6533b85efe1ef96bd12c08d7

RESEARCH PRODUCT

Long range rapidity correlations and the ridge in A+A collisions

François GelisRaju VenugopalanTuomas LappiTuomas Lappi

subject

Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsLogarithmFlux tubeHigh Energy Physics::PhenomenologyBremsstrahlungFOS: Physical sciencesPartonMany bodyNuclear physicsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)RapidityRadial flowNuclear Experiment

description

We discuss results for n-gluon correlations that form the basis of the Glasma flux tube picture of early times in heavy ion collisions. Our formalism is valid to all orders in perturbation theory at leading logarithmic accuracy in x and includes both QCD bremsstrahlung and the many body screening and recombination effects that are important at large parton densities. Long range rapidity correlations, as seen in the near-side ridge in heavy ion collisions, are a chronometer of these early time strong color field dynamics. They also contain information on how radial flow develops in heavy ion collisions.

10.1016/j.nuclphysa.2009.10.053http://arxiv.org/abs/0907.4381