Dynamic Time Scales in Colored Glass Nuclear Matter
Abstract
In Ultra high energy collisions, the concept of a glass law is invoked in the framework of 'low tension' QCD strings. It is shown that the excitation of QCD strings at low energy has a negative temperature and at high energy has a positive temperature always higher than the Hagedorn temperature, T_H. Very high energy strings T->T_H + 0+ move very slowly as a viscous melted glass with very high viscosity. However, in a very short collision time, it is difficult to transfer the initial collision kinetic energy into the internal energy of a few strings. The low energy strings at high T>>T_H have a low viscosity giving rise to an almost perfect fluid. The role of strings in a nucleus is closely analogous to the role of polymer chains in some viscous glass beads.
Cite
@article{arxiv.nucl-th/0611063,
title = {Dynamic Time Scales in Colored Glass Nuclear Matter},
author = {V. Parihar and A. Widom and Y. N. Srivastava},
journal= {arXiv preprint arXiv:nucl-th/0611063},
year = {2007}
}
Comments
Based on the talk presented (By Vivek Parihar) at the 44th International School of Subnuclear Physics ISSP-2006, Erice, Italy. Interpretation of an ideal fluid in high energy collisions is discussed. To be published in the Proc. Of ISSP, World Scientific