[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

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decay
half life
germanium
rays
absorption spectroscopy
spectrometers
neutrons
nuclei
ground state
protons
detectors
excitation
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

[Formula Presented] decay of [Formula Presented] Evidence for the Gamow-Teller resonance near [Formula Presented]. / 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.; Rubio, B.; Shibata, M.; Szerypo, J.; Tain, J. L.; Wittmann, V.

In: Physical Review C - Nuclear Physics, Vol. 62, No. 6, 01.01.2000.

Research output: Contribution to journalArticle

Hu, Z, Batist, L, Agramunt, J, Algora, A, Brown, BA, 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, Rubio, B, Shibata, M, Szerypo, J, Tain, JL & Wittmann, V 2000, '[Formula Presented] decay of [Formula Presented] Evidence for the Gamow-Teller resonance near [Formula Presented]', Physical Review C - Nuclear Physics, vol. 62, no. 6. https://doi.org/10.1103/PhysRevC.62.064315
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. ; Rubio, B. ; Shibata, M. ; Szerypo, J. ; Tain, J. L. ; Wittmann, V. / [Formula Presented] decay of [Formula Presented] Evidence for the Gamow-Teller resonance near [Formula Presented]. In: Physical Review C - Nuclear Physics. 2000 ; Vol. 62, No. 6.
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AU - Algora, A.

AU - Brown, B. A.

AU - Cano-Ott, D.

AU - Collatz, R.

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AU - Gierlik, M.

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AU - Janas, Z.

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AU - Płochocki, A.

AU - Rejmund, M.

AU - Roeckl, E.

AU - Rubio, B.

AU - Shibata, M.

AU - Szerypo, J.

AU - Tain, J. L.

AU - Wittmann, V.

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N2 - 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.

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