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Analog E1 transitions and isospin mixing

Pattabiraman, NS, Jenkins, DG, Bentley, MA, Wadsworth, R, Lister, CJ, Carpenter, MP, Janssens, RVF, Khoo, TL, Lauritsen, T, Seweryniak, D, Zhu, S, Lotay, G, Woods, PJ, Krishichayan, and Isacker, PV (2008) Analog E1 transitions and isospin mixing Physical Review C - Nuclear Physics, 78 (2).

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Abstract

We investigate whether isospin mixing can be determined in a model-independent way from the relative strength of E1 transitions in mirror nuclei. The specific examples considered are the A=31 and A=35 mirror pairs, where a serious discrepancy between the strengths of 7/2-→5/2+ transitions in the respective mirror nuclei has been observed. A theoretical analysis of the problem suggests that it ought to be possible to disentangle the isospin mixing in the initial and final states given sufficient information on experimental matrix elements. With this in mind, we obtain a lifetime for the relevant 7/2- state in S31 using the Doppler-shift attenuation method. We then collate the available information on matrix elements to examine the level of isospin mixing for both A=31 and A=35 mirror pairs. © 2008 The American Physical Society.

Item Type: Article
Authors :
NameEmailORCID
Pattabiraman, NSUNSPECIFIEDUNSPECIFIED
Jenkins, DGUNSPECIFIEDUNSPECIFIED
Bentley, MAUNSPECIFIEDUNSPECIFIED
Wadsworth, RUNSPECIFIEDUNSPECIFIED
Lister, CJUNSPECIFIEDUNSPECIFIED
Carpenter, MPUNSPECIFIEDUNSPECIFIED
Janssens, RVFUNSPECIFIEDUNSPECIFIED
Khoo, TLUNSPECIFIEDUNSPECIFIED
Lauritsen, TUNSPECIFIEDUNSPECIFIED
Seweryniak, DUNSPECIFIEDUNSPECIFIED
Zhu, SUNSPECIFIEDUNSPECIFIED
Lotay, Gg.lotay@surrey.ac.ukUNSPECIFIED
Woods, PJUNSPECIFIEDUNSPECIFIED
Krishichayan, UNSPECIFIEDUNSPECIFIED
Isacker, PVUNSPECIFIEDUNSPECIFIED
Date : 6 August 2008
Identification Number : https://doi.org/10.1103/PhysRevC.78.024301
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:40
Last Modified : 17 May 2017 15:12
URI: http://epubs.surrey.ac.uk/id/eprint/840068

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