[Formula Presented] decay of [Formula Presented] Evidence for the Gamow-Teller resonance near [Formula Presented]

Z. Hu, L. Batist, J. Agramunt, A. Algora, B. A. Brown, D. Cano-Ott, R. Collatz, A. Gadea, M. Gierlik, M. Górska, H. Grawe, M. Hellström, Z. Janas, M. Karny, R. Kirchner, F. Moroz, A. Płochocki, M. Rejmund, E. Roeckl, B. RubioM. Shibata, J. Szerypo, J. L. Tain, V. Wittmann

Research output: Contribution to journalArticle

Abstract

In two complementary measurements, a cubelike array of six Euroball-Cluster germanium detectors and a total-absorption γ spectrometer were used to investigate the β decay of [Formula Presented] a three-proton-hole and one-neutron-particle nucleus with respect to the [Formula Presented] core. The half-life and [Formula Presented] value of the decay were determined to be 47.7(0.3) s and 8200(70) MeV, respectively. A total of 438 γ rays (414 new) was observed, and 173 levels (163 new) in [Formula Presented] have been identified. The Gamow-Teller (GT) β-decay strength distribution from the total-absorption γ spectroscopy reveals a large GT resonance around 6 MeV with a width of about 2 MeV. The hindrance factor for the total GT strength, summed from the ground state up to 7.8 MeV excitation energy in [Formula Presented] amounts to 4.6(6) with reference to a shell-model calculation which yields good agreement with the shape of the experimental GT resonance.

Original languageEnglish
Number of pages1
JournalPhysical Review C - Nuclear Physics
Volume62
Issue number6
DOIs
Publication statusPublished - Jan 1 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Hu, Z., Batist, L., Agramunt, J., Algora, A., Brown, B. A., Cano-Ott, D., Collatz, R., Gadea, A., Gierlik, M., Górska, M., Grawe, H., Hellström, M., Janas, Z., Karny, M., Kirchner, R., Moroz, F., Płochocki, A., Rejmund, M., Roeckl, E., ... Wittmann, V. (2000). [Formula Presented] decay of [Formula Presented] Evidence for the Gamow-Teller resonance near [Formula Presented]. Physical Review C - Nuclear Physics, 62(6). https://doi.org/10.1103/PhysRevC.62.064315