Fujita, H., Fujita, Y., Utsuno, Y., Yoshida, K., Adachi, T., Algora, A., Csatlos, M., Deaven, J. M., Estevez-Aguado, E., Guess, C. J., Gulyas, J., Hatanaka, K., Hirota, K., Hutton, R., Ishikawa, D., Krasznahorkay, A., Matsubara, H., Molina, F., Okamura, H., Ong, H. J., Perdikakis, G., Rubio, B., Scholl, C., Shimbara, Y., Susoy, G., Suzuki, T., Tamii, A., Thies, J. H., Zegers, R. G. T. and Zenihiro, J. (2019). Experimental study of Gamow-Teller transitions via the high-energy-resolution O-18(He-3, t)F-18 reaction: Identification of the low-energy super -Gamow-Teller state. Phys. Rev. C, 100 (3). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9993

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Abstract

Using the high-resolution O-18(He-3, t)F-18 reaction at 0 degrees and at 140 MeV/nucleon, Gamow-Teller (GT) transitions were studied. A high energy resolution of 31 keV was achieved by applying dispersion matching techniques. The main part of the observed GT transition strength is concentrated in the transition to the F-18 ground state (g.s.). The absolute values of the reduced GT transition strengths, B(GT), were derived up to E-x = 12 MeV assuming proportionality between the B(GT) values and the reaction cross sections at 0 degrees. The B(GT) value obtained from the beta decay of F-18 (g.s.) -> O-18 (g.s.) was used to determine the proportionality constant. A total B(GT) of 4.06(5) was found and 76(1)% of the strength is concentrated to the ground state of F-18. The obtained B(GT) values were compared with those from the O-18(p, n) F-18 reaction and the mirror symmetric beta(+) decay of Ne-18 -> F-18. The candidates for 1(+) states with isospin T = 1 were identified by comparison with the O-18(p, p') data. The results of shell-model and quasiparticle-random-phase approximation calculations suggest constructive contributions of various configurations to the F-18 ground state, suggesting that this state is the low-energy super GT state.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Fujita, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fujita, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Utsuno, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Yoshida, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Adachi, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Algora, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Csatlos, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Deaven, J. M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Estevez-Aguado, E.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guess, C. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gulyas, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hatanaka, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hirota, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hutton, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ishikawa, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krasznahorkay, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matsubara, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Molina, F.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Okamura, H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ong, H. J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Perdikakis, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rubio, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Scholl, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shimbara, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Susoy, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Suzuki, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tamii, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Thies, J. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zegers, R. G. T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zenihiro, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-133655
DOI: 10.1103/PhysRevC.100.034618
Journal or Publication Title: Phys. Rev. C
Volume: 100
Number: 3
Date: 2019
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9993
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
BEAM LINE; NUCLEI; SPECTROMETER; SCATTERING; SPIN; WEAK; EXCITATIONS; ISOVECTOR; O-16Multiple languages
Physics, NuclearMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/13365

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