Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I

NP1112-RIBF87 Collaboration

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The excited states of the neutron-rich nucleus 140I were, for the first time, investigated by a β-delayed γ-ray spectroscopy. The parent nuclide 140Te was produced through the in-flight fission of the 238U beam at 345 MeV per nucleon on a 9Be target at the Radioactive Isotope Beam Factory (RIBF), RIKEN in Japan. The half-life of 140Te was measured to be 350(5) ms and the spin-parity of ground state of 140I was found to be 2-. The spin-parities of three levels at 926, 1188, and 1787 keV were assigned as 1+ based on log f t values. These allowed Gamow-Teller (G-T) transition-states could be interpreted as the transformation of a neutron in the h9/2 orbital into a proton in the h11/2 orbital. Systematic features of level structures and G-T transitions are discussed in the frameworks of the large-scale shell model and deformed shell model.

Original languageEnglish
Title of host publication14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017
EditorsKevin Insik Hahn, Young Sun Lee, Sunchan Jeong, Sang Chul Kim, Myung-Ki Cheoun, Kyujin Kwak, Sung-Chul Yoon
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416420
DOIs
Publication statusPublished - 2018 Apr 25
Event14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017 - Daejeon, Korea, Republic of
Duration: 2017 Jun 272017 Jun 30

Publication series

NameAIP Conference Proceedings
Volume1947
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017
CountryKorea, Republic of
CityDaejeon
Period17/6/2717/6/30

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parity
neutrons
orbitals
protons
nuclides
industrial plants
half life
radioactive isotopes
fission
Japan
rays
flight
nuclei
ground state
spectroscopy
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

NP1112-RIBF87 Collaboration (2018). Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I. In K. I. Hahn, Y. S. Lee, S. Jeong, S. C. Kim, M-K. Cheoun, K. Kwak, & S-C. Yoon (Eds.), 14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017 [030002] (AIP Conference Proceedings; Vol. 1947). American Institute of Physics Inc.. https://doi.org/10.1063/1.5030830

Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I. / NP1112-RIBF87 Collaboration.

14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017. ed. / Kevin Insik Hahn; Young Sun Lee; Sunchan Jeong; Sang Chul Kim; Myung-Ki Cheoun; Kyujin Kwak; Sung-Chul Yoon. American Institute of Physics Inc., 2018. 030002 (AIP Conference Proceedings; Vol. 1947).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

NP1112-RIBF87 Collaboration 2018, Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I. in KI Hahn, YS Lee, S Jeong, SC Kim, M-K Cheoun, K Kwak & S-C Yoon (eds), 14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017., 030002, AIP Conference Proceedings, vol. 1947, American Institute of Physics Inc., 14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017, Daejeon, Korea, Republic of, 17/6/27. https://doi.org/10.1063/1.5030830
NP1112-RIBF87 Collaboration. Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I. In Hahn KI, Lee YS, Jeong S, Kim SC, Cheoun M-K, Kwak K, Yoon S-C, editors, 14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017. American Institute of Physics Inc. 2018. 030002. (AIP Conference Proceedings). https://doi.org/10.1063/1.5030830
NP1112-RIBF87 Collaboration. / Gamow-Teller transitions between proton h 11/2 and neutron h 9/2 partner orbitals in 140I. 14th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG2017. editor / Kevin Insik Hahn ; Young Sun Lee ; Sunchan Jeong ; Sang Chul Kim ; Myung-Ki Cheoun ; Kyujin Kwak ; Sung-Chul Yoon. American Institute of Physics Inc., 2018. (AIP Conference Proceedings).
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abstract = "The excited states of the neutron-rich nucleus 140I were, for the first time, investigated by a β-delayed γ-ray spectroscopy. The parent nuclide 140Te was produced through the in-flight fission of the 238U beam at 345 MeV per nucleon on a 9Be target at the Radioactive Isotope Beam Factory (RIBF), RIKEN in Japan. The half-life of 140Te was measured to be 350(5) ms and the spin-parity of ground state of 140I was found to be 2-. The spin-parities of three levels at 926, 1188, and 1787 keV were assigned as 1+ based on log f t values. These allowed Gamow-Teller (G-T) transition-states could be interpreted as the transformation of a neutron in the h9/2 orbital into a proton in the h11/2 orbital. Systematic features of level structures and G-T transitions are discussed in the frameworks of the large-scale shell model and deformed shell model.",
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AU - Lozeva, R.

AU - Söderström, P. A.

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N2 - The excited states of the neutron-rich nucleus 140I were, for the first time, investigated by a β-delayed γ-ray spectroscopy. The parent nuclide 140Te was produced through the in-flight fission of the 238U beam at 345 MeV per nucleon on a 9Be target at the Radioactive Isotope Beam Factory (RIBF), RIKEN in Japan. The half-life of 140Te was measured to be 350(5) ms and the spin-parity of ground state of 140I was found to be 2-. The spin-parities of three levels at 926, 1188, and 1787 keV were assigned as 1+ based on log f t values. These allowed Gamow-Teller (G-T) transition-states could be interpreted as the transformation of a neutron in the h9/2 orbital into a proton in the h11/2 orbital. Systematic features of level structures and G-T transitions are discussed in the frameworks of the large-scale shell model and deformed shell model.

AB - The excited states of the neutron-rich nucleus 140I were, for the first time, investigated by a β-delayed γ-ray spectroscopy. The parent nuclide 140Te was produced through the in-flight fission of the 238U beam at 345 MeV per nucleon on a 9Be target at the Radioactive Isotope Beam Factory (RIBF), RIKEN in Japan. The half-life of 140Te was measured to be 350(5) ms and the spin-parity of ground state of 140I was found to be 2-. The spin-parities of three levels at 926, 1188, and 1787 keV were assigned as 1+ based on log f t values. These allowed Gamow-Teller (G-T) transition-states could be interpreted as the transformation of a neutron in the h9/2 orbital into a proton in the h11/2 orbital. Systematic features of level structures and G-T transitions are discussed in the frameworks of the large-scale shell model and deformed shell model.

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