Observation of low- and high-energy gamow-teller phonon excitations in nuclei

Y. Fujita, H. Fujita, T. Adachi, C. L. Bai, A. Algora, G. P A Berg, P. Von Brentano, G. Colò, M. Csatlós, J. M. Deaven, E. Estevez-Aguado, C. Fransen, D. De Frenne, K. Fujita, E. Ganioǧlu, C. J. Guess, J. Gulyás, K. Hatanaka, K. Hirota, M. Honma & 33 others D. Ishikawa, E. Jacobs, A. Krasznahorkay, H. Matsubara, K. Matsuyanagi, R. Meharchand, F. Molina, K. Muto, K. Nakanishi, A. Negret, H. Okamura, H. J. Ong, T. Otsuka, N. Pietralla, G. Perdikakis, L. Popescu, B. Rubio, H. Sagawa, P. Sarriguren, C. Scholl, Y. Shimbara, Y. Shimizu, G. Susoy, T. Suzuki, Y. Tameshige, A. Tamii, J. H. Thies, M. Uchida, T. Wakasa, M. Yosoi, R. G T Zegers, K. O. Zell, J. Zenihiro

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Abstract

Gamow-Teller (GT) transitions in atomic nuclei are sensitive to both nuclear shell structure and effective residual interactions. The nuclear GT excitations were studied for the mass number A=42, 46, 50, and 54 "f-shell" nuclei in (He3, t) charge-exchange reactions. In the Ca42→Sc42 reaction, most of the GT strength is concentrated in the lowest excited state at 0.6 MeV, suggesting the existence of a low-energy GT phonon excitation. As A increases, a high-energy GT phonon excitation develops in the 6-11 MeV region. In the Fe54→Co54 reaction, the high-energy GT phonon excitation mainly carries the GT strength. The existence of these two GT phonon excitations are attributed to the 2 fermionic degrees of freedom in nuclei.

Original languageEnglish
Article number112502
JournalPhysical Review Letters
Volume112
Issue number11
DOIs
Publication statusPublished - Mar 18 2014

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nuclei
excitation
energy
charge exchange
degrees of freedom
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Fujita, Y., Fujita, H., Adachi, T., Bai, C. L., Algora, A., Berg, G. P. A., ... Zenihiro, J. (2014). Observation of low- and high-energy gamow-teller phonon excitations in nuclei. Physical Review Letters, 112(11), [112502]. https://doi.org/10.1103/PhysRevLett.112.112502

Observation of low- and high-energy gamow-teller phonon excitations in nuclei. / Fujita, Y.; Fujita, H.; Adachi, T.; Bai, C. L.; Algora, A.; Berg, G. P A; Von Brentano, P.; Colò, G.; Csatlós, M.; Deaven, J. M.; Estevez-Aguado, E.; Fransen, C.; De Frenne, D.; Fujita, K.; Ganioǧlu, E.; Guess, C. J.; Gulyás, J.; Hatanaka, K.; Hirota, K.; Honma, M.; Ishikawa, D.; Jacobs, E.; Krasznahorkay, A.; Matsubara, H.; Matsuyanagi, K.; Meharchand, R.; Molina, F.; Muto, K.; Nakanishi, K.; Negret, A.; Okamura, H.; Ong, H. J.; Otsuka, T.; Pietralla, N.; Perdikakis, G.; Popescu, L.; Rubio, B.; Sagawa, H.; Sarriguren, P.; Scholl, C.; Shimbara, Y.; Shimizu, Y.; Susoy, G.; Suzuki, T.; Tameshige, Y.; Tamii, A.; Thies, J. H.; Uchida, M.; Wakasa, T.; Yosoi, M.; Zegers, R. G T; Zell, K. O.; Zenihiro, J.

In: Physical Review Letters, Vol. 112, No. 11, 112502, 18.03.2014.

Research output: Contribution to journalArticle

Fujita, Y, Fujita, H, Adachi, T, Bai, CL, Algora, A, Berg, GPA, Von Brentano, P, Colò, G, Csatlós, M, Deaven, JM, Estevez-Aguado, E, Fransen, C, De Frenne, D, Fujita, K, Ganioǧlu, E, Guess, CJ, Gulyás, J, Hatanaka, K, Hirota, K, Honma, M, Ishikawa, D, Jacobs, E, Krasznahorkay, A, Matsubara, H, Matsuyanagi, K, Meharchand, R, Molina, F, Muto, K, Nakanishi, K, Negret, A, Okamura, H, Ong, HJ, Otsuka, T, Pietralla, N, Perdikakis, G, Popescu, L, Rubio, B, Sagawa, H, Sarriguren, P, Scholl, C, Shimbara, Y, Shimizu, Y, Susoy, G, Suzuki, T, Tameshige, Y, Tamii, A, Thies, JH, Uchida, M, Wakasa, T, Yosoi, M, Zegers, RGT, Zell, KO & Zenihiro, J 2014, 'Observation of low- and high-energy gamow-teller phonon excitations in nuclei', Physical Review Letters, vol. 112, no. 11, 112502. https://doi.org/10.1103/PhysRevLett.112.112502
Fujita, Y. ; Fujita, H. ; Adachi, T. ; Bai, C. L. ; Algora, A. ; Berg, G. P A ; Von Brentano, P. ; Colò, G. ; Csatlós, M. ; Deaven, J. M. ; Estevez-Aguado, E. ; Fransen, C. ; De Frenne, D. ; Fujita, K. ; Ganioǧlu, E. ; Guess, C. J. ; Gulyás, J. ; Hatanaka, K. ; Hirota, K. ; Honma, M. ; Ishikawa, D. ; Jacobs, E. ; Krasznahorkay, A. ; Matsubara, H. ; Matsuyanagi, K. ; Meharchand, R. ; Molina, F. ; Muto, K. ; Nakanishi, K. ; Negret, A. ; Okamura, H. ; Ong, H. J. ; Otsuka, T. ; Pietralla, N. ; Perdikakis, G. ; Popescu, L. ; Rubio, B. ; Sagawa, H. ; Sarriguren, P. ; Scholl, C. ; Shimbara, Y. ; Shimizu, Y. ; Susoy, G. ; Suzuki, T. ; Tameshige, Y. ; Tamii, A. ; Thies, J. H. ; Uchida, M. ; Wakasa, T. ; Yosoi, M. ; Zegers, R. G T ; Zell, K. O. ; Zenihiro, J. / Observation of low- and high-energy gamow-teller phonon excitations in nuclei. In: Physical Review Letters. 2014 ; Vol. 112, No. 11.
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title = "Observation of low- and high-energy gamow-teller phonon excitations in nuclei",
abstract = "Gamow-Teller (GT) transitions in atomic nuclei are sensitive to both nuclear shell structure and effective residual interactions. The nuclear GT excitations were studied for the mass number A=42, 46, 50, and 54 {"}f-shell{"} nuclei in (He3, t) charge-exchange reactions. In the Ca42→Sc42 reaction, most of the GT strength is concentrated in the lowest excited state at 0.6 MeV, suggesting the existence of a low-energy GT phonon excitation. As A increases, a high-energy GT phonon excitation develops in the 6-11 MeV region. In the Fe54→Co54 reaction, the high-energy GT phonon excitation mainly carries the GT strength. The existence of these two GT phonon excitations are attributed to the 2 fermionic degrees of freedom in nuclei.",
author = "Y. Fujita and H. Fujita and T. Adachi and Bai, {C. L.} and A. Algora and Berg, {G. P A} and {Von Brentano}, P. and G. Col{\`o} and M. Csatl{\'o}s and Deaven, {J. M.} and E. Estevez-Aguado and C. Fransen and {De Frenne}, D. and K. Fujita and E. Ganioǧlu and Guess, {C. J.} and J. Guly{\'a}s and K. Hatanaka and K. Hirota and M. Honma and D. Ishikawa and E. Jacobs and A. Krasznahorkay and H. Matsubara and K. Matsuyanagi and R. Meharchand and F. Molina and K. Muto and K. Nakanishi and A. Negret and H. Okamura and Ong, {H. J.} and T. Otsuka and N. Pietralla and G. Perdikakis and L. Popescu and B. Rubio and H. Sagawa and P. Sarriguren and C. Scholl and Y. Shimbara and Y. Shimizu and G. Susoy and T. Suzuki and Y. Tameshige and A. Tamii and Thies, {J. H.} and M. Uchida and T. Wakasa and M. Yosoi and Zegers, {R. G T} and Zell, {K. O.} and J. Zenihiro",
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T1 - Observation of low- and high-energy gamow-teller phonon excitations in nuclei

AU - Fujita, Y.

AU - Fujita, H.

AU - Adachi, T.

AU - Bai, C. L.

AU - Algora, A.

AU - Berg, G. P A

AU - Von Brentano, P.

AU - Colò, G.

AU - Csatlós, M.

AU - Deaven, J. M.

AU - Estevez-Aguado, E.

AU - Fransen, C.

AU - De Frenne, D.

AU - Fujita, K.

AU - Ganioǧlu, E.

AU - Guess, C. J.

AU - Gulyás, J.

AU - Hatanaka, K.

AU - Hirota, K.

AU - Honma, M.

AU - Ishikawa, D.

AU - Jacobs, E.

AU - Krasznahorkay, A.

AU - Matsubara, H.

AU - Matsuyanagi, K.

AU - Meharchand, R.

AU - Molina, F.

AU - Muto, K.

AU - Nakanishi, K.

AU - Negret, A.

AU - Okamura, H.

AU - Ong, H. J.

AU - Otsuka, T.

AU - Pietralla, N.

AU - Perdikakis, G.

AU - Popescu, L.

AU - Rubio, B.

AU - Sagawa, H.

AU - Sarriguren, P.

AU - Scholl, C.

AU - Shimbara, Y.

AU - Shimizu, Y.

AU - Susoy, G.

AU - Suzuki, T.

AU - Tameshige, Y.

AU - Tamii, A.

AU - Thies, J. H.

AU - Uchida, M.

AU - Wakasa, T.

AU - Yosoi, M.

AU - Zegers, R. G T

AU - Zell, K. O.

AU - Zenihiro, J.

PY - 2014/3/18

Y1 - 2014/3/18

N2 - Gamow-Teller (GT) transitions in atomic nuclei are sensitive to both nuclear shell structure and effective residual interactions. The nuclear GT excitations were studied for the mass number A=42, 46, 50, and 54 "f-shell" nuclei in (He3, t) charge-exchange reactions. In the Ca42→Sc42 reaction, most of the GT strength is concentrated in the lowest excited state at 0.6 MeV, suggesting the existence of a low-energy GT phonon excitation. As A increases, a high-energy GT phonon excitation develops in the 6-11 MeV region. In the Fe54→Co54 reaction, the high-energy GT phonon excitation mainly carries the GT strength. The existence of these two GT phonon excitations are attributed to the 2 fermionic degrees of freedom in nuclei.

AB - Gamow-Teller (GT) transitions in atomic nuclei are sensitive to both nuclear shell structure and effective residual interactions. The nuclear GT excitations were studied for the mass number A=42, 46, 50, and 54 "f-shell" nuclei in (He3, t) charge-exchange reactions. In the Ca42→Sc42 reaction, most of the GT strength is concentrated in the lowest excited state at 0.6 MeV, suggesting the existence of a low-energy GT phonon excitation. As A increases, a high-energy GT phonon excitation develops in the 6-11 MeV region. In the Fe54→Co54 reaction, the high-energy GT phonon excitation mainly carries the GT strength. The existence of these two GT phonon excitations are attributed to the 2 fermionic degrees of freedom in nuclei.

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