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

Autor: 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
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Physics Letters B, Vol 751, Iss C, Pp 1-6 (2015)
Druh dokumentu: article
ISSN: 0370-2693
1873-2445
DOI: 10.1016/j.physletb.2015.10.008
Popis: 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.
Databáze: Directory of Open Access Journals
Externí odkaz: