Click here to view fulltext PDF

Permanent link:
https://www.ias.ac.in/article/fulltext/pram/066/05/0809-0816

Relativistic heavy-ion collisions; hadron spectra

We analyze the spectra of pions and protons in heavy-ion collisions at relativistic energies from 2 A GeV to 65+65 A GeV by using a jet-implemented hadron-string cascade model. In this energy region, hadron transverse mass spectra first show softening until SPS energies, and re-hardening may emerge at RHIC energies. Since hadronic matter is expected to show only softening at higher energy densities, this re-hardening of spectra can be interpreted as a good signature of the quark-gluon plasma formation

P K Sahu¹ N Otuka^{2 3} M Isse² Y Nara⁴ A Ohnishi²

1. Institute of Physics, Sachivalaya Marg, Bhubaneswar - 751 005, India
2. Division of Physics, Graduate School of Science, Hokkaido University, Sapporo - 060-0810, Japan
3. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai, Ibaraki - 319-11, Japan
4. Institut für Theoretische Physik, Johann Wolfgang Goethe-Universität, Robert-Mayer-Str.10, Frankfurt am Main - 60325, Germany

Published

May 2006