Phys. Rev. C 80, 055501 (2009) [6 pages]Weak-interaction strength from charge-exchange reactions versus β decay in the A=40 isoquintetSee Also: Publisher's Note Received 29 February 2008; revised 1 July 2009; published 19 November 2009; publisher error corrected 24 November 2009 We report a measurement of the Gamow-Teller (GT) strength distribution for 40Ar→40K using the 0°(p,n) reaction. The measurement extends observed GT strength distribution in the A=40 system up to an excitation energy of ~8 MeV. In comparing our results with those from the β decay of the isospin mirror nucleus 40Ti, we find that, within the excitation energy region probed by the β-decay experiment, we observe a total GT strength that is in fair agreement with the β-decay measurement. However, we find that the relative strength of the two strongest transitions differs by a factor of ~1.8 in comparing our results from (p,n) reactions with the β decay of 40Ti. Using our results we present the neutrino-capture cross section for 40Ar. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.80.055501
DOI:
10.1103/PhysRevC.80.055501
PACS:
24.30.Gd, 21.10.Pc, 25.40.Kv, 27.40.+z
See AlsoPublisher's Note: M. Bhattacharya, C. D. Goodman, and A. García, Publisher’s Note: Weak-interaction strength from charge-exchange reactions versus β decay in the A=40 isoquintet [Phys. Rev. C 80, 055501 (2009)], Phys. Rev. C 80, 069901 (2009). |
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