https://doi.org/10.1140/epja/s10050-021-00345-7
Regular Article - Experimental Physics
Confirmation of Giant Pairing Vibration evidence in C(O,O)C reactions at 275 MeV
1
Dipartimento di Fisica e Astronomia “Ettore Majorana”, Università di Catania, Catania, Italy
2
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Sud, Catania, Italy
3
Instituto de Fisica, Universidade Federal Fluminense, Niterói, Brazil
Received:
1
December
2020
Accepted:
3
January
2021
Published online:
21
January
2021
The Giant Pairing Vibration (GPV) is a correlated two-nucleon excitation mode in atomic nuclei predicted long time ago. It is expected to be excited in two-nucleon transfer reactions, similarly to the pairing vibrations feeding the ground states of even-even nuclei near shell-closure. Recent experiments have provided evidence for this mode in C and C nuclei populated via C,C(O,O)C,C two-neutron transfer reactions at 84 MeV beam energy. In the present paper, new data show the persistence of the same structures in the energy spectra of C and C populated by the same reactions at a higher bombarding energy of 275 MeV. The extracted centroid, width, spin-parity and transition probability fully agree with the previous observation thus giving a robust confirmation that the GPV mode is populated in such transfer reactions.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021