Glagolev V.V., Olimov A.K., Sharipova S.A. et al. Formation of multibaryon clusters in collisions of high energy hadrons and nuclei with carbon and neon nuclei.

Formation of multibaryon clusters in 4He+12Cand 12C+12C collisions at 4.2A GeV/c, and in π− + 12Cand p + 20Ne collisions at 40 and 300GeV/c, respectively, is studied using universal binary B algorithm of separation of clusters in 4-velocity space. The masses and widths of multibaryon clusters increase linearly with an increase in the number of protons (np) in a cluster. The dependences of width of clusters on np in π− + 12Cand p + 20Ne collisions differ noticeably from the corresponding dependences in 4He + 12Cand 12C+ 12C collisions. In nucleus–nucleus collisions, the widths of clusters are significantly larger and grow more rapidly, as the number of protons in a cluster increases, as compared to hadron–nucleus collisions. This result is in line with the fact that, in case of identical target nuclei, the degree of “destruction” of a target nucleus is greater in case of nucleus–nucleus collisions as compared to hadron–nucleus collisions. The lifetimes of multibaryon clusters are of the same order of magnitude with those of strongly decaying baryon resonances. The lifetime of clusters decreases with an increase in np.