Speaker
Description
While most initial-state calculations for heavy-ion collisions are performed in the asymptotic high-energy limit, real-world kinematics involve large but finite energies. Sub-eikonal corrections may therefore be important for calculating the initial conditions at RHIC or the LHC, especially those corrections which are enhanced by the size of the medium. Therefore, we study the first sub-eikonal corrections to the classical Weizsacker-Williams gluon field in the McLerran-Venugopalan model of a heavy nucleus. Starting with the first sub-eikonal corrections to a single color source (quark), we see that the nature of the field changes drastically: new kinematic dependences are introduced, and the gluon field acquires new components which are not seen in the eikonal limit. In this talk, we will present preliminary results on the leading modifications to the gluon field of a heavy nucleus at large but finite energies.
