Oct 02, 2001
Hard Scattering in Gauge/Gravity Duality
Dr. Joe Polchinski, ITP
We consider high-energy fixed-angle scattering of glueballs in confining gauge
theories that have supergravity duals. Although the effective description is in
terms of the scattering of strings, we find that the amplitudes are hard (power
law). This is a consequence of the warped geometry of the dual theory, which has
the effect that in an inertial frame the string process is never in the soft
regime. At small angle we find hard and Regge behaviors in different kinematic
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