Abstract
We compute the radiation of lepton pairs by the quarks during a central collision between gold nuclei at energy of the Brookhaven Relativistic Heavy Ion Collider (s =200A GeV) within the parton cascade model. The distribution of radiated pairs evolves smoothly from the initial Drell-Yan type reactions all the way towards equilibrium radiation. Contributions from reactions involving secondary partons dominate the Drell-Yan yield by at least a factor of 5 even at an invariant mass of 8 GeV. Therefore, experiments can test the evolution of partons towards thermal equilibrium at these energies.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1920-1923 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 70 |
| Issue number | 13 |
| DOIs | |
| State | Published - 1993 |