Percolation Approach to the Liquid Gas Phase Transition

Bauer, Wolfgang

doi:10.1007/978-94-011-4556-5_16

Cited by 1 publication

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References 22 publications

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“…In addition, he suggests studying the behaviour of the size P of this heaviest fragment against the second-order moment, if p < p c ln P (j ) ln S with k = 2; this relation is only valid near the critical transition (ε ≈ 0). Following Bauer [72], λ k,2 must be measured by analysing only events giving the highest values of the moments whereas Campi suggests to measure it by taking into account all the events.…”

Section: Appendix a Relations Of The Percolation Model Useful For The...mentioning

confidence: 99%

Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule

Rentenier¹,

Moretto-Capelle²,

Bordenave-Montesquieu³

et al. 2005

J. Phys. B: At. Mol. Opt. Phys.

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Fragmentation of the C60 molecule is investigated using a multicorrelation technique. We first focus on the transition from asymmetrical dissociation (AD) to multifragmentation (MF). These processes are studied in collisions between H+x(x = 1–3) hydrogenic projectiles and C60 fullerene in the gas phase, in the 2–130 keV collisional energy range. A rather sharp transition from pure AD to predominant MF is observed when plotting the AD/(AD + MF) ratio against the average deposited energy Edep; it occurs in the 80–240 eV Edep range; this ratio is also found to be independent of the projectile species (scaling law). The evolution of the size distribution shape is also discussed and compared with other data available in the literature. A pure power law is never reached in the present experimental conditions. Finally, an event-by-event analysis of the fragmentation data is developed for the first time in the study of the C60 molecule fragmentation and discussed in terms of the predictions of the percolation model near a critical behaviour. Moments of order 2, 3 and 5 are determined for each correlation event. Moments of order 3 and 5 follow a linear behaviour when plotted against the moment of order 2, as predicted, and the exponent τ that is extracted takes a value near 2. The Campi scatter plot is also determined and discussed for total and multiplicity-selected events. Both slopes of the two branches in the Campi plots and τ value are near those that are expected in the percolation of a 2D lattice.

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Section: Appendix a Relations Of The Percolation Model Useful For The...mentioning

confidence: 99%

Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule

Rentenier¹,

Moretto-Capelle²,

Bordenave-Montesquieu³

et al. 2005

J. Phys. B: At. Mol. Opt. Phys.

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Percolation Approach to the Liquid Gas Phase Transition

Cited by 1 publication

References 22 publications

Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule

Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule

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Percolation Approach to the Liquid Gas Phase Transition

Cited by 1 publication

References 22 publications

Analysis of fragment size distributions in collisions of monocharged ions with the C60molecule

Analysis of fragment size distributions in collisions of monocharged ions with the C60molecule

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Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule

Analysis of fragment size distributions in collisions of monocharged ions with the C₆₀molecule