Electric dipole strength of 52Ca

Togano, Y.; Nakamura, T.; Kobayashi, T.; Aumann, T.; Baba, H.; Boretzky, K.; Bracco, A.; Browne, F.; Camera, F.; Chae, H.; Chan, S.; Chiga, N.; Choi, H.; Cortes, L.; Delaunay, F.; Dell'Aquila, D.; Elekes, Z.; Fujino, Y.; Gasparic, I.; Gibelin, J.; Hahn, K. I.; Halasz, Z.; Horvat, A.; Ieki, K.; Inakura, T.; Isobe, T.; Kim, D.; Kim, G.; Ko, H.; Kondo, Y.; Korper, D.; Koyama, S.; Kubota, Y.; Kuti, I.; Matsumoto, M.; Matta, A.; Million, B.; Motobayashi, T.; Murray, I.; Nakatsuka, N.; Orr, N.; Otsu, H.; Panin, V.; Park, S. Y.; Rodriguez, W.; Rossi, D.; Saito, A. T.; Sasano, M.; Sato, H.; Shimizu, Y.; Simon, H.; Stuhl, L.; Sun, Y. L.; Takeuchi, S.; Tomai, T.; Tornqvist, H.; Uesaka, T.; Vaquero, V.; Wieland, O.; Wimmer, K.; Yamada, H.; Yang, Z.; Yasuda, M.; Yoneda, K.

doi:10.1393/ncc/i2024-24030-3

The electric dipole strength above the one-neutron separation energy has been measured in the neutron-rich nucleus 52Ca using the Coulomb excitation at 223 MeV/nucleon in inverse kinematics. The γ-ray detector array CATANA, the neutron detector NeuLAND demonstrator, and the SAMURAI spectrometer at RIKEN Nishina Center were combined to reconstruct the excitation energy of 52Ca. A observed sharp peak at the very low neutron energy in the 52Ca → 51Ca +n channel indicates that 52Ca has a sizable amount of dipole strength just above the one neutron threshold.

Electric dipole strength of 52Ca / Togano, Y., Nakamura, T., Kobayashi, T., Aumann, T., Baba, H., Boretzky, K., Bracco, A., Browne, F., Camera, F., Chae, H., Chan, S., Chiga, N., Choi, H., Cortes, L., Delaunay, F., Dell'Aquila, D., Elekes, Z., Fujino, Y., Gasparic, I., Gibelin, J., et al.. - In: IL NUOVO CIMENTO C. - ISSN 2037-4909. - 47:2(2024). [10.1393/ncc/i2024-24030-3]