Application of isochronous mass spectrometry for the study of angular momentum population in projectile fragmentation reactions

X. L. Tu et al.
Phys. Rev. C 95, 014610 – Published 26 January 2017

Abstract

Isochronous mass spectrometry was applied to measure isomeric yield ratios of fragmentation reaction products. This approach is complementary to conventional γ-ray spectroscopy in particular for measuring yield ratios for long-lived isomeric states. Isomeric yield ratios for the high-spin I=19/2 states in the mirror nuclei Fe53 and Co53 are measured to study angular momentum population following the projectile fragmentation of Kr78 at energies of 480A MeV on a beryllium target. The 19/2 state isomeric ratios of Fe53 produced from different projectiles in the literature have also been extracted as a function of mass number difference between projectile and fragment (mass loss). The results are compared to abrabla07 model calculations. The isomeric ratios of Fe53 produced using different projectiles suggest that the theory underestimates not only the previously reported dependence on the spin but also the dependence on the mass loss.

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  • Received 2 September 2016

DOI:https://doi.org/10.1103/PhysRevC.95.014610

©2017 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

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Vol. 95, Iss. 1 — January 2017

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