Deep Inelastic Scattering and Gauge/String Duality

By J. Polchinski, M. Strassler. 2002

439 citations recorded by the source corpus.

We study deep inelastic scattering in gauge theories which have dual string descriptions. As a function of gN we find a transition. For small gN, the dominant operators in the OPE are the usual ones, of approximate twist two, corresponding to scattering from weakly interacting partons. For large gN, double-trace operators dominate, corresponding to scattering from entire hadrons (either the original `valence' hadron or part of a hadron cloud.) At large gN we calculate the structure functions. As a function of Bjorken x there are three regimes: x of order one, where the scattering produces only supergravity states; x small, where excited strings are produced; and, x exponentially small, where the excited strings are comparable in size to the AdS space. The last regime requires in principle a full string calculation in curved spacetime, but the effect of string growth can be simply obtained from the world-sheet renormalization group.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/01c37d6bbc9ac92b47ff0fd0cfe6ba533a311cd5

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In Nuclear and High Energy Physics

Citations in the corpus

Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality (2012, background): “(ii) Bottom up approach: In this approach, one looks at the hadron phenomenology of QCD first and then attempts to build its 5D-gravity equivalent model in AdS5 space-time by introducing appropriate fields and modifying the geometry of the extra dimension to reproduce the phenomenology [111, 112, 11”
Deep inelastic scattering at strong coupling from gauge/string duality: the saturation line (2007, methodology): “[15, 16], turns out to be quite subtle, because of several issues: First, the formulation of the unitarity constraint is rather non–trivial in the context of DIS, where the scattering is initiated by an off–shell, electromagnetic, current (actually, an R-current in N = 4 SYM).”
A general class of holographic superconductors (2009, background): “Perhaps this feature is not so surprising, since for n ≥ 3 we can understand the “vertex” Ψ(∂p − A)(2) along the lines of [30] as leading to inelastic scattering.”
Deep inelastic scattering in conformal QCD (2009, methodology): “Other ways of simulating confinement at strong coupling in DIS include the hard and soft wall models [27–30].”
From Gauge-string duality to strong interactions: A Pedestrian's guide (2009, background): “In (31) it was argued that the corresponding field theory operators are double trace operators, that is they are bilinear in hadron fields, and hence create and annihilate a whole hadron, not just a single constituent.”
STUDIES OF NUCLEON RESONANCE STRUCTURE IN EXCLUSIVE MESON ELECTROPRODUCTION (2012, methodology): “3859 [hep-ph] [320] Joseph Polchinski and Matthew J.”
Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions (2007, background): “Assuming minimal coupling the form factor has the form [23, 38]”