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Isospin symmetry at high spin studied via nucleon knockout from isomeric states

Milne, SA, Bentley, MA, Simpson, EC, Baugher, T, Bazin, D, Berryman, JS, Bruce, AM, Davies, PJ, Diget, CA, Gade, A, Henry, TW, Iwasaki, H, Lemasson, A, Lenzi, SM, McDaniel, S, Napoli, DR, Nichols, AJ, Ratkiewicz, A, Scruton, L, Stroberg, SR, Tostevin, JA, Weisshaar, D, Wimmer, K and Winkler, R (2016) Isospin symmetry at high spin studied via nucleon knockout from isomeric states Physical Review Letters, 117 (8), 082502.

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Abstract

One-neutron knockout reactions have been performed on a beam of radioactive 53Co in a high-spin isomeric state. The analysis is shown to yield highly-selective population of high-spin states in an exotic nucleus with a significant cross section, and hence represents a technique that is applicable to the planned new generation of fragmentation-based radioactive beam facilities. Additionally, the relative cross sections among the excited states can be predicted to a high level of accuracy when reliable shell-model input is available. The work has resulted in a new level scheme, up to the 11+ band-termination state, of the proton-rich nucleus 52Co (Z = 27, N = 25). This has in turn enabled a study of mirror energy differences in the A = 52 odd-odd mirror nuclei, interpreted in terms of isospin-non-conserving (INC) forces in nuclei. The analysis demonstrates the importance of using a full set of J-dependent INC terms to explain the experimental observations.

Item Type: Article
Subjects : Physics
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
AuthorsEmailORCID
Milne, SAUNSPECIFIEDUNSPECIFIED
Bentley, MAUNSPECIFIEDUNSPECIFIED
Simpson, ECUNSPECIFIEDUNSPECIFIED
Baugher, TUNSPECIFIEDUNSPECIFIED
Bazin, DUNSPECIFIEDUNSPECIFIED
Berryman, JSUNSPECIFIEDUNSPECIFIED
Bruce, AMUNSPECIFIEDUNSPECIFIED
Davies, PJUNSPECIFIEDUNSPECIFIED
Diget, CAUNSPECIFIEDUNSPECIFIED
Gade, AUNSPECIFIEDUNSPECIFIED
Henry, TWUNSPECIFIEDUNSPECIFIED
Iwasaki, HUNSPECIFIEDUNSPECIFIED
Lemasson, AUNSPECIFIEDUNSPECIFIED
Lenzi, SMUNSPECIFIEDUNSPECIFIED
McDaniel, SUNSPECIFIEDUNSPECIFIED
Napoli, DRUNSPECIFIEDUNSPECIFIED
Nichols, AJUNSPECIFIEDUNSPECIFIED
Ratkiewicz, AUNSPECIFIEDUNSPECIFIED
Scruton, LUNSPECIFIEDUNSPECIFIED
Stroberg, SRUNSPECIFIEDUNSPECIFIED
Tostevin, JAUNSPECIFIEDUNSPECIFIED
Weisshaar, DUNSPECIFIEDUNSPECIFIED
Wimmer, KUNSPECIFIEDUNSPECIFIED
Winkler, RUNSPECIFIEDUNSPECIFIED
Date : 15 August 2016
Funders : STFC
Identification Number : 10.1103/PhysRevLett.117.082502
Copyright Disclaimer : Copyright 2016 American Physical Society
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 27 Jul 2016 07:52
Last Modified : 16 Aug 2016 08:23
URI: http://epubs.surrey.ac.uk/id/eprint/811465

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