Space and Time pattern of mid-velocity IMF emission in peripheral heavy-ion collisions at Fermi energies

Abstract

The emission pattern in the V_perp - V_par plane of Intermediate Mass Fragments with Z=3-7 (IMF) has been studied in the collision 116Sn + 93Nb at 29.5 AMeV as a function of the Total Kinetic Energy Loss of the reaction. This pattern shows that for peripheral reactions most of IMF's are emitted at mid-velocity. Coulomb trajectory calculations demonstrate that these IMF's are produced in the early stages of the reaction and shed light on geometrical details of these emissions, suggesting that the IMF's originate both from the neck and the surface of the interacting nuclei.

4 pages, 3 figures, RevTex 3.1, submitted to Phys. Rev. Letters

References in corpus (1)

• Energy and angular momentum sharing in dissipative collisions

Cited by in corpus (25)

• Systematics of Stopping and Flow in Au+Au Collisions
• Neck fragmentation reaction mechanism
• Correlations between emission timescale of fragments and isospin dynamics in ${}^{124}$Sn+${}^{64}$Ni and ${}^{112}$Sn+${}^{58}$Ni reactions at 35 AMeV
• Experimental effects on dynamics and thermodynamics in nuclear reactions on the symmetry energy as seen by the CHIMERA 4$\pi$ detector
• Isospin transport in 84Kr + 112,124Sn collisions at Fermi energies
• Fragmentation in Peripheral Heavy-Ion Collisions: from Neck Emission to Spectator Decays
• Fragment Production in Non-central Collisions of Intermediate Energy Heavy Ions
• Isospin diffusion measurement from the direct detection of a Quasi-Projectile remnant
• Transverse Velocity Scaling in Au+Au Fragmentation
• Particle and light fragment emission in peripheral heavy ion collisions at Fermi energies
• Comparison of mid-velocity fragment formation with projectile-like decay
• Dynamical fission of the quasiprojectile and isospin equilibration for the system 80Kr+ 48 Ca at 35 MeV/nucleon
• Timescale for equilibration of N/Z gradients in dinuclear systems
• Examination of cluster production in excited light systems at Fermi energies from new experimental data and comparison with transport model calculations
• Comparison of AMD calculations with experimental data for peripheral collisions of 93Nb+93Nb,116Sn at 38 MeV/nucleon
• Short timescale behavior of colliding heavy nuclei at intermediate energies
• Distinctive features of Coulomb-related emissions in peripheral heavy ion collisions at Fermi energies
• Interplay of initial deformation and Coulomb proximity on nuclear decay
• Fragment Isospin as a Probe of Heavy-Ion Collisions
• Experimental study of the isospin transport with 40,48 Ca+ 40,48 Ca reactions at 35 MeV/nucleon
• Symmetry energy dependence of long timescale isospin transport
• Energetics of midvelocity emissions in peripheral heavy ion collisions at Fermi energies
• Isospin compositions of correlated sources in the Fermi energy domain
• Size and asymmetry of the reaction entrance channel: influence on the probability of neck production
• Revisit to the yield ratio of triton and ${}^3$He as an indicator of neutron-rich neck emission