Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions
A Gamma-ray spectroscopic study of excited states of isobaric multiplets has been performed in recent years, with a view to gaining a quantitative understanding of energy differences between excited states in terms of a range of Coulomb and other isospin breaking phenomena. Recently, the experimental programme has been augmented by a study of isobaric analogue states of mirror nuclei populated in mirrored fragmentation reactions. In this presentation, recent results on the T = 3/2 analogue states in the T{sub z} = {+-} 3/2 mirror pair {sup 53}Ni/{sup 53}Mn will be summarised. In this work, further strong evidence is found for the need to include an anomalous isospin-breaking two-body matrix element for angular-momentum couplings of J = 2, in addition the expected Coulomb contribution, in order to account for the experimental data.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- OFFICE OF NUCLEAR ENERGY, SCIENCE, & TECHNOLOGY
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1014320
- Report Number(s):
- BNL-94241-2010-JA; MPLAEQ; R&D Project: EST-003-NEFA; KB0301041; TRN: US1102723
- Journal Information:
- Modern Physics Letters A, Vol. 25, Issue 21-23; ISSN 0217-7323
- Country of Publication:
- United States
- Language:
- English
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