2025/05/21 by B. C. Backes, Backes, B. C., J. Dobaczewski +11
Engineering · Physics and Astronomy · #Electromagnetic Compatibility and Measurements #Electromagnetic Scattering and Analysis #FOS: Physical sciences #Nuclear Theory (nucl-th) #Particle accelerators and beam dynamics
paper · doi:10.48550/arxiv.2505.15375
openalex publication_date 2025/05/21 · openalex created_date 2025/10/19 · openalex updated_date 2026/07/30
The dependence of the E2 matrix elements on isospin projection Tz is linked to the conservation of the isospin symmetry. To study this conjecture, we calculated the B(E2: 2+ → 0+) rates for the even-even T=1 mirror nuclei with 42 ≤ A ≤ 98 within nuclear density functional theory, employing the generalized Bohr Hamiltonian, and carrying out angular momentum projection. We demonstrated that collective effects are crucial for describing experimental data near the N=Z line without invoking explicit beyond-Coulomb isospin symmetry-breaking corrections. We also determined the B(E2\downarrow) values for odd-odd Tz=0 nuclei 70Br and 78Y in doubly-blocked configurations. We discussed the requirements for accurately describing isobaric analog states and emphasized how current theoretical results should be interpreted within the study of isospin symmetry across isospin triplets.