Strong enhancement of extremely energetic proton production in central heavy ion collisions at intermediate energy - art. no. 072701

Authors
Sapienza, P Coniglione, R Colonna, M Migneco, E Agodi, C Alba, R Bellia, G Del Zoppo, A Finocchiaro, P Greco, V Loukachine, K Maiolino, C Piattelli, P Santonocito, D Ventura, PG Blumenfeld, Y Bruno, M Colonna, N D'Agostino, M Fabbietti, L Fiandri, ML Gramegna, F Iori, I Margagliotti, GV Mastinu, PF Milazzo, PM Moroni, A Rui, R Scarpaci, JA Vannini, G
Citation
P. Sapienza et al., Strong enhancement of extremely energetic proton production in central heavy ion collisions at intermediate energy - art. no. 072701, PHYS REV L, 8707(7), 2001, pp. 2701
Citations number
24
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
8707
Issue
7
Year of publication
2001
Database
ISI
SICI code
0031-9007(20010813)8707:7<2701:SEOEEP>2.0.ZU;2-P
Abstract
The energetic proton emission has been investigated as a function of the re action centrality for th,! system Ni-58 + Ni-58 at 30A MeV. Extremely energ etic protons (E-p(NN) greater than or equal to 130 MeV) were measured and t heir multiplicity is found to increase almost quadratically with the number of participant nucleons, thus indicating the onset of a mechanism beyond o ne- and two-body dynamics.