Photon Interferometry ofCollisions at the BNL Relativistic Heavy-Ion Collider
- 13 October 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 93 (16) , 162301
- https://doi.org/10.1103/physrevlett.93.162301
Abstract
We calculate the two-body correlation function of direct photons produced in central collisions at the Relativistic Heavy-Ion Collider. Our calculation includes contributions from the early preequilibrium phase in which photons are produced via hard parton scatterings as well as radiation of photons from a thermalized quark-gluon plasma and the subsequent expanding hadron gas. We find that high energy photon interferometry provides a faithful probe of the details of the space-time evolution and of the early reaction stages of the system.
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