High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction

T. Adachi; Y. Fujita; A.D. Bacher; G.P.A. Berg; T. Black; D. De Frenne; C.C. Foster; H. Fujita; K. Fujita; K. Hatanaka; M. Honma; E. Jakobs; J. Janecke; K. Kanzaki; K. Katori; K. Nakanishi; A. Negret; T. Otsuka; Lucia Popescu; D.A. Roberts; Y. Sakemi; Y. Shimbara; Y. Shimizu; E.J. Stephenson; Y. Tameshige; A. Tamii; M. Uchida; H. Ueno; T. Yamanaka; M. Yosoi; K.O. Zell; Dieter Pauwels

doi:10.1103/PhysRevC.85.024308

High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction

T. Adachi, Y. Fujita, A.D. Bacher, G.P.A. Berg, T. Black, D. De Frenne, C.C. Foster, H. Fujita, K. Fujita, K. Hatanaka, M. Honma, E. Jakobs, J. Janecke, K. Kanzaki, K. Katori, K. Nakanishi, A. Negret, T. Otsuka, Lucia Popescu, D.A. RobertsY. Sakemi, Y. Shimbara, Y. Shimizu, E.J. Stephenson, Y. Tameshige, A. Tamii, M. Uchida, H. Ueno, T. Yamanaka, M. Yosoi, K.O. Zell, Dieter Pauwels

Research output › peer-review

Abstract

The Gamow-Teller transition strengths, B(GT), in pf-shell nuclei are of interest in nuclear physics as well as in nuclear astrophysics. A high-resolution (3He,t) charge-exchange reaction was performed on the Tz=+1 nucleus 54Fe at 0 deg and at an intermediate incident energy of 140 MeV/nucleon for the study of precise GT transition strengths to the final Tz=0 nucleus 54Co. By applying dispersion matching techniques for a high-quality 3He beam at RCNP, an energy resolution of 21 keV and an angular resolution of 5 mr were realized. Excitation strengths were obtained for the observed GT states. The results were compared with a shell-model calculation using the GXPF1 interaction and with B(M1) strengths measured in the 54Fe(e,e′)54Fe reaction. In the M1 excitation using an electromagnetic probe, isoscalar (IS) and isovector (IV) orbital type operators are active in addition to the IV spin type operator that mediates the GT transitions. The contributions of the IS and IV orbital terms were studied by calculating the ratio of the strengths of analogous M1 and GT transitions.

Original language	English
Pages (from-to)	024308-024308
Journal	Physical Review C
Volume	85
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.85.024308
State	Published - 10 Feb 2012

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Adachi, T., Fujita, Y., Bacher, A. D., Berg, G. P. A., Black, T., De Frenne, D., Foster, C. C., Fujita, H., Fujita, K., Hatanaka, K., Honma, M., Jakobs, E., Janecke, J., Kanzaki, K., Katori, K., Nakanishi, K., Negret, A., Otsuka, T., Popescu, L., ... Pauwels, D. (2012). High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction. Physical Review C, 85(2), 024308-024308. https://doi.org/10.1103/PhysRevC.85.024308

@article{79cdf90c7fab46e08c1092da292d77eb,

title = "High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction",

abstract = "The Gamow-Teller transition strengths, B(GT), in pf-shell nuclei are of interest in nuclear physics as well as in nuclear astrophysics. A high-resolution (3He,t) charge-exchange reaction was performed on the Tz=+1 nucleus 54Fe at 0 deg and at an intermediate incident energy of 140 MeV/nucleon for the study of precise GT transition strengths to the final Tz=0 nucleus 54Co. By applying dispersion matching techniques for a high-quality 3He beam at RCNP, an energy resolution of 21 keV and an angular resolution of 5 mr were realized. Excitation strengths were obtained for the observed GT states. The results were compared with a shell-model calculation using the GXPF1 interaction and with B(M1) strengths measured in the 54Fe(e,e′)54Fe reaction. In the M1 excitation using an electromagnetic probe, isoscalar (IS) and isovector (IV) orbital type operators are active in addition to the IV spin type operator that mediates the GT transitions. The contributions of the IS and IV orbital terms were studied by calculating the ratio of the strengths of analogous M1 and GT transitions.",

keywords = "charge-exchange reactions, Gamow-Teller transitions, GT transition strengths",

author = "T. Adachi and Y. Fujita and A.D. Bacher and G.P.A. Berg and T. Black and {De Frenne}, D. and C.C. Foster and H. Fujita and K. Fujita and K. Hatanaka and M. Honma and E. Jakobs and J. Janecke and K. Kanzaki and K. Katori and K. Nakanishi and A. Negret and T. Otsuka and Lucia Popescu and D.A. Roberts and Y. Sakemi and Y. Shimbara and Y. Shimizu and E.J. Stephenson and Y. Tameshige and A. Tamii and M. Uchida and H. Ueno and T. Yamanaka and M. Yosoi and K.O. Zell and Dieter Pauwels",

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doi = "10.1103/PhysRevC.85.024308",

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Adachi, T, Fujita, Y, Bacher, AD, Berg, GPA, Black, T, De Frenne, D, Foster, CC, Fujita, H, Fujita, K, Hatanaka, K, Honma, M, Jakobs, E, Janecke, J, Kanzaki, K, Katori, K, Nakanishi, K, Negret, A, Otsuka, T, Popescu, L, Roberts, DA, Sakemi, Y, Shimbara, Y, Shimizu, Y, Stephenson, EJ, Tameshige, Y, Tamii, A, Uchida, M, Ueno, H, Yamanaka, T, Yosoi, M, Zell, KO & Pauwels, D 2012, 'High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction', Physical Review C, vol. 85, no. 2, pp. 024308-024308. https://doi.org/10.1103/PhysRevC.85.024308

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T1 - High-resolution study of Gamow-Teller transitions via the 54Fe(3He,t)54Co reaction

AU - Adachi, T.

AU - Fujita, Y.

AU - Bacher, A.D.

AU - Berg, G.P.A.

AU - Black, T.

AU - De Frenne, D.

AU - Foster, C.C.

AU - Fujita, H.

AU - Fujita, K.

AU - Hatanaka, K.

AU - Honma, M.

AU - Jakobs, E.

AU - Janecke, J.

AU - Kanzaki, K.

AU - Katori, K.

AU - Nakanishi, K.

AU - Negret, A.

AU - Otsuka, T.

AU - Popescu, Lucia

AU - Roberts, D.A.

AU - Sakemi, Y.

AU - Shimbara, Y.

AU - Shimizu, Y.

AU - Stephenson, E.J.

AU - Tameshige, Y.

AU - Tamii, A.

AU - Uchida, M.

AU - Ueno, H.

AU - Yamanaka, T.

AU - Yosoi, M.

AU - Zell, K.O.

A2 - Pauwels, Dieter

N1 - Score = 10

PY - 2012/2/10

Y1 - 2012/2/10

N2 - The Gamow-Teller transition strengths, B(GT), in pf-shell nuclei are of interest in nuclear physics as well as in nuclear astrophysics. A high-resolution (3He,t) charge-exchange reaction was performed on the Tz=+1 nucleus 54Fe at 0 deg and at an intermediate incident energy of 140 MeV/nucleon for the study of precise GT transition strengths to the final Tz=0 nucleus 54Co. By applying dispersion matching techniques for a high-quality 3He beam at RCNP, an energy resolution of 21 keV and an angular resolution of 5 mr were realized. Excitation strengths were obtained for the observed GT states. The results were compared with a shell-model calculation using the GXPF1 interaction and with B(M1) strengths measured in the 54Fe(e,e′)54Fe reaction. In the M1 excitation using an electromagnetic probe, isoscalar (IS) and isovector (IV) orbital type operators are active in addition to the IV spin type operator that mediates the GT transitions. The contributions of the IS and IV orbital terms were studied by calculating the ratio of the strengths of analogous M1 and GT transitions.

AB - The Gamow-Teller transition strengths, B(GT), in pf-shell nuclei are of interest in nuclear physics as well as in nuclear astrophysics. A high-resolution (3He,t) charge-exchange reaction was performed on the Tz=+1 nucleus 54Fe at 0 deg and at an intermediate incident energy of 140 MeV/nucleon for the study of precise GT transition strengths to the final Tz=0 nucleus 54Co. By applying dispersion matching techniques for a high-quality 3He beam at RCNP, an energy resolution of 21 keV and an angular resolution of 5 mr were realized. Excitation strengths were obtained for the observed GT states. The results were compared with a shell-model calculation using the GXPF1 interaction and with B(M1) strengths measured in the 54Fe(e,e′)54Fe reaction. In the M1 excitation using an electromagnetic probe, isoscalar (IS) and isovector (IV) orbital type operators are active in addition to the IV spin type operator that mediates the GT transitions. The contributions of the IS and IV orbital terms were studied by calculating the ratio of the strengths of analogous M1 and GT transitions.

KW - charge-exchange reactions

KW - Gamow-Teller transitions

KW - GT transition strengths

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UR - http://knowledgecentre.sckcen.be/so2/bibref/8863

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DO - 10.1103/PhysRevC.85.024308

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