1. Proton-proton correlations inAr40+197Au reactions and the role of the two-particle phase space
- Author
-
Giuseppina Raciti, C.K. Gelbke, H. Sann, R. Lucas, S. Leray, W. Trautmann, J. Pochodzalla, C.H. Pinkenburg, E. Berdermann, B. Berthier, J. Hubele, U. Lynen, C. Ngô, C. Cerruti, U. Milkau, Gerd Joachim Kunde, and P. Kreutz
- Subjects
Physics ,Nuclear reaction ,Proton ,Computer Science::Information Retrieval ,Nuclear Theory ,General Physics and Astronomy ,Space (mathematics) ,Spectral line ,Nuclear physics ,Correlation function (statistical mechanics) ,Phase space ,Proton spectra ,Particle ,Atomic physics ,Nuclear Experiment - Abstract
Proton-proton correlations at small relative momenta were measured for [sup 40]Ar+[sup 197]Au reactions at [ital E]/[ital A]=200 MeV. Comparing the correlation functions to predictions based on single-particle phase space distributions from microscopic Boltzmann-Uehling-Uhlenbeck and quantum-molecular-dynamics (QMD) simulations, no satisfactory agreement could be established. Calculations utilizing two-particle emission probabilities predicted by the QMD model differ significantly from the single-particle calculations and are much closer to the experimental observations at [ital E]/[ital A]=200 MeV, potentially signaling the importance of the two-particle density for the proton-proton correlation function.
- Published
- 1993