Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements

K. Yako; M. Sasano; K. Miki; H. Sakai; M. Dozono; D. Frekers; M. B. Greenfield; K. Hatanaka; E. Ihara; M. Kato; T. Kawabata; H. Kuboki; Y. Maeda; H. Matsubara; K. Muto; S. Noji; H. Okamura; T. H. Okabe; S. Sakaguchi; Y. Sakemi; Y. Sasamoto; K. Sekiguchi; Y. Shimizu; K. Suda; Y. Tameshige; A. Tamii; T. Uesaka; T. Wakasa; H. Zheng

doi:10.1103/PhysRevLett.103.012503

Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements

K. Yako
, M. Sasano
, K. Miki
, H. Sakai
, M. Dozono
, D. Frekers
, M. B. Greenfield
, K. Hatanaka
, E. Ihara
, M. Kato
, T. Kawabata
, H. Kuboki
, Y. Maeda
, H. Matsubara
, K. Muto
, S. Noji
, H. Okamura
, T. H. Okabe
, S. Sakaguchi
, Y. Sakemi

Y. Sasamoto, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, T. Uesaka, T. Wakasa, H. Zheng

Research output: Contribution to journal › Article › peer-review

105 Citations (Scopus)

Abstract

The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete.

Original language	English
Article number	012503
Journal	Physical Review Letters
Volume	103
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.103.012503
Publication status	Published - 06-08-2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.103.012503

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Yako, K., Sasano, M., Miki, K., Sakai, H., Dozono, M., Frekers, D., Greenfield, M. B., Hatanaka, K., Ihara, E., Kato, M., Kawabata, T., Kuboki, H., Maeda, Y., Matsubara, H., Muto, K., Noji, S., Okamura, H., Okabe, T. H., Sakaguchi, S., ... Zheng, H. (2009). Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements. Physical Review Letters, 103(1), Article 012503. https://doi.org/10.1103/PhysRevLett.103.012503

@article{0ca626a4e46e4406b60339f31a365712,

title = "Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements",

abstract = "The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete.",

author = "K. Yako and M. Sasano and K. Miki and H. Sakai and M. Dozono and D. Frekers and Greenfield, \{M. B.\} and K. Hatanaka and E. Ihara and M. Kato and T. Kawabata and H. Kuboki and Y. Maeda and H. Matsubara and K. Muto and S. Noji and H. Okamura and Okabe, \{T. H.\} and S. Sakaguchi and Y. Sakemi and Y. Sasamoto and K. Sekiguchi and Y. Shimizu and K. Suda and Y. Tameshige and A. Tamii and T. Uesaka and T. Wakasa and H. Zheng",

year = "2009",

month = aug,

day = "6",

doi = "10.1103/PhysRevLett.103.012503",

language = "English",

volume = "103",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "1",

}

Yako, K, Sasano, M, Miki, K, Sakai, H, Dozono, M, Frekers, D, Greenfield, MB, Hatanaka, K, Ihara, E, Kato, M, Kawabata, T, Kuboki, H, Maeda, Y, Matsubara, H, Muto, K, Noji, S, Okamura, H, Okabe, TH, Sakaguchi, S, Sakemi, Y, Sasamoto, Y, Sekiguchi, K, Shimizu, Y, Suda, K, Tameshige, Y, Tamii, A, Uesaka, T, Wakasa, T & Zheng, H 2009, 'Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements', Physical Review Letters, vol. 103, no. 1, 012503. https://doi.org/10.1103/PhysRevLett.103.012503

TY - JOUR

T1 - Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements

AU - Yako, K.

AU - Sasano, M.

AU - Miki, K.

AU - Sakai, H.

AU - Dozono, M.

AU - Frekers, D.

AU - Greenfield, M. B.

AU - Hatanaka, K.

AU - Ihara, E.

AU - Kato, M.

AU - Kawabata, T.

AU - Kuboki, H.

AU - Maeda, Y.

AU - Matsubara, H.

AU - Muto, K.

AU - Noji, S.

AU - Okamura, H.

AU - Okabe, T. H.

AU - Sakaguchi, S.

AU - Sakemi, Y.

AU - Sasamoto, Y.

AU - Sekiguchi, K.

AU - Shimizu, Y.

AU - Suda, K.

AU - Tameshige, Y.

AU - Tamii, A.

AU - Uesaka, T.

AU - Wakasa, T.

AU - Zheng, H.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete.

AB - The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete.

UR - https://www.scopus.com/pages/publications/68649093282

UR - https://www.scopus.com/pages/publications/68649093282#tab=citedBy

U2 - 10.1103/PhysRevLett.103.012503

DO - 10.1103/PhysRevLett.103.012503

M3 - Article

AN - SCOPUS:68649093282

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

M1 - 012503

ER -

Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements

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