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Phys. Rev. Lett. 88, 031601 (2002) [4 pages]

Hard Scattering and Gauge/String Duality

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Joseph Polchinski1 and Matthew J. Strassler2
1Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030
2Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19146

Received 21 September 2001; published 2 January 2002

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.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.031601
DOI:
10.1103/PhysRevLett.88.031601
PACS:
11.15.Pg, 11.25.Db, 11.25.Pm, 12.38.Bx