Effects of repulsive three-body force in 12C + 12C scattering at 100A MeV

W.W. Qu; G.L. Zhang; S. Terashima; T. Furumoto; Y. Ayyad; Z.Q. Chen; C.L. Guo; A. Inoue; X.Y. Le; H.J. Ong; D.Y. Pang; H. Sakaguchi; Y. Sakuragi; B.H. Sun; A. Tamii; I. Tanihata; T.F. Wang; R. Wada; Y. Yamamoto

doi:10.1016/j.physletb.2015.10.008

Physics Letters B (Dec 2015)

Effects of repulsive three-body force in 12C + 12C scattering at 100A MeV

W.W. Qu,
G.L. Zhang,
S. Terashima,
T. Furumoto,
Y. Ayyad,
Z.Q. Chen,
C.L. Guo,
A. Inoue,
X.Y. Le,
H.J. Ong,
D.Y. Pang,
H. Sakaguchi,
Y. Sakuragi,
B.H. Sun,
A. Tamii,
I. Tanihata,
T.F. Wang,
R. Wada,
Y. Yamamoto

Affiliations

W.W. Qu: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
G.L. Zhang: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
S. Terashima: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
T. Furumoto: National Institute of Technology, Ichinoseki College, Ichinoseki, Iwate 021-8511, Japan
Y. Ayyad: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
Z.Q. Chen: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
C.L. Guo: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
A. Inoue: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
X.Y. Le: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
H.J. Ong: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
D.Y. Pang: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
H. Sakaguchi: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
Y. Sakuragi: Department of Physics, Osaka City University, Osaka 558-8585, Japan
B.H. Sun: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
A. Tamii: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
I. Tanihata: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
T.F. Wang: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
R. Wada: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Y. Yamamoto: RIKEN Nishina Center, Wako, Saitama 351-0198, Japan

DOI: https://doi.org/10.1016/j.physletb.2015.10.008
Journal volume & issue: Vol. 751, no. C
pp. 1 – 6

Abstract

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The angular distribution of 12C + 12C scattering at an incident energy of 100A MeV has been measured. The elastic and inelastic scatterings in 12C to the excitation energies of up to ∼45 MeV were measured simultaneously for the first time with the high-resolution Grand Raiden spectrometer at the Research Center for Nuclear Physics (RCNP). The angular distributions of the elastic scattering to the ground state (01+) and inelastic scattering to the 4.44 MeV (21+) excited state were precisely obtained in the angular range of 1.0°–7.5° with a step of 0.1°. Additionally, the angular distribution was obtained for the sum of the cross sections for excitation energies above the 4.44 MeV state up to 11 MeV, which includes the 7.65 MeV (02+), 9.64 MeV (31−), and 10.30 MeV (22+) states, in addition to probably the simultaneous excitation of the 4.44 MeV state in the projectile and the target nuclei. Those combined data provide a means to study the effects of channel coupling on the elastic cross section. The observed angular distributions are compared with theoretical calculations based on three double-folding models with complex G-matrix interactions, the CEG07b, MPa, and ESC models. The importance of three-body repulsive forces included in the CEG07b and MPa models will be discussed.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

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