학술논문
Coincidence measurement of residues and light particles in the reaction 56Fe+p at 1 GeV per nucleon with SPALADIN
Document Type
Working Paper
Author
Gentil, E. Le; Aumann, T.; Bacri, C. O.; Benlliure, J.; Bianchin, S.; Böhmer, M.; Boudard, A.; Brzychczyk, J.; Casarejos, E.; Combet, M.; Donadille, L.; Ducret, J. E.; Fernandez-Ordoñez, M.; Gernhäuser, R.; Johansson, H.; Kezzar, K.; Kurtukian-Nieto, T.; Lafriakh, A.; Lavaud, F.; Fèvre, A. Le; Leray, S.; Lühning, J.; Lukasik, J.; Lynen, U.; Müller, W. F.; Pawlowski, P.; Pietri, S.; Rejmund, F.; Schwarz, C.; Sfienti, C.; Simon, H.; Trautmann, W.; Volant, C.; Yordanov, O.
Source
Phys.Rev.Lett.100:022701,2008
Subject
Language
Abstract
The spallation of $^{56}$Fe in collisions with hydrogen at 1 A GeV has been studied in inverse kinematics with the large-aperture setup SPALADIN at GSI. Coincidences of residues with low-center-of-mass kinetic energy light particles and fragments have been measured allowing the decomposition of the total reaction cross-section into the different possible de-excitation channels. Detailed information on the evolution of these de-excitation channels with excitation energy has also been obtained. The comparison of the data with predictions of several de-excitation models coupled to the INCL4 intra-nuclear cascade model shows that only GEMINI can reasonably account for the bulk of collected results, indicating that in a light system with no compression and little angular momentum, multifragmentation might not be necessary to explain the data.
Comment: 4 pages, 5 figures, revised version accepted in Phys. Rev. Lett
Comment: 4 pages, 5 figures, revised version accepted in Phys. Rev. Lett