Weak-interaction strength from charge-exchange reactions versus beta decay in the A=40 isoquintet - INSPIRE

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Weak-interaction strength from charge-exchange reactions versus beta decay in the A=40 isoquintet

M. Bhattacharya
(
- Brookhaven and
- Indiana U., IUCF
)
,
C.D. Goodman
(
- Indiana U., IUCF
)
,
A. Garcia
(
- Washington U., Seattle
)

Nov, 2009

6 pages

Published in:

Phys.Rev.C 80 (2009) 055501

DOI:

10.1103/PhysRevC.80.055501

View in:

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Abstract: (APS)

We report a measurement of the Gamow-Teller (GT) strength distribution for Ar40→K40 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 Ti40, 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 Ti40. Using our results we present the neutrino-capture cross section for Ar40.

25.40.Kv
21.10.Pc
24.30.Gd
27.40.+z

References(17)

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