Gamow-Teller transitions in the A=40 isoquintet of relevance for neutrino captures in Ar-40

Date
2014
Author
Deaven, J. M.
Fujita, Y.
Adachi, T.
Fujita, H.
Csatlos, M.
Guess, C. J.
Gulyas, J.
Hatanaka, K.
Hirota, K.
Ishikawa, D.
Krasznahorkay, A.
Matsubara, H.
Meharchand, R.
Molina, F.
Okamura, H.
Ong, H. J.
Perdikakis, G.
Scholl, C.
Susoy, G.
Suzuki, T.
Tamii, A.
Thies, J. H.
KARAKOÇ, MESUT
BOZTOSUN, İSMAİL
Shimbara, Y.
Zegers, R. G. T.
Zenihiro, J.
Brown, B. A.
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Abstract
Background: The Gamow-Teller response of Ar-40 is important for the use of liquid argon as a medium for neutrino detection. An ambiguity about the Gamow-Teller strength for the excitation of 1(+) states at 2290 and 2730 keV in K-40 results in a significant uncertainty for neutrino capture rates. This ambiguity is caused by the large discrepancy observed between strengths extracted from Ar-40(p, n) charge-exchange data and the transition strengths for the analog transitions studied in the beta decay of Ti-40.
URI
http://hdl.handle.net/20.500.12627/94399
https://doi.org/10.1103/physrevc.89.064313
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