Evaluation of the ground-state quadrupole moments of the (sd) nuclei

Lifetime measurements of states of S35 , S36 , Grocutt1, Chapman2, Haas3 et al. 2022Phys. Rev. C4000View full textAdd to dashboardCite

“…The 35 S ground-state quadrupole moment (Q) and nuclear magnetic-dipole moment have been measured. The shell-model values of Q = 5.28 e fm 2 and μ = 0.95 nm are in very good agreement with the experimental values of Q = 4.71(9)e fm 2 [55] and μ = +1.00(4) nm [56].…”

“…In the earlier work [10,58], the quality of the γ -ray spectrum near 1200 keV, where there are several close-lying photopeaks, is considerably better than is the case here. From the measured lifetime of the (6 + ) state, τ = 5.4(26) ps, and the measured branching ratio, I γ ((6 + ) → (4 + ))/I γ ((6 + ) → 5 − ) = 1.84 (55) [10,58], it is possible to calculate the electromagnetic decay properties of the (6 + ) state, which, it is assumed, decays to the (4 + ) state by a pure E 2 transition and to the 5 − state by a pure E 1 transition. The resulting values are B(E 1; (6 + ) → 5 − ) = 1.25(65)×10 −5 e 2 fm 2 [1.78(90)×10 −5 W.u.]…”

High-resolution laser spectroscopy of $^{27-32}$Al

“…The present data provides for the first time an internally consistent set of Al moments determined with respect to a single reference isotope and measured in the same experimental conditions. This avoids potential discrepancies related to the applied shielding corrections or inconsistent electric field gradient calculations present when extracting magnetic and quadrupole moments from (β)-NMR experiments [39,40]. No systematic deviations between our moments and the available literature values were observed.…”

“…Electric quadrupole moments (top) and magnetic dipole moments (bottom) of [27][28][29][30][31][32] Al. Experimental values obtained in this work and found in literature [39,40] are compared to calculations in the VS-IMSRG framework using the EM 1.8/2.0 and NNLOsat chiral interactions.…”

“…Literature values for the other isotopes are re-evaluated with respect to these reference values in Refs. [39,40]. References to the original experimental papers can be found in there.…”