Elsevier

Nuclear Physics A

Volume 448, Issue 2, 20 January 1986, Pages 205-220
Nuclear Physics A

The 12C(d, p)13C reaction at Ed = 30MeV and positive-parity states in 13C

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Abstract

The 12C(d, p)13C reaction has been studied at Ed = 30MeV. All the known positive-parity states of 13C below 10 MeV in excitation energy, including the 72+ and 92+ states, are observed in this reaction. The angular distributions for these positive-parity bound and unbound states are analyzed in CCBA framework. The 13C wave functions, which reproduce the resonant and nonresonant scattering of neutrons from 12C, also give good accounts of the experimentally observed angular distributions and energy spectra of outgoing protons in the 12C(d, p)13C reaction. In most cases the cross-section magnitude and the angular distribution shape are primarily determined by the 0+j component, even if it is only a small fraction of the total wave function. An exception is the 72+ state, where the main contribution comes from the 2+d52 component. The inclusion of the 4+ state in 12C and the g92 and g72 neutron components in the n + 12C system has a very small effect on the low-spin states, but is indispensable for a good fit to the 72+ and 92+ angular distributions. The transitions to the negative-parity states, 121, 321, 52, 72 and 123, are also observed experimentally, and are analyzed by DWBA.

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Cited by (44)

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a

Department of Physics, Faculty of Science and Technology, Science University of Tokyo, Noda, Chiba, Japan.

b

School of Physics, University of Melbourne, Parkville 3052, Victoria, Australia.

c

Department of Physics, Kyoto University, Kyoto, Japan.

d

Institute for Nuclear Study, University of Tokyo, Tanashi, Tokyo, Japan.

e

Department of Physics and Research Center of Ion Beam Technology, Hosei University, Tokyo, Japan.

f

Institute of Physics, College of Arts and Sciences, University of Tokyo, Tokyo, Japan.

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