Investigating the strength of the N = 34 subshell closure in 54Ca

D. Steppenbeck; S. Takeuchi; N. Aoi; P. Doornenbal; J. Lee; M. Matsushita; H. Wang; H. Baba; N. Fukuda; S. Go; M. Honma; K. Matsui; S. Michimasa; T. Motobayashi; D. Nishimura; T. Otsuka; H. Sakurai; Y. Shiga; P. A. Söderström; T. Sumikama; H. Suzuki; R. Taniuchi; Y. Utsuno; J. J. Valiente-Dobón; K. Yoneda

doi:10.1088/1742-6596/445/1/012012

Investigating the strength of the N = 34 subshell closure in ⁵⁴Ca

D. Steppenbeck, S. Takeuchi, N. Aoi, P. Doornenbal, J. Lee, M. Matsushita, H. Wang, H. Baba, N. Fukuda, S. Go, M. Honma, K. Matsui, S. Michimasa, T. Motobayashi, D. Nishimura, T. Otsuka, H. Sakurai, Y. Shiga, P. A. Söderström, T. SumikamaH. Suzuki, R. Taniuchi, Y. Utsuno, J. J. Valiente-Dobón, K. Yoneda

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Excited states in the exotic N = 34 isotope ⁵⁴Ca have been measured for the first time via in-beam γ-ray spectroscopy with proton-knockout reactions from ⁵⁵Sc and ⁵⁶Ti radioactive beams on a Be reaction target at the Radioactive Isotope Beam Factory, Japan. A strong candidate for the transition from the first 2⁺ state to the 0⁺ ground state has been identified, in addition to several other weaker transitions. The structure of the N = 33 isotope ⁵³Ca has also been investigated from the same data. Preliminary γ-ray energy spectra for ⁵⁴Ca and ⁵³Ca will be presented and the significance of the N = 34 subshell closure will be examined. Predictions of several shell-model interactions performed in the fp model space will be discussed in light of the new results.

Original language	English
Article number	012012
Journal	Journal of Physics: Conference Series
Volume	445
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/445/1/012012
Publication status	Published - 2013
Externally published	Yes
Event	International Symposium on Exotic Nuclear Structure From Nucleons, ENSFN 2012 - Tokyo, Japan Duration: Oct 10 2012 → Oct 12 2012

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1088/1742-6596/445/1/012012

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Steppenbeck, D., Takeuchi, S., Aoi, N., Doornenbal, P., Lee, J., Matsushita, M., Wang, H., Baba, H., Fukuda, N., Go, S., Honma, M., Matsui, K., Michimasa, S., Motobayashi, T., Nishimura, D., Otsuka, T., Sakurai, H., Shiga, Y., Söderström, P. A., ... Yoneda, K. (2013). Investigating the strength of the N = 34 subshell closure in ⁵⁴Ca. Journal of Physics: Conference Series, 445(1), [012012]. https://doi.org/10.1088/1742-6596/445/1/012012

Steppenbeck, D, Takeuchi, S, Aoi, N, Doornenbal, P, Lee, J, Matsushita, M, Wang, H, Baba, H, Fukuda, N, Go, S, Honma, M, Matsui, K, Michimasa, S, Motobayashi, T, Nishimura, D, Otsuka, T, Sakurai, H, Shiga, Y, Söderström, PA, Sumikama, T, Suzuki, H, Taniuchi, R, Utsuno, Y, Valiente-Dobón, JJ & Yoneda, K 2013, 'Investigating the strength of the N = 34 subshell closure in ⁵⁴Ca', Journal of Physics: Conference Series, vol. 445, no. 1, 012012. https://doi.org/10.1088/1742-6596/445/1/012012

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title = "Investigating the strength of the N = 34 subshell closure in 54Ca",

abstract = "Excited states in the exotic N = 34 isotope 54Ca have been measured for the first time via in-beam γ-ray spectroscopy with proton-knockout reactions from 55Sc and 56Ti radioactive beams on a Be reaction target at the Radioactive Isotope Beam Factory, Japan. A strong candidate for the transition from the first 2+ state to the 0+ ground state has been identified, in addition to several other weaker transitions. The structure of the N = 33 isotope 53Ca has also been investigated from the same data. Preliminary γ-ray energy spectra for 54Ca and 53Ca will be presented and the significance of the N = 34 subshell closure will be examined. Predictions of several shell-model interactions performed in the fp model space will be discussed in light of the new results.",

author = "D. Steppenbeck and S. Takeuchi and N. Aoi and P. Doornenbal and J. Lee and M. Matsushita and H. Wang and H. Baba and N. Fukuda and S. Go and M. Honma and K. Matsui and S. Michimasa and T. Motobayashi and D. Nishimura and T. Otsuka and H. Sakurai and Y. Shiga and S{\"o}derstr{\"o}m, {P. A.} and T. Sumikama and H. Suzuki and R. Taniuchi and Y. Utsuno and Valiente-Dob{\'o}n, {J. J.} and K. Yoneda",

year = "2013",

doi = "10.1088/1742-6596/445/1/012012",

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volume = "445",

journal = "Journal of Physics: Conference Series",

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T1 - Investigating the strength of the N = 34 subshell closure in 54Ca

AU - Steppenbeck, D.

AU - Takeuchi, S.

AU - Aoi, N.

AU - Doornenbal, P.

AU - Lee, J.

AU - Matsushita, M.

AU - Wang, H.

AU - Baba, H.

AU - Fukuda, N.

AU - Go, S.

AU - Honma, M.

AU - Matsui, K.

AU - Michimasa, S.

AU - Motobayashi, T.

AU - Nishimura, D.

AU - Otsuka, T.

AU - Sakurai, H.

AU - Shiga, Y.

AU - Söderström, P. A.

AU - Sumikama, T.

AU - Suzuki, H.

AU - Taniuchi, R.

AU - Utsuno, Y.

AU - Valiente-Dobón, J. J.

AU - Yoneda, K.

PY - 2013

Y1 - 2013

N2 - Excited states in the exotic N = 34 isotope 54Ca have been measured for the first time via in-beam γ-ray spectroscopy with proton-knockout reactions from 55Sc and 56Ti radioactive beams on a Be reaction target at the Radioactive Isotope Beam Factory, Japan. A strong candidate for the transition from the first 2+ state to the 0+ ground state has been identified, in addition to several other weaker transitions. The structure of the N = 33 isotope 53Ca has also been investigated from the same data. Preliminary γ-ray energy spectra for 54Ca and 53Ca will be presented and the significance of the N = 34 subshell closure will be examined. Predictions of several shell-model interactions performed in the fp model space will be discussed in light of the new results.

AB - Excited states in the exotic N = 34 isotope 54Ca have been measured for the first time via in-beam γ-ray spectroscopy with proton-knockout reactions from 55Sc and 56Ti radioactive beams on a Be reaction target at the Radioactive Isotope Beam Factory, Japan. A strong candidate for the transition from the first 2+ state to the 0+ ground state has been identified, in addition to several other weaker transitions. The structure of the N = 33 isotope 53Ca has also been investigated from the same data. Preliminary γ-ray energy spectra for 54Ca and 53Ca will be presented and the significance of the N = 34 subshell closure will be examined. Predictions of several shell-model interactions performed in the fp model space will be discussed in light of the new results.

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SN - 1742-6588

VL - 445

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

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T2 - International Symposium on Exotic Nuclear Structure From Nucleons, ENSFN 2012

Y2 - 10 October 2012 through 12 October 2012

ER -

Investigating the strength of the N = 34 subshell closure in ⁵⁴Ca

Abstract

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