Gamma-ray angular distributions in oriented 92Mo produced via the 6Li+89Y reaction were studied in this work. The characteristic γ rays in 92Mo were measured by means of the GALILEO array, which is composed of 25 Compton-suppressed HPGe detectors arranged in a nearly 2π geometry. A detailed analysis of the spin-alignment attenuation factors (α2) for different excited states in 92Mo was performed, by analyzing the measured angular distribution coefficients of several pure-E2 transitions. The relationship between α2 and the spin was established in 92Mo and the 244-keV transition between the 51- and 41+ states resulted to have a E1 + M2 character with a mixing ratio (δ) of -0.05-0.06+0.05, consistent with shell model calculations.
Angular distribution of γ rays emitted by oriented nuclei: the case of 92 Mo formed in the reaction 6 Li+ 89 Y
Mazzocco M.;Testov D.;John P. R.;Valiente-Dobon J. J.;Goasduff A.;Siciliano M.;Galtarossa F.;Recchia F.;Mengoni D.;
2021
Abstract
Gamma-ray angular distributions in oriented 92Mo produced via the 6Li+89Y reaction were studied in this work. The characteristic γ rays in 92Mo were measured by means of the GALILEO array, which is composed of 25 Compton-suppressed HPGe detectors arranged in a nearly 2π geometry. A detailed analysis of the spin-alignment attenuation factors (α2) for different excited states in 92Mo was performed, by analyzing the measured angular distribution coefficients of several pure-E2 transitions. The relationship between α2 and the spin was established in 92Mo and the 244-keV transition between the 51- and 41+ states resulted to have a E1 + M2 character with a mixing ratio (δ) of -0.05-0.06+0.05, consistent with shell model calculations.Pubblicazioni consigliate
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