Photon interferometry of Au+Au collisions at the BNL Relativistic Heavy-Ion Collider.
We calculate the two-body correlation function of direct photons produced in central Au+Au 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.
Bass
Steffen A
SA
Department of Physics, Duke University, Durham, North Carolina 27708-0305, USA.
Müller
Berndt
B
Srivastava
Dinesh K
DK