Multifragmentation in Heavy-Ion Processes

Moretto, L. G.; Wozniak, G. J.

doi:10.1146/annurev.ns.43.120193.002115

Cited by 217 publications

(124 citation statements)

References 68 publications

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“…Collision induced fragmentation of small fluid drops (atomic nuclei [9], atomic aggregates [10,11], liquid droplets [12]) is a field of experimental research particularly active because it offers the best possibilities of complete identification of the fragmentation products. We present in this paper an analysis of the fragmentation of atomic nuclei in high energy collisions.…”

Section: Introductionmentioning

confidence: 99%

Analyzing fragmentation of simple fluids with percolation theory

et al. 2000

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Section: Introductionmentioning

confidence: 99%

Analyzing fragmentation of simple fluids with percolation theory

et al. 2000

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“…The pursuit of this challenging problem (see, e.g. [15][16][17] and references given therein) will profit from the study of equilibrated systems that may be characterized by a few global variables such as mass, excitation energy, and temperature.…”

Section: Introductionmentioning

confidence: 99%

Universality of spectator fragmentation at relativistic bombarding energies

et al. 1996

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Multi-fragment decays of 129 Xe, 197 Au, and 238 U projectiles in collisions with Be, C, Al, Cu, In, Au, and U targets at energies between E/A = 400 MeV and 1000 MeV have been studied with the ALADIN forward-spectrometer at SIS. By adding an array of 84 SiCsI(Tl) telescopes the solid-angle coverage of the setup was extended to θ lab = 16 • . This permitted the complete detection of fragments from the projectile-spectator source.The dominant feature of the systematic set of data is the Z bound universality that is obeyed by the fragment multiplicities and correlations. These observables are invariant with respect to the entrance channel if plotted as a function of Z bound , where Z bound is the sum of the atomic numbers Z i of all projectile fragments with Z i ≥ 2. No significant dependence on the bombarding energy nor on the target mass is observed. The dependence of the fragment multiplicity on the projectile mass follows a linear scaling law.The reasons for and the limits of the observed universality of spectator fragmentation are explored within the realm of the available data and with model studies. It is found that the universal properties should persist up to much higher bombarding energies than explored in this work and that they are consistent with universal features exhibited by the intranuclear cascade and statistical multifragmentation models.

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“…At low excitation energy, nuclei usually disintegrate by emitting neutrons and light charged particles (Z=1 and Z=2). When increasing excitation energy, an emission of intermediate mass fragments (IMF namely Z≥3) has been experimentally observed [2]. However up to now the fragment emission mechanism remains poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Fragment Distributions and Reaction Mechanisms for the 36Ar + 58Ni System From 32 to 95 A.Mev

Nalpas

Charvet

Dayras

et al. 1996

Advances in Nuclear Dynamics

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Within the framework of flow and multifragmentation study, the 36 Ar+ 58 Ni experiment has been performed at seven incident energies from 32 to 95 A · MeV with the INDRA detector at GANIL. After a brief description of the experimental set-up, the main trends as well as the evolution of fragment distributions will be presented. Some results about reaction mechanisms for particular classes of events will conclude this report.

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Multifragmentation in Heavy-Ion Processes

Cited by 217 publications

References 68 publications

Analyzing fragmentation of simple fluids with percolation theory

Analyzing fragmentation of simple fluids with percolation theory

Universality of spectator fragmentation at relativistic bombarding energies

Evolution of Fragment Distributions and Reaction Mechanisms for the 36Ar + 58Ni System From 32 to 95 A.Mev

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