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Phys Rev Lett. 2002 Jan 21;88(3):031601. Epub 2002 Jan 2.

Hard scattering and gauge/string duality.

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  • 1Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030, USA.


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 regions.

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