@Article{Fujita_etal2019,
author="Fujita, H. et al
and Algora, A.
and Estevez-Aguado, E.
and Molina, F.
and Rubio, B.",
title="Experimental study of Gamow-Teller transitions via the high-energy-resolution O-18(He-3, t)F-18 reaction: Identification of the low-energy {\textquoteleft}{\textquoteleft}super{\textquoteright}{\textquoteright} -Gamow-Teller state",
journal="Physical Review C",
year="2019",
publisher="Amer Physical Soc",
volume="100",
number="3",
pages="034618--13pp",
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{\textquoteright}) 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.",
optnote="WOS:000488259800004",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4165), last updated on Tue, 22 Oct 2019 16:06:51 +0000",
issn="2469-9985",
doi="10.1103/PhysRevC.100.034618",
opturl="https://doi.org/10.1103/PhysRevC.100.034618",
language="English"
}