Published 2011
| Version v1
Conference paper
The N = 16 spherical shell closure in 24O
- Creators
- Tshoo, K.
- Satou, Y.
- Bhang, H.
- Choi, S.
- Nakamura, T.
- Kondo, Y.
- Deguchi, S.
- Kawada, Y.
- Kobayashi, N.
- Nakayama, Y.
- Tanaka, K. N.
- Tanaka, N.
- Aoi, N.
- Ishihara, M.
- Motobayashi, T.
- Otsu, H.
- Sakurai, H.
- Takeuchi, S.
- Togano, Y.
- Yoneda, K.
- Li, Z. H.
- Delaunay, F.
- Gibelin, J.
- Marqués, F.M.
- Orr, N.A.
- Honda, T.
- Matsushita, M.
- Kobayashi, T.
- Miyashita, Y.
- Sumikama, T.
- Yoshinaga, K.
- Shimoura, S.
- Sohler, D.
- Zheng, T.
- Cao, Z. X.
- Others:
- Department of Physics [Tokyo] ; Tokyo Institure of Technology
- Institut de Biologie Valrose (IBV) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
- Laboratoire de physique corpusculaire de Caen (LPCC) ; Université de Caen Normandie (UNICAEN) ; Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN) ; Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
- Department of Physics [Sendai] ; Tohoku University [Sendai]
- Institute for Nuclear Research [Budapest] (ATOMKI) ; Hungarian Academy of Sciences (MTA)
Description
The unbound excited states of the neutron drip-line isotope 24O have been investigated via the 24O(p,p')23O+n reaction in inverse kinematics at a beam energy of 62 MeV/nucleon. The decay energy spectrum of 24O* was reconstructed from the momenta of 23O and the neutron. The spin-parity of the first excited state, observed at Ex = 4.65 +/- 0.14 MeV, was determined to be Jpi = 2+ from the angular distribution of the cross section. Higher lying states were also observed. The quadrupole transition parameter beta2 of the 2+ state was deduced, for the first time, to be 0.15 +/- 0.04. The relatively high excitation energy and small beta2 value are indicative of the N = 16 shell closure in 24O.
Additional details
- URL
- https://hal.in2p3.fr/in2p3-00785481
- URN
- urn:oai:HAL:in2p3-00785481v1
- Origin repository
- UNICA