Gamow-Teller strength in the continuum and quenching problem

T. Wakasa; K. Hatanaka; H. Sakai; S. Fujita; T. Nonaka; K. Yako; K. Sekiguchi; H. Okamura; T. Uesaka; H. Otsu; S. Ishida; N. Sakamoto; Y. Satou; T. Ohnishi; M. B. Greenfield

doi:10.1016/S0375-9474(01)00596-6

Gamow-Teller strength in the continuum and quenching problem

T. Wakasa, K. Hatanaka, H. Sakai, S. Fujita, T. Nonaka, K. Yako, K. Sekiguchi, H. Okamura, T. Uesaka, H. Otsu, S. Ishida, N. Sakamoto, Y. Satou, T. Ohnishi, M. B. Greenfield

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

4 Citations (Scopus)

Abstract

The double differential cross sections for θ_lab between 0.0° and 14.7° and the polarization transfer coefficient D_NN(0°) for the ²⁷ Al(p→, n→) reaction have been measured at a bombarding energy of 295 MeV. A multipole decomposition technique is applied for the cross section data to extract L = 0, 1, 2, and 3 contributions. A fairly large L = 0 Gamow-Teller (GT) contribution is observed in the continuum region up to 50 MeV, which could be in part ascribed to the quenched GT strength. A limit on the effect that the Δ(1232)-isobar nucleon-hole admixture has upon the GT strength is estimated.

Original language	English
Pages (from-to)	26-31
Number of pages	6
Journal	Nuclear Physics A
Volume	687
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(01)00596-6
Publication status	Published - 2001 Apr 23
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0375-9474(01)00596-6

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Gamow-Teller strength in the continuum and quenching problem. / Wakasa, T.; Hatanaka, K.; Sakai, H.; Fujita, S.; Nonaka, T.; Yako, K.; Sekiguchi, K.; Okamura, H.; Uesaka, T.; Otsu, H.; Ishida, S.; Sakamoto, N.; Satou, Y.; Ohnishi, T.; Greenfield, M. B.

In: Nuclear Physics A, Vol. 687, No. 1-2, 23.04.2001, p. 26-31.

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

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title = "Gamow-Teller strength in the continuum and quenching problem",

abstract = "The double differential cross sections for θlab between 0.0° and 14.7° and the polarization transfer coefficient DNN(0°) for the 27 Al(p→, n→) reaction have been measured at a bombarding energy of 295 MeV. A multipole decomposition technique is applied for the cross section data to extract L = 0, 1, 2, and 3 contributions. A fairly large L = 0 Gamow-Teller (GT) contribution is observed in the continuum region up to 50 MeV, which could be in part ascribed to the quenched GT strength. A limit on the effect that the Δ(1232)-isobar nucleon-hole admixture has upon the GT strength is estimated.",

author = "T. Wakasa and K. Hatanaka and H. Sakai and S. Fujita and T. Nonaka and K. Yako and K. Sekiguchi and H. Okamura and T. Uesaka and H. Otsu and S. Ishida and N. Sakamoto and Y. Satou and T. Ohnishi and Greenfield, {M. B.}",

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T1 - Gamow-Teller strength in the continuum and quenching problem

AU - Wakasa, T.

AU - Hatanaka, K.

AU - Sakai, H.

AU - Fujita, S.

AU - Nonaka, T.

AU - Yako, K.

AU - Sekiguchi, K.

AU - Okamura, H.

AU - Uesaka, T.

AU - Otsu, H.

AU - Ishida, S.

AU - Sakamoto, N.

AU - Satou, Y.

AU - Ohnishi, T.

AU - Greenfield, M. B.

PY - 2001/4/23

Y1 - 2001/4/23

N2 - The double differential cross sections for θlab between 0.0° and 14.7° and the polarization transfer coefficient DNN(0°) for the 27 Al(p→, n→) reaction have been measured at a bombarding energy of 295 MeV. A multipole decomposition technique is applied for the cross section data to extract L = 0, 1, 2, and 3 contributions. A fairly large L = 0 Gamow-Teller (GT) contribution is observed in the continuum region up to 50 MeV, which could be in part ascribed to the quenched GT strength. A limit on the effect that the Δ(1232)-isobar nucleon-hole admixture has upon the GT strength is estimated.

AB - The double differential cross sections for θlab between 0.0° and 14.7° and the polarization transfer coefficient DNN(0°) for the 27 Al(p→, n→) reaction have been measured at a bombarding energy of 295 MeV. A multipole decomposition technique is applied for the cross section data to extract L = 0, 1, 2, and 3 contributions. A fairly large L = 0 Gamow-Teller (GT) contribution is observed in the continuum region up to 50 MeV, which could be in part ascribed to the quenched GT strength. A limit on the effect that the Δ(1232)-isobar nucleon-hole admixture has upon the GT strength is estimated.

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