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Title: Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions

Abstract

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:
Research Org.:
BROOKHAVEN NATIONAL LABORATORY (BNL)
Sponsoring Org.:
OFFICE OF NUCLEAR ENERGY, SCIENCE, & TECHNOLOGY
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
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

Citation Formats

Bentley, M.A., Pritychenko, B., Paterson,I., Brown,J.R., Taylor,M.J., Digen,C.Aa., Adrich,P., Bazin,D., Cook.J.M., Gade,A., Glasmacher,T., McDaniel,S., Ratkiewicz,A., Siwek,K., D.Weisshaar,D., Pritychenko,B., and Lenzi,S.M. Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions. United States: N. p., 2010. Web. doi:10.1142/S0217732310000575.
Bentley, M.A., Pritychenko, B., Paterson,I., Brown,J.R., Taylor,M.J., Digen,C.Aa., Adrich,P., Bazin,D., Cook.J.M., Gade,A., Glasmacher,T., McDaniel,S., Ratkiewicz,A., Siwek,K., D.Weisshaar,D., Pritychenko,B., & Lenzi,S.M. Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions. United States. doi:10.1142/S0217732310000575.
Bentley, M.A., Pritychenko, B., Paterson,I., Brown,J.R., Taylor,M.J., Digen,C.Aa., Adrich,P., Bazin,D., Cook.J.M., Gade,A., Glasmacher,T., McDaniel,S., Ratkiewicz,A., Siwek,K., D.Weisshaar,D., Pritychenko,B., and Lenzi,S.M. 2010. "Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions". United States. doi:10.1142/S0217732310000575.
@article{osti_1014320,
title = {Isobaric Analogue States Studied in Mirrored Fragmentation and Knockout Reactions},
author = {Bentley, M.A. and Pritychenko, B. and Paterson,I. and Brown,J.R. and Taylor,M.J. and Digen,C.Aa. and Adrich,P. and Bazin,D. and Cook.J.M. and Gade,A. and Glasmacher,T. and McDaniel,S. and Ratkiewicz,A. and Siwek,K. and D.Weisshaar,D. and Pritychenko,B. and Lenzi,S.M.},
abstractNote = {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.},
doi = {10.1142/S0217732310000575},
journal = {Modern Physics Letters A},
number = 21-23,
volume = 25,
place = {United States},
year = 2010,
month = 5
}