Effect of the intermediate velocity emissions on the quasi-projectile properties for the Ar + Ni system at 95 AMeV

DAPNIA/SPhN, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, France; LPC Caen (IN2P3-CNRS/ISMRA et Université), 14050 Caen Cedex, France; GANIL (DSM-CEA/IN2P3-CNRS), B.P. 5027, 14076 Caen Cedex 5, France; IPN Orsay (IN2P3-CNRS), 91406 Orsay Cedex, France; IPN Lyon (IN2P3-CNRS/Université), 69622 Villeurbanne Cedex, France; Nuclear Institute for Physics and Nuclear Engineering, Bucharest, Romania; Dipartimento di Scienze Fisiche, Univ. di Napoli, 180126 Napoli, Italy; Conservatoire National des Arts et Métiers, 75141 Paris Cedex 03, France
Physics Letters B 10/2000; DOI: 10.1016/S0370-2693(00)01007-8
Source: arXiv

ABSTRACT The quasi-projectile (QP) properties are investigated in the Ar+Ni collisions at 95 AMeV taking into account the intermediate velocity emission. Indeed, in this reaction, between 52 and 95 AMeV bombarding energies, the number of particles emitted in the intermediate velocity region is related to the overlap volume between projectile and target. Mean transverse energies of these particles are found particularly high. In this context, the mass of the QP decreases linearly with the impact parameter from peripheral to central collisions whereas its excitation energy increases up to 8 AMeV. These results are compared to previous analyses assuming a pure binary scenario.


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