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Conference Papers Year : 2014

Neutron occupancy of 0d5/2 orbital in 24O

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1
K. Tshoo
  • Function : Author
Y. Satou
  • Function : Author
H. Bhang
  • Function : Author
S. Choi
  • Function : Author
T. Nakamura
  • Function : Author
Y. Kondo
  • Function : Author
S. Deguchi
  • Function : Author
Y. Kawada
  • Function : Author
N. Kobayashi
  • Function : Author
Y. Nakayama
  • Function : Author
K.N. Tanaka
  • Function : Author
N. Tanaka
  • Function : Author
Y. Togano
  • Function : Author
N. Aoi
  • Function : Author
M. Ishihara
  • Function : Author
T. Motobayashi
  • Function : Author
H. Otsu
  • Function : Author
H. Sakurai
S. Takeuchi
  • Function : Author
K. Yoneda
  • Function : Author
J. Gibelin
F.M. Marqués
  • Function : Author
  • PersonId : 941129
N.A. Orr
  • Function : Author
  • PersonId : 940479
T. Honda
  • Function : Author
M. Matsushita
  • Function : Author
T. Kobayashi
  • Function : Author
Y. Miyashita
  • Function : Author
T. Sumikama
K. Yoshinaga
  • Function : Author
S. Shimoura
  • Function : Author
D. Sohler
T. Zheng
  • Function : Author
Z.X. Cao
  • Function : Author
Z.H. Li
  • Function : Author

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.

Dates and versions

in2p3-01017235 , version 1 (02-07-2014)

Identifiers

Cite

K. Tshoo, Y. Satou, H. Bhang, S. Choi, T. Nakamura, et al.. Neutron occupancy of 0d5/2 orbital in 24O. INPC 2013 - International Nuclear Physics Conference, 2013, Firenze, Italy. pp.02103, ⟨10.1051/epjconf/20146602103⟩. ⟨in2p3-01017235⟩
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