Abstract
Heavy residues created in the reaction Ar + Ag at 35 MeV/u have been detected at various forward angles. Their velocity spectra (quite different from the corresponding spectra measured at 27 MeV/u) show that these events result both from central and peripheral reactions and that the fusion component has dramatically decreased. Coincident light charged particles spectra have been obtained in a large solid angle forward hodoscope. The analysis of these spectra allows to differentiate peripheral and central collisions. The proton spectra are analysed in terms of emitting sources. There is no need for a participant zone in peripheral reactions. Instead protons are emitted either from the target like or from the projectile like fragments. However projectile sequential emission is not sufficient to explain all the high energy protons.
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One of us (F.H.) is particularly indebted to the “Laboratoire de Physique Corpusculaire de Caen” and the “Fonds National de la Recherche Scientifique” for financial support. We wish to thank Joe Natowitz for careful reading of the manuscript.
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Bizard, G., Brou, R., Doubre, H. et al. A Semi-exclusive study of heavy-residue production in the40Ar + Ag reaction at 35 MeV/u incident energy. Z. Physik A - Atomic Nuclei 323, 459–464 (1986). https://doi.org/10.1007/BF01313526
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DOI: https://doi.org/10.1007/BF01313526