Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei

Y. Fujita; T. Adachi; B. Blank; P. Von Brentano; G. P.A. Berg; H. Fujita; K. Fujita; K. Hatanaka; K. Nakanishi; A. Negret; L. Popescu; B. Rubio; Y. Shimbara; Y. Shimizu; Y. Tameshige; A. Tamii; M. Yosoi; K. O. Zell

doi:10.1063/1.3455955

Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei

Y. Fujita, T. Adachi, B. Blank, P. Von Brentano, G. P.A. Berg, H. Fujita, K. Fujita, K. Hatanaka, K. Nakanishi, A. Negret, L. Popescu, B. Rubio, Y. Shimbara, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, K. O. Zell

Experimental Particle Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the β-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (³He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of T_z = ±2 → ±1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich T_z = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the ⁵²Ni β decay can be understood better by combining the mirror GT strength distribution obtained from the ⁵²Cr(³He, t) reaction.

Original language	English
Title of host publication	Tours Symposium on Nuclear Physics and Astrophysics - VII
Pages	297-300
Number of pages	4
DOIs	https://doi.org/10.1063/1.3455955
Publication status	Published - 2010
Event	7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan Duration: Nov 16 2009 → Nov 20 2009

Publication series

Name	AIP Conference Proceedings
Volume	1238
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	7th Tours Symposium on Nuclear Physics and Astrophysics
Country/Territory	Japan
City	Kobe
Period	11/16/09 → 11/20/09

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.3455955

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Fujita, Y., Adachi, T., Blank, B., Von Brentano, P., Berg, G. P. A., Fujita, H., Fujita, K., Hatanaka, K., Nakanishi, K., Negret, A., Popescu, L., Rubio, B., Shimbara, Y., Shimizu, Y., Tameshige, Y., Tamii, A., Yosoi, M., & Zell, K. O. (2010). Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei. In Tours Symposium on Nuclear Physics and Astrophysics - VII (pp. 297-300). (AIP Conference Proceedings; Vol. 1238). https://doi.org/10.1063/1.3455955

Fujita, Y, Adachi, T, Blank, B, Von Brentano, P, Berg, GPA, Fujita, H, Fujita, K, Hatanaka, K, Nakanishi, K, Negret, A, Popescu, L, Rubio, B, Shimbara, Y, Shimizu, Y, Tameshige, Y, Tamii, A, Yosoi, M & Zell, KO 2010, Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei. in Tours Symposium on Nuclear Physics and Astrophysics - VII. AIP Conference Proceedings, vol. 1238, pp. 297-300, 7th Tours Symposium on Nuclear Physics and Astrophysics, Kobe, Japan, 11/16/09. https://doi.org/10.1063/1.3455955

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title = "Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei",

abstract = "In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the β-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz = ±2 → ±1 analogous GT transitions, we present a {"}merged analysis{"} for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni β decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He, t) reaction.",

author = "Y. Fujita and T. Adachi and B. Blank and {Von Brentano}, P. and Berg, {G. P.A.} and H. Fujita and K. Fujita and K. Hatanaka and K. Nakanishi and A. Negret and L. Popescu and B. Rubio and Y. Shimbara and Y. Shimizu and Y. Tameshige and A. Tamii and M. Yosoi and Zell, {K. O.}",

year = "2010",

doi = "10.1063/1.3455955",

language = "English",

isbn = "9780735407848",

series = "AIP Conference Proceedings",

pages = "297--300",

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T1 - Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei

AU - Fujita, Y.

AU - Adachi, T.

AU - Blank, B.

AU - Von Brentano, P.

AU - Berg, G. P.A.

AU - Fujita, H.

AU - Fujita, K.

AU - Hatanaka, K.

AU - Nakanishi, K.

AU - Negret, A.

AU - Popescu, L.

AU - Rubio, B.

AU - Shimbara, Y.

AU - Shimizu, Y.

AU - Tameshige, Y.

AU - Tamii, A.

AU - Yosoi, M.

AU - Zell, K. O.

PY - 2010

Y1 - 2010

N2 - In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the β-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz = ±2 → ±1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni β decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He, t) reaction.

AB - In violent neutrino-induced reactions at the core-collapse stage of type II supernovae, Gamow-Teller (GT) transitions starting from stable as well as unstable pf-shell nuclei play important roles. In the β-decay study of these unstable pf-shell nuclei, half-lives can be measured rather accurately. On the other hand, in high-resolution (3He, t) charge-exchange reactions at 0°, individual GT transitions up to high excitations can be studied. Assuming the isospin symmetry for the strengths of Tz = ±2 → ±1 analogous GT transitions, we present a "merged analysis" for the determination of GT transition strengths starting from proton-rich Tz = -2 nuclei. We applied this analysis to the A = 52, T = 2 system, and it was found that the GT transitions and the properties of the 52Ni β decay can be understood better by combining the mirror GT strength distribution obtained from the 52Cr(3He, t) reaction.

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SP - 297

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BT - Tours Symposium on Nuclear Physics and Astrophysics - VII

T2 - 7th Tours Symposium on Nuclear Physics and Astrophysics

Y2 - 16 November 2009 through 20 November 2009

ER -

Gamow-Teller transitions and β-decay half-life in proton rich pf-shell nuclei

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