Douma, C. A., Agodi, C., Akimune, H., Alanssari, M., Cappuzzello, F., Carbone, D., Cavallaro, M., Colo, G., Diel, F., Ejiri, H., Frekers, D., Fujita, H., Fujita, Y., Fujiwara, M., Gey, G., Harakeh, M. N., Hatanaka, K., Hattori, F., Heguri, K., Holl, M., Inoue, A., Kalantar-Nayestanaki, N., Niu, Y. F., Puppe, P., Ries, P. C., Tamii, A., Werner, V., Zegers, R. G. T. and Zuber, K. (2020). Gamow-Teller strength distributions of Sb-116 and Sb-122 using the (He-3,t) charge-exchange reaction. Eur. Phys. J. A, 56 (2). NEW YORK: SPRINGER. ISSN 1434-601X

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Abstract

The Gamow-Teller strength distributions of 116Sb and 122Sb were measured with the 116,122Sn(3He,t)116,122Sb charge-exchange reactions at 140 MeV/u. The measurements were carried out at the Research Center for Nuclear Physics (RCNP) at Osaka University in Osaka, Japan using the Grand Raiden spectrometer. The data were analysed by Multipole-Decomposition Analysis (MDA). The Gamow-Teller strengths summed up to 28 MeV are (38 +/- 7)% and (48 +/- 6)% of the Ikeda sum rule for 116Sb and 122Sb, respectively, if the quasi-free scattering (QFS) contribution is not subtracted. These percentages are (29 +/- 7)% and (35 +/- 5)%, respectively, if the QFS contribution is maximally subtracted. These results were compared to those from previous measurements of the same isotopes, to recent measurements of 150Pm, and to a Quasi-particle Random-Phase Approximation (QRPA) calculation with Quasi-Particle Vibration Coupling (QPVC). The data suggest that the true QFS contribution is small for 116Sb, but are inconclusive about whether the QFS contribution is small or significant for 122Sb. Therefore, these data may provide an interesting test for the general quenching phenomenon of the Gamow-Teller Resonance (GTR). However, more research to reveal the nature of the QFS contribution is still needed on both the experimental and the theoretical side.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Douma, C. A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Agodi, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Akimune, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Alanssari, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cappuzzello, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Carbone, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cavallaro, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Colo, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Diel, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ejiri, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Frekers, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujita, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujita, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujiwara, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gey, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Harakeh, M. N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hatanaka, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hattori, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Heguri, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Holl, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Inoue, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kalantar-Nayestanaki, N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Niu, Y. F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Puppe, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ries, P. C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tamii, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Werner, V.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zegers, R. G. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zuber, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-345025
DOI: 10.1140/epja/s10050-020-00044-9
Journal or Publication Title: Eur. Phys. J. A
Volume: 56
Number: 2
Date: 2020
Publisher: SPRINGER
Place of Publication: NEW YORK
ISSN: 1434-601X
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SPIN-ISOSPIN RESPONSES; BETA-DECAY; ISOVECTOR EXCITATIONS; SCATTERING; FRAGMENTATIONMultiple languages
Physics, Nuclear; Physics, Particles & FieldsMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/34502

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