Hard scattering and gauge/string duality.

By J. Polchinski, M. Strassler. Physical Review Letters, 2001

649 citations recorded by the source corpus.

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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/24250a8f63bea048bdd835f3e691404aff706c6b

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Citations in the corpus

Improved Holographic QCD (2010, background): “Bottom-up models based on AdS slices [13] have given some insights mostly in the meson sector, [7] but necessarily lack many important holographic features of QCD.”
Introduction to holographic superconductor models (2015, methodology): “It is referred as AdS/QCD or holographic QCD, which has been widely studied [222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235].”
D‐branes in Standard Model building, gravity and cosmology (2003, background): “The cutoff implies a non-trivial effective string length for the gauge theory, obtained by red-shifting the AdS string scale at the horizon [351]:”
Deep inelastic scattering at strong coupling from gauge/string duality: the saturation line (2007, background): “(iii) The last comment shows that DIS would be strongly suppressed at large Q2 if there was not for the non–locality hidden in the middle factor, (1/x)1+(α ′/2)∆2 , which describes the imaginary part associated with one string exchange in the curved, AdS5, space.”
D-branes in Yang-Mills theory and emergent gauge symmetry (2004, neutral): “In some cases like [44], knowing were interactions happen helps to resolve issues between ’field theory’ behavior and ’string theory’ behavior in scattering amplitudes.”
Nonperturbative QCD coupling and its β function from light-front holography (2010, methodology): “As first shown by Polchinski and Strassler, [15] the AdS/CFT duality, modified to incorporate a mass scale, provides a derivation of dimensional counting rules [16] for the leading power-law fall-off of hard scattering beyond the perturbative regime.”
Eikonal approximation in AdS/CFT: from shock waves to four-point functions (2006, positive): “It would be important to include this leading correction in the context of AdS physics, following the work of [37, 38].”
Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts (2007, background): “Two variants have been proposed how to model confinement: by a ‘hard wall’ [107] or by a ‘soft wall’ [106] which cut off effectively AdS space in the infrared region.”
Entanglement as a probe of confinement (2007, background): “ to the vanishing of e−2φV int. Thus, we should consider models where there are shrinking cycles and/or φ diverges in the IR. Curiously, one of the most widely used gravitational models of conﬁnement [24], AdS5 with a hard IR wall at U = U0, exhibits neither of these phenomena because both φ and Vin”
Improved holographic Yang–Mills at finite temperature: Comparison with data (2009, background): “Bottom-up models based on AdS slices [13] have given some insights mostly in the meson sector, [7] but necessarily lack many important holographic features of QCD.”