Particle and light fragment emission in peripheral heavy ion collisions at Fermi energies

Abstract

A systematic investigation of the average multiplicities of light charged particles and intermediate mass fragments emitted in peripheral and semiperipheral collisions is presented as a function of the beam energy, violence of the collision and mass of the system. The data have been collected with the "Fiasco" setup in the reactions 93Nb+93Nb at 17, 23, 30, 38AMeV and 116Sn+116Sn at 30, 38AMeV. The midvelocity emission has been separated from the emission of the projectile-like fragment. This last component appears to be compatible with an evaporation from an equilibrated source at normal density, as described by the statistical code Gemini at the appropriate excitation energy. On the contrary, the midvelocity emission presents remarkable differences for what concerns both the dependence of the multiplicities on the energy deposited in the midvelocity region and the isotopic composition of the emitted light charged particles.

arXiv comment18 pages, 17 figures, Revtex 4

References in corpus (8)

• Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV
• Neck fragmentation reaction mechanism
• Statistical evolution of isotope composition of nuclear fragments
• Space and Time pattern of mid-velocity IMF emission in peripheral heavy-ion collisions at Fermi energies
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Cited by in corpus (14)

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• Liquid-Gas phase transition in nuclei
• Experimental effects on dynamics and thermodynamics in nuclear reactions on the symmetry energy as seen by the CHIMERA 4$\pi$ detector
• Isospin diffusion in semi-peripheral ${}^{58}Ni$ + ${}^{197}Au$ collisions at intermediate energies (I): Experimental results
• Isospin transport in 84Kr + 112,124Sn collisions at Fermi energies
• Persistence of odd-even staggering in charged fragment yields from the 112Sn+58Ni collision at 35 MeV/nucleon
• Fragment properties of fragmenting heavy nuclei produced in central and semi-peripheral collisions
• Dynamical fission of the quasiprojectile and isospin equilibration for the system 80Kr+ 48 Ca at 35 MeV/nucleon
• Comparison of AMD calculations with experimental data for peripheral collisions of 93Nb+93Nb,116Sn at 38 MeV/nucleon
• Isospin effects and symmetry energy studies with INDRA
• Distinctive features of Coulomb-related emissions in peripheral heavy ion collisions at Fermi energies
• Isospin Diffusion in ${}^{58}$Ni-Induced Reactions at Intermediate Energies