Intensity interferometry of direct photons emitted in Au+Au collisions

Details Intensity interferometry of direct photons emitted in Au+Au collisions Intensity interferometry of direct photons emitted in Au+Au collisions

2004-04-19

arxiv.org/abs/nucl-th/0404050v2

Phys.Rev.Lett. 93 (2004) 162301

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 eps figures - revised version, accepted for publication in PRL

Scientific paper

10.1103/PhysRevLett.93.162301

We calculate the two-body correlation function of direct photons produced in Au+Au collisions at the Relativistic Heavy Ion Collider. Our calculation includes contributions from the early pre-equilibrium phase in which photons are produced via hard parton scatterings as well as radiation of photons from a thermalized Quark-Gluon-Plasma (QGP) and the subsequent expanding hadron gas. We find that high energy photon intensity 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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