Flash of photons from the early stage of heavy-ion collisions
| dc.creator | Srivastava, Dinesh K. | |
| dc.creator | Geiger, Klaus | |
| dc.date | 1998-02-11 | |
| dc.date.accessioned | 2026-07-07T11:11:34Z | |
| dc.date.available | 2026-07-07T11:11:34Z | |
| dc.description | The dynamics of partonic cascades may be an important aspect for particle production in relativistic collisions of nuclei at CERN SPS and BNL RHIC energies. Within the Parton-Cascade Model, we estimate the production of single photons from such cascades due to scattering of quarks and gluons q g -> q gamma, quark-antiquark annihilation q qbar -> g gamma, or gamma gamma, and from electromagnetic brems-strahlung of quarks q -> q gamma. We find that the latter QED branching process plays the dominant role for photon production, similarly as the QCD branchings q -> q g and g -> g g play a crucial role for parton multiplication. We conclude therefore that photons accompanying the parton cascade evolution during the early stage of heavy-ion collisions shed light on the formation of a partonic plasma. | |
| dc.description | 4 pages including 3 postscript figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9802034 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9802034 | |
| dc.identifier | Phys.Rev.C58:1734-1737,1998 | |
| dc.identifier | doi:10.1103/PhysRevC.58.1734 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191137 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Flash of photons from the early stage of heavy-ion collisions | |
| dc.type | text |