2019/10/11 by Tomohiro Oishi, Oishi, Tomohiro, Goran Kruzic +5
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced NMR Techniques and Applications #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Nuclear physics research studies #astro-ph.HE #nucl-ex #nucl-th
paper · pdf · doi:10.48550/arxiv.1910.05349
6 pages, 2 figures, 1 table, contribution to the conference proceedings for INPC 2019 in Glasgow, UK (29th July - 2nd August, 2019)
arxiv created 2019/10/11 · openalex publication_date 2019/10/11 · arxiv updated 2019/10/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Magnetic-dipole (M1) excitations of 18O and 42Ca nuclei are investigated within a relativistic nuclear energy density functional framework. In our last work \cite2019OP, these nuclei are found to have unique M1 excitation and its sum rule, because of their characteristic structure: the system consists of the shell-closure core plus two neutrons. For a more systematic investigation of the M1 mode, we have implemented a framework based on the relativistic nuclear energy density functional (RNEDF). For benchmark, we have performed the RNEDF calculations combined with the random-phase approximation (RPA). We evaluate the M1 excitation of 18O and 42Ca, whose sum-rule value (SRV) of the M1 transitions can be useful to test the computational implementation \cite2019OP. We also apply this RNEDF method to 208Pb, whose M1 property has been precisely measured \cite1979Holt,1987Koehler,1988Laszewski,2016Birkhan. Up to the level of the M1 sum rule, our result is in agreement with the experiments, except the discrepancy related with the quenching factors for g coefficients.