skip to main content

Title: 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.
Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
OSTI Identifier:
1014320
Report Number(s):
BNL--94241-2010-JA
Journal ID: ISSN 0217-7323; MPLAEQ; R&D Project: EST-003-NEFA; KB0301041; TRN: US1102723
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Modern Physics Letters A; Journal Volume: 25; Journal Issue: 21-23
Research Org:
BROOKHAVEN NATIONAL LABORATORY (BNL)
Sponsoring Org:
OFFICE OF NUCLEAR ENERGY, SCIENCE, & TECHNOLOGY
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ANGULAR MOMENTUM; EXCITED STATES; FRAGMENTATION; ISOSPIN; MATRIX ELEMENTS; MIRROR NUCLEI; MIRRORS; MULTIPLETS