English

Entropy and Multifractality in Relativistic Ion-Ion Collisions

High Energy Physics - Phenomenology 2018-04-16 v1 Nuclear Theory

Abstract

Entropy production in multiparticle systems is investigated by analysing the experimental data on ion-ion collision at AGS and SPS energies and comparing the findings with those reported earlier for hadron-hadron, hadron-nucleus and nucleus-nucleus collisions. It is observed that the entropy produced in limited and full phase space, when normalised to maximum rapidity exhibits a kind of scaling which is nicely supported by Monte Carlo model \hij. Using the R\'{e}nyi's order-q information entropy, multifractal characteristics of particle production are examined in terms of Generalized dimensions, Dq_{q}. Nearly the same values of multifractal specific heat, cc observed in hadronic and ion-ion collisions over a wide range of incident energies suggest that the quantity cc may be used as a universal characteristic of multiparticle production in hadron-hadron, hadron-nucleus and nucleus-nucleus collisions.

Keywords

Cite

@article{arxiv.1710.01010,
  title  = {Entropy and Multifractality in Relativistic Ion-Ion Collisions},
  author = {Shaista Khan and Shakeel Ahmad},
  journal= {arXiv preprint arXiv:1710.01010},
  year   = {2018}
}

Comments

17 pages, 5 figures, 2 tables