The (3He,t) reaction on 76Ge, and the double-β-decay matrix element

J. H. Thies; D. Frekers; T. Adachi; M. Dozono; H. Ejiri; H. Fujita; Y. Fujita; M. Fujiwara; E. W. Grewe; K. Hatanaka; P. Heinrichs; D. Ishikawa; N. T. Khai; A. Lennarz; H. Matsubara; H. Okamura; Y. Y. Oo; P. Puppe; T. Ruhe; K. Suda; A. Tamii; H. P. Yoshida; R. G.T. Zegers

doi:10.1103/PhysRevC.86.014304

The (3He,t) reaction on 76Ge, and the double-β-decay matrix element

J. H. Thies, D. Frekers, T. Adachi, M. Dozono, H. Ejiri, H. Fujita, Y. Fujita, M. Fujiwara, E. W. Grewe, K. Hatanaka, P. Heinrichs, D. Ishikawa, N. T. Khai, A. Lennarz, H. Matsubara, H. Okamura, Y. Y. Oo, P. Puppe, T. Ruhe, K. SudaA. Tamii, H. P. Yoshida, R. G.T. Zegers

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

74 被引用数 (Scopus)

抄録

A 76Ge(3He,t)76As charge-exchange experiment at an incident energy of 420 MeV has been performed with an energy resolution of 30 keV. The Gamow-Teller GT^- strength distribution in 76As, which is the intermediate nucleus in the double-beta (ββ) decay of 76Ge, has been extracted. An unusually strong fragmentation of the GT^- strength is observed even at low excitation energies of E_x≤5MeV. By combining the data with those for GT⁺ transitions from a recent 76Se(d,2He)76As measurement, the nuclear matrix element for the 76Ge 2νββ decay has been evaluated. A lack of correlation among the GT transition strengths feeding the same levels from the two different directions is observed. The impact on the 76Ge 2νββ decay nuclear matrix element is discussed.

本文言語	英語
論文番号	014304
ジャーナル	Physical Review C - Nuclear Physics
巻	86
号	1
DOI	https://doi.org/10.1103/PhysRevC.86.014304
出版ステータス	出版済み - 03-07-2012
外部発表	はい

All Science Journal Classification (ASJC) codes

核物理学および高エネルギー物理学

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10.1103/PhysRevC.86.014304

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Thies, J. H., Frekers, D., Adachi, T., Dozono, M., Ejiri, H., Fujita, H., Fujita, Y., Fujiwara, M., Grewe, E. W., Hatanaka, K., Heinrichs, P., Ishikawa, D., Khai, N. T., Lennarz, A., Matsubara, H., Okamura, H., Oo, Y. Y., Puppe, P., Ruhe, T., ... Zegers, R. G. T. (2012). The (3He,t) reaction on 76Ge, and the double-β-decay matrix element. Physical Review C - Nuclear Physics, 86(1), 記事 014304. https://doi.org/10.1103/PhysRevC.86.014304

@article{5d35f95d03ec4bd4a65453e0519fcf7b,

title = "The (3He,t) reaction on 76Ge, and the double-β-decay matrix element",

abstract = "A 76Ge(3He,t)76As charge-exchange experiment at an incident energy of 420 MeV has been performed with an energy resolution of 30 keV. The Gamow-Teller GT- strength distribution in 76As, which is the intermediate nucleus in the double-beta (ββ) decay of 76Ge, has been extracted. An unusually strong fragmentation of the GT- strength is observed even at low excitation energies of Ex≤5MeV. By combining the data with those for GT+ transitions from a recent 76Se(d,2He)76As measurement, the nuclear matrix element for the 76Ge 2νββ decay has been evaluated. A lack of correlation among the GT transition strengths feeding the same levels from the two different directions is observed. The impact on the 76Ge 2νββ decay nuclear matrix element is discussed.",

author = "Thies, {J. H.} and D. Frekers and T. Adachi and M. Dozono and H. Ejiri and H. Fujita and Y. Fujita and M. Fujiwara and Grewe, {E. W.} and K. Hatanaka and P. Heinrichs and D. Ishikawa and Khai, {N. T.} and A. Lennarz and H. Matsubara and H. Okamura and Oo, {Y. Y.} and P. Puppe and T. Ruhe and K. Suda and A. Tamii and Yoshida, {H. P.} and Zegers, {R. G.T.}",

year = "2012",

month = jul,

day = "3",

doi = "10.1103/PhysRevC.86.014304",

language = "English",

volume = "86",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

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Thies, JH, Frekers, D, Adachi, T, Dozono, M, Ejiri, H, Fujita, H, Fujita, Y, Fujiwara, M, Grewe, EW, Hatanaka, K, Heinrichs, P, Ishikawa, D, Khai, NT, Lennarz, A, Matsubara, H, Okamura, H, Oo, YY, Puppe, P, Ruhe, T, Suda, K, Tamii, A, Yoshida, HP & Zegers, RGT 2012, 'The (3He,t) reaction on 76Ge, and the double-β-decay matrix element', Physical Review C - Nuclear Physics, vol. 86, no. 1, 014304. https://doi.org/10.1103/PhysRevC.86.014304

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T1 - The (3He,t) reaction on 76Ge, and the double-β-decay matrix element

AU - Thies, J. H.

AU - Frekers, D.

AU - Adachi, T.

AU - Dozono, M.

AU - Ejiri, H.

AU - Fujita, H.

AU - Fujita, Y.

AU - Fujiwara, M.

AU - Grewe, E. W.

AU - Hatanaka, K.

AU - Heinrichs, P.

AU - Ishikawa, D.

AU - Khai, N. T.

AU - Lennarz, A.

AU - Matsubara, H.

AU - Okamura, H.

AU - Oo, Y. Y.

AU - Puppe, P.

AU - Ruhe, T.

AU - Suda, K.

AU - Tamii, A.

AU - Yoshida, H. P.

AU - Zegers, R. G.T.

PY - 2012/7/3

Y1 - 2012/7/3

N2 - A 76Ge(3He,t)76As charge-exchange experiment at an incident energy of 420 MeV has been performed with an energy resolution of 30 keV. The Gamow-Teller GT- strength distribution in 76As, which is the intermediate nucleus in the double-beta (ββ) decay of 76Ge, has been extracted. An unusually strong fragmentation of the GT- strength is observed even at low excitation energies of Ex≤5MeV. By combining the data with those for GT+ transitions from a recent 76Se(d,2He)76As measurement, the nuclear matrix element for the 76Ge 2νββ decay has been evaluated. A lack of correlation among the GT transition strengths feeding the same levels from the two different directions is observed. The impact on the 76Ge 2νββ decay nuclear matrix element is discussed.

AB - A 76Ge(3He,t)76As charge-exchange experiment at an incident energy of 420 MeV has been performed with an energy resolution of 30 keV. The Gamow-Teller GT- strength distribution in 76As, which is the intermediate nucleus in the double-beta (ββ) decay of 76Ge, has been extracted. An unusually strong fragmentation of the GT- strength is observed even at low excitation energies of Ex≤5MeV. By combining the data with those for GT+ transitions from a recent 76Se(d,2He)76As measurement, the nuclear matrix element for the 76Ge 2νββ decay has been evaluated. A lack of correlation among the GT transition strengths feeding the same levels from the two different directions is observed. The impact on the 76Ge 2νββ decay nuclear matrix element is discussed.

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JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

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The (3He,t) reaction on 76Ge, and the double-β-decay matrix element

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