ab initio multi-shell valence-space Hamiltonians and the island of inversion
• Isospin-symmetry breaking in superallowed Fermi beta-decay due to isospin-nonconserving forces
• Coulomb excitation of the $\left|T_z\right|=\frac{1}{2}$, $A=23$ mirror pair
• Study of structure and radii for ${}^{20-31}$Na isotopes using microscopic interactions
• Study of S, Cl and Ar isotopes with $N\ge Z$ using microscopic effective $sd$-shell interactions