Hadron Formation Time and Dilepton Mass Spectra in Heavy Ion Collisions
Nuclear Theory
2009-10-30 v1
Abstract
We point out that formation time of pions produced in heavy ion collisions modifies the mass spectrum of dileptons produced via pipi -> ee annihilation. Increasing formation time enhances the production of dileptons with lower masses. The effect offers an explanation of a part of the enhanced production of dileptons below the rho-meson mass as observed by the CERES and HELIOS Collaborations at the CERN SPS.
Keywords
Cite
@article{arxiv.nucl-th/9705051,
title = {Hadron Formation Time and Dilepton Mass Spectra in Heavy Ion Collisions},
author = {Peter Filip and Jan Pisut},
journal= {arXiv preprint arXiv:nucl-th/9705051},
year = {2009}
}
Comments
10 pages, Revtex, 2 figures