by 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, Ganioğlu, 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. and Zenihiro, J
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 ((3)He, t) charge-exchange reactions. In the (42)Ca → (42)Sc 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 (54)Fe → (54)Co 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.
Reference:
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, Ganioğlu, 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. and Zenihiro, J, "Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei", Physical Review Letters, vol. 112, no. 11, pp. 112502, 2014.
Bibtex Entry:
@article{Fujita2014,
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 ((3)He, t) charge-exchange reactions. In the (42)Ca → (42)Sc 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 (54)Fe → (54)Co 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 = {Fujita, Y. and Fujita, H. and Adachi, T and Bai, C. L. and Algora, A and Berg, G. P. A. and von Brentano, P and Col{\`{o}}, G and Csatl{\'{o}}s, M and Deaven, J. M. and Estevez-Aguado, E and Fransen, C and {De Frenne}, D and Fujita, K and Ganioğlu, E and Guess, C. J. and Guly{\'{a}}s, J and Hatanaka, K and Hirota, K and Honma, M and Ishikawa, D and Jacobs, E and Krasznahorkay, A and Matsubara, H and Matsuyanagi, K and Meharchand, R and Molina, F and Muto, K and Nakanishi, K and Negret, A and Okamura, H and Ong, H. J. and Otsuka, T and Pietralla, N and Perdikakis, G and Popescu, L and Rubio, B and Sagawa, H and Sarriguren, P and Scholl, C and Shimbara, Y and Shimizu, Y and Susoy, G and Suzuki, T and Tameshige, Y and Tamii, A and Thies, J. H. and Uchida, M and Wakasa, T and Yosoi, M and Zegers, R. G. T. and Zell, K. O. and Zenihiro, J},
doi = {10.1103/PhysRevLett.112.112502},
issn = {0031-9007},
journal = {Physical Review Letters},
month = {mar},
number = {11},
pages = {112502},
pmid = {24702355},
title = {{Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei}},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.112.112502},
volume = {112},
year = {2014}
}