EPJ Web of Conferences (Mar 2014)
Neutron occupancy of 0d5/2 orbital in 24O
- 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.,
- Togano Y.,
- Aoi N.,
- Ishihara M.,
- Motobayashi T.,
- Otsu H.,
- Sakurai H.,
- Takeuchi S.,
- Yoneda K.,
- 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.,
- Li Z.H.
Affiliations
- Tshoo K.
- RISP, Institute for Basic Science
- Satou Y.
- Department of Physics and Astronomy, Seoul National University
- Bhang H.
- Department of Physics and Astronomy, Seoul National University
- Choi S.
- Department of Physics and Astronomy, Seoul National University
- Nakamura T.
- Department of Physics, Tokyo Institute of Technology
- Kondo Y.
- Department of Physics, Tokyo Institute of Technology
- Deguchi S.
- Department of Physics, Tokyo Institute of Technology
- Kawada Y.
- Department of Physics, Tokyo Institute of Technology
- Kobayashi N.
- Department of Physics, University of Tokyo
- Nakayama Y.
- Department of Physics, Tokyo Institute of Technology
- Tanaka K.N.
- Department of Physics, Tokyo Institute of Technology
- Tanaka N.
- Department of Physics, Tokyo Institute of Technology
- Togano Y.
- Department of Physics, Tokyo Institute of Technology
- Aoi N.
- Research Center for Nuclear Physics, Osaka University
- Ishihara M.
- RIKEN Nishina Center
- Motobayashi T.
- RIKEN Nishina Center
- Otsu H.
- RIKEN Nishina Center
- Sakurai H.
- RIKEN Nishina Center
- Takeuchi S.
- RIKEN Nishina Center
- Yoneda K.
- RIKEN Nishina Center
- Delaunay F.
- LPC-Caen, ENSICAEN, Université de Caen
- Gibelin J.
- LPC-Caen, ENSICAEN, Université de Caen
- Marqués F.M.
- LPC-Caen, ENSICAEN, Université de Caen
- Orr N.A.
- LPC-Caen, ENSICAEN, Université de Caen
- Honda T.
- Department of Physics, Rikkyo University
- Matsushita M.
- Center for Nuclear Study, University of Tokyo
- Kobayashi T.
- Center for Nuclear Study, University of Tokyo
- Miyashita Y.
- Department of Physics, Tokyo University of Science
- Sumikama T.
- Department of Physics, Tohoku University, Aoba
- Yoshinaga K.
- Department of Physics, Tokyo University of Science
- Shimoura S.
- Center for Nuclear Study, University of Tokyo
- Sohler D.
- Institute for Nuclear Research of the Hungarian Academy of Sciences
- Zheng T.
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
- Cao Z.X.
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
- Li Z.H.
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University
- DOI
- https://doi.org/10.1051/epjconf/20146602103
- Journal volume & issue
-
Vol. 66
p. 02103
Abstract
The partial one-neutron removal cross section of 24O leading to the first excited state in 23O has been measured to be 65.7 ± 5.3 mb with a proton target in inverse kinematics at the beam energy of 62 MeV/nucleon. The decay energy spectrum of the neutron unbound state of 23O was reconstructed from the measured four momenta of 22O and the emitted neutron. A sharp peak was observed at Edecay = 48 ± 3 keV, confirming the previous measurements. The measured partial longitudinal momentum distribution of 23O* showed the d-wave knockout character, providing a support for the Jπ assignment of 5/2+ for this state. The spectroscopic factor for the neutrons in 0d5/2 orbital was deduced, for the first time, to be C2S(0d5/2) = 3.7 ± 0.3 (preliminary) by comparing with the result of Glauber model. The relatively large spectroscopic factor supports the N = 16 shell closure in the neutron drip-line nucleus 24O.
