2008/06/30 by A. Mason, R. Chatterjee, L. Fortunato +1 · 1 citation
Physics and Astronomy · #Dipole #Isobar #Magnetic dipole #Magnetic field #Magnetic moment #Nuclear physics research studies #Pulsars and Gravitational Waves Research #Quadrupole #Quadrupole magnet #Quantum Chromodynamics and Particle Interactions #Radiative transfer #nucl-th
paper · pdf · doi:10.1140/epja/i2008-10685-3
published as Eur.Phys.J.A39:107-116,2009 · Accepted in EPJA
arxiv created 2008/11/11 · openalex publication_date 2008/12/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Mirror isobars 7Li and 7Be are investigated in a dicluster model. The magnetic dipole moments and the magnetic dipole response to the continuum are calculated in this framework. The magnetic contribution is found to be small with respect to electric dipole and quadrupole excitations even at astrophysical energies, at a variance with the case of deuteron. Energy weighted molecular sum rules are evaluated and a formula for the molecular magnetic dipole sum rule is found which matches the numerical calculations. Cross-sections for photo-dissociation and radiative capture as well as the S-factor for reactions of astrophysical significance are calculated with good agreement with known experimental data.