Correlations between fragment mass and excitation energy in damped reactions

• Published in: Physical review. C, Nuclear physics Vol. 40; no. 4; pp. 1577 - R1580
• Main Authors: Tke, J, Schröder, WU, Huizenga, JR
• Format: Journal Article
• Language: English
• Published: United States 01-10-1989
• Subjects: 651820 - Nuclear Properties & Reactions, A=150-189, Experimental; 653003 - Nuclear Theory- Nuclear Reactions & Scattering; 657002 - Theoretical & Mathematical Physics- Classical & Quantum Mechanics; CHARGED-PARTICLE REACTIONS; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COINCIDENCE SPECTROMETRY; ENERGY; ENERGY RANGE; HEAVY ION REACTIONS; HOLMIUM 165 TARGET; IRON 56 REACTIONS; KINETIC ENERGY; MASS SPECTRA; MATHEMATICAL MODELS; MEV RANGE; MEV RANGE 100-1000; MONTE CARLO METHOD; NUCLEAR FRAGMENTATION; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; SPECTRA; STATISTICAL MODELS; TARGETS
• ISSN: 0556-2813; 1089-490X
• DOI: 10.1103/PhysRevC.40.R1577

A recent claim of significant correlations between the fragment mass and excitation energy at a fixed total kinetic energy loss in a damped reaction is reexamined. It is shown that correlations of similar character and strength to those reported, result from incorrect assumptions made in the original analysis of kinematical coincidence data from the {sup 165}Ho+{sup 56}Fe reaction at 504 MeV. Based on Monte Carlo simulations of the experiment, it is concluded, that within the uncertainties resulting from the experimental method, the data from the above reaction are consistent with a damped reaction mechanism, in which, for a fixed kinetic energy loss, the fragment excitation energy is uncorrelated with its mass.