Angular distribution measurement for 12C fragmentation via 12C + 12C scattering at 100 MeV/u**Supported by National Natural Science Foundation of China (11705123, 11475013, 11035007, 11175011), China Postdoctoral Science Foundation (2016M591911) and Natural Science Foundation of Jiangsu Province (BK20160306)

Abstract

The angular distributions and energy spectra of 11B, 10B, and 9Be fragments of 12C in the angular range from 1.0° to 7.5° at 100 MeV/u were obtained via 12C + 12C scattering. Detailed comparisons are presented between the experimental data and the modified antisymmetrized molecular dynamics (AMD-FM), binary intranuclear cascade model (BIC) and Liège intranuclear cascade model (INCL++). The experimental angular distributions and energy spectra are well reproduced by the AMD-FM calculations but fail to be reproduced by the physical models installed in the Geant4 program, including the BIC and INCL++ models.