Measurement of the (p, α) reactions on 9Be and 11B at 45 MeV

Quantum Fluctuation Effects on Hyperfragment Formation from Ξ− Absorption at Rest on 12C

“…Basically Cascade describes low-energy statistical decay of equilibrated excited nuclei and the angular distribution of the ejectiles is isotropic, or at least forward-backward symmetric. However, at these incident energies the fragment angular distribution shows strong forwardbackward anisotropy, as shown in the 9 Be/ 11 B + p experimental data, 39) caused by direct-like fragment production.…”

“…On the other hand, in AMD-QL with a sufficiently large fluctuation strength g 0 , various fragmentations occur dynamically and the mass spectrum in the dynamical stage is closer to the final post-Cascade results as g 0 is increased. Considering the lifetime of the compound nucleus 13 N * and the predominance of preequilibrium fragmentation (which is evident from the forward-peaked angular distribution of the fragments, as is apparent in the data for the 9 Be/ 11 B + p reactions at 45 MeV, 39) for example), it appears that this new framework is superior to AMD, since the incorporation of the quantum fluctuation of the energy leads to a significantly improved description of particle evaporation and fragmentation in dynamical process. AMD-QL can describe the fragmentation of the moderately excited nuclei dynamically.…”