Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei

H. Matsubara, A. Tamii, H. Nakada, T. Adachi, J. Carter, M. Dozono, H. Fujita, Kunihiro Fujita, Y. Fujita, K. Hatanaka, W. Horiuchi, M. Itoh, T. Kawabata, S. Kuroita, Y. Maeda, P. Navrátil, P. Von Neumann-Cosel, R. Neveling, H. Okamura, L. PopescuI. Poltoratska, A. Richter, B. Rubio, H. Sakaguchi, Satoshi Sakaguchi, Y. Sakemi, Y. Sasamoto, Y. Shimbara, Y. Shimizu, F. D. Smit, K. Suda, Y. Tameshige, H. Tokieda, Y. Yamada, M. Yosoi, J. Zenihiro

研究成果: ジャーナルへの寄稿記事

20 引用 (Scopus)

抄録

Differential cross sections of isoscalar and isovector spin-M1 (0+→1+) transitions are measured using high-energy-resolution proton inelastic scattering at Ep=295MeV on Mg24, Si28, S32, and Ar36 at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to Ex=16MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.

元の言語英語
記事番号102501
ジャーナルPhysical Review Letters
115
発行部数10
DOI
出版物ステータス出版済み - 9 1 2015
外部発表Yes

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nuclei
excitation
cross sections
proton scattering
matrices
nuclear spin
inelastic scattering
quenching
symmetry
predictions
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Matsubara, H., Tamii, A., Nakada, H., Adachi, T., Carter, J., Dozono, M., ... Zenihiro, J. (2015). Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei. Physical Review Letters, 115(10), [102501]. https://doi.org/10.1103/PhysRevLett.115.102501

Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei. / Matsubara, H.; Tamii, A.; Nakada, H.; Adachi, T.; Carter, J.; Dozono, M.; Fujita, H.; Fujita, Kunihiro; Fujita, Y.; Hatanaka, K.; Horiuchi, W.; Itoh, M.; Kawabata, T.; Kuroita, S.; Maeda, Y.; Navrátil, P.; Von Neumann-Cosel, P.; Neveling, R.; Okamura, H.; Popescu, L.; Poltoratska, I.; Richter, A.; Rubio, B.; Sakaguchi, H.; Sakaguchi, Satoshi; Sakemi, Y.; Sasamoto, Y.; Shimbara, Y.; Shimizu, Y.; Smit, F. D.; Suda, K.; Tameshige, Y.; Tokieda, H.; Yamada, Y.; Yosoi, M.; Zenihiro, J.

:: Physical Review Letters, 巻 115, 番号 10, 102501, 01.09.2015.

研究成果: ジャーナルへの寄稿記事

Matsubara, H, Tamii, A, Nakada, H, Adachi, T, Carter, J, Dozono, M, Fujita, H, Fujita, K, Fujita, Y, Hatanaka, K, Horiuchi, W, Itoh, M, Kawabata, T, Kuroita, S, Maeda, Y, Navrátil, P, Von Neumann-Cosel, P, Neveling, R, Okamura, H, Popescu, L, Poltoratska, I, Richter, A, Rubio, B, Sakaguchi, H, Sakaguchi, S, Sakemi, Y, Sasamoto, Y, Shimbara, Y, Shimizu, Y, Smit, FD, Suda, K, Tameshige, Y, Tokieda, H, Yamada, Y, Yosoi, M & Zenihiro, J 2015, 'Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei', Physical Review Letters, 巻. 115, 番号 10, 102501. https://doi.org/10.1103/PhysRevLett.115.102501
Matsubara H, Tamii A, Nakada H, Adachi T, Carter J, Dozono M その他. Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei. Physical Review Letters. 2015 9 1;115(10). 102501. https://doi.org/10.1103/PhysRevLett.115.102501
Matsubara, H. ; Tamii, A. ; Nakada, H. ; Adachi, T. ; Carter, J. ; Dozono, M. ; Fujita, H. ; Fujita, Kunihiro ; Fujita, Y. ; Hatanaka, K. ; Horiuchi, W. ; Itoh, M. ; Kawabata, T. ; Kuroita, S. ; Maeda, Y. ; Navrátil, P. ; Von Neumann-Cosel, P. ; Neveling, R. ; Okamura, H. ; Popescu, L. ; Poltoratska, I. ; Richter, A. ; Rubio, B. ; Sakaguchi, H. ; Sakaguchi, Satoshi ; Sakemi, Y. ; Sasamoto, Y. ; Shimbara, Y. ; Shimizu, Y. ; Smit, F. D. ; Suda, K. ; Tameshige, Y. ; Tokieda, H. ; Yamada, Y. ; Yosoi, M. ; Zenihiro, J. / Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei. :: Physical Review Letters. 2015 ; 巻 115, 番号 10.
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abstract = "Differential cross sections of isoscalar and isovector spin-M1 (0+→1+) transitions are measured using high-energy-resolution proton inelastic scattering at Ep=295MeV on Mg24, Si28, S32, and Ar36 at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to Ex=16MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.",
author = "H. Matsubara and A. Tamii and H. Nakada and T. Adachi and J. Carter and M. Dozono and H. Fujita and Kunihiro Fujita and Y. Fujita and K. Hatanaka and W. Horiuchi and M. Itoh and T. Kawabata and S. Kuroita and Y. Maeda and P. Navr{\'a}til and {Von Neumann-Cosel}, P. and R. Neveling and H. Okamura and L. Popescu and I. Poltoratska and A. Richter and B. Rubio and H. Sakaguchi and Satoshi Sakaguchi and Y. Sakemi and Y. Sasamoto and Y. Shimbara and Y. Shimizu and Smit, {F. D.} and K. Suda and Y. Tameshige and H. Tokieda and Y. Yamada and M. Yosoi and J. Zenihiro",
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AU - Matsubara, H.

AU - Tamii, A.

AU - Nakada, H.

AU - Adachi, T.

AU - Carter, J.

AU - Dozono, M.

AU - Fujita, H.

AU - Fujita, Kunihiro

AU - Fujita, Y.

AU - Hatanaka, K.

AU - Horiuchi, W.

AU - Itoh, M.

AU - Kawabata, T.

AU - Kuroita, S.

AU - Maeda, Y.

AU - Navrátil, P.

AU - Von Neumann-Cosel, P.

AU - Neveling, R.

AU - Okamura, H.

AU - Popescu, L.

AU - Poltoratska, I.

AU - Richter, A.

AU - Rubio, B.

AU - Sakaguchi, H.

AU - Sakaguchi, Satoshi

AU - Sakemi, Y.

AU - Sasamoto, Y.

AU - Shimbara, Y.

AU - Shimizu, Y.

AU - Smit, F. D.

AU - Suda, K.

AU - Tameshige, Y.

AU - Tokieda, H.

AU - Yamada, Y.

AU - Yosoi, M.

AU - Zenihiro, J.

PY - 2015/9/1

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N2 - Differential cross sections of isoscalar and isovector spin-M1 (0+→1+) transitions are measured using high-energy-resolution proton inelastic scattering at Ep=295MeV on Mg24, Si28, S32, and Ar36 at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to Ex=16MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.

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