Kinematic method for separating dominant types of cluster configurations in a complex nucleus

Abstract

A direct method for detecting intranuclear agglomerations of nuclear matter (clusters) is developed for the first time. The method is based on the functional coincidence of kinematics for clusters in the free state and inside the nuclear volume. The reliability of the method is additionally confirmed by comparing differential cross sections for alpha particles with energies of around 29 MeV and scattered elastically on free and intranuclear multi clusters. Using another type of experiment (correlative), intranuclear alpha clusters in channel ⁴He(α,α)⁴He are revealed by registering the coincidence of the scattered particles and the identical right–left recoil nuclei from the beam axis. The experiments are performed on the ion beams of the isochronous U-150M cyclotron at the Institute of Nuclear Physics in Almaty, Kazakhstan.