Phys. Rev. C 42, 1760 - 1763 (1990)Determination of the impact parameter in relativistic nucleus-nucleus collisions |
C. Cavata, M. Demoulins, and J. Gosset
Département de Physique Nucléaire, Centre d’Etudes Nucléaires de Saclay, F 91191 Gif sur Yvette CEDEX, France
M.-C. Lemaire
Département de Physique Nucléaire and Laboratoire National Saturne, Centre d’Etudes Nucléaires de Saclay, F 91191 Gif sur Yvette CEDEX, France
D. L’Hôte, J. Poitou, and O. Valette
Département de Physique Nucléaire, Centre d’Etudes Nucléaires de Saclay, F 91191 Gif sur Yvette CEDEX, France
Received 2 March 1990
A simple method is proposed for determining the impact parameter in relativistic nucleus-nucleus collisions. Assuming a monotonous correlation between multiplicity and impact parameter, the multiplicity dependence of the measured cross section is interpreted as an impact-parameter dependence of the geometrical reaction cross section. The reliability of this method is checked to be excellent within the framework of the intranuclear cascade model. Its application to data analysis at lower and higher energies is suggested.
©1990 The American Physical Society
URL: http://link.aps.org/abstract/PRC/v42/p1760
DOI: 10.1103/PhysRevC.42.1760
PACS: 25.70.Np
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