Softer Hard Scattering and Noncommutative Gauge-String Duality

Abstract

We study exclusive scattering of `hadrons' at high energy and fixed angle in (nonconformal) noncommutative gauge theories. Via gauge-string duality, we show that the noncommutativity renders the scattering soft, leading to exponential suppression. The result fits with the picture that, in noncommutative gauge theory, fundamental partons consist of extremely soft constituents and `hadrons' are made out of open Wilson lines.

Comments: 9 pages, Latex, no figure, v2. text shortened, v3. parton interpretation rectified+one ref. added