Holographic Pomeron: Saturation and DIS

Abstract

We briefly review the approach to dipole-dipole scattering in holographic QCD developed in ARXIV:1202.0831. The Pomeron is modeled by exchanging closed strings between the dipoles and yields Regge behavior for the elastic amplitude. We calculate curvature corrections to this amplitude in both a conformal and confining background, identifying the holographic direction with the virtuality of the dipoles. The it wee-dipole density is related to the string tachyon diffusion in both virtuality and the transverse directions. We give an explicit derivation of the dipole saturation momentum both in the conformal and confining metric. Our holographic result for the dipole-dipole cross section and the it wee-dipole density in the conformal limit are shown to be identical in form to the BFKL pomeron result when the non-critical string transverse dimension is $D_{\perp }=3$. The total dipole-dipole cross section is compared to DIS data from HERA.

References in corpus (6)

• The Pomeron and Gauge/String Duality
• Deep inelastic scattering off a N=4 SYM plasma at strong coupling
• String-Gauge Dual Description of Deep Inelastic Scattering at Small-$x$
• On the effective theory of long open strings
• DIS on a Large Nucleus in AdS/CFT
• DIS in AdS

Cited by in corpus (25)

• Heavy Ion Collisions: Achievements and Challenges
• Diffractive photoproduction of $J/\psi$ and ${\rm Y}$ using holographic QCD: gravitational form factors and GPD of gluons in the proton
• Exclusive central diffractive production of scalar and pseudoscalar mesons; tensorial vs. vectorial pomeron
• New Regimes of Stringy (Holographic) Pomeron and High Multiplicity pp and pA Collisions
• Self-interacting QCD strings and string balls
• Extraction of gluon distributions from structure functions at small x in holographic QCD
• Entanglement in Reggeized Scattering using AdS/CFT
• Rapidity evolution of the entanglement entropy in quarkonium: parton and string duality
• The origin of thermal component in the transverse momentum spectra in high energy hadronic processes
• Regge theory in a Holographic dual of QCD in the Veneziano Limit
• Electroproduction of heavy vector mesons using holographic QCD: from near threshold to high energy regimes
• Regimes of the Pomeron and its Intrinsic Entropy
• Elastic pion-proton and pion-pion scattering at high energies in holographic QCD
• Entanglement entropy and flow in two dimensional QCD: parton and string duality
• Diffractive Vector Photoproduction using Holographic QCD
• Stretched String with Self-Interaction at High Resolution: Spatial Sizes and Saturation
• Streched String with Self-Interaction at the Hagedorn Point: Spatial Sizes and Black Hole
• 1/N corrections to $F_1$ and $F_2$ structure functions of vector mesons from holography
• Neutrino-nucleon DIS from Holographic QCD: PDFs of sea and valence quarks, form factors, and structure functions of the proton
• Higher order string effects and the properties of the Pomeron
• A Stringy (Holographic) Pomeron with Extrinsic Curvature
• Recent Theoretical Developments in Strongly Coupled QCD
• Interplay of Reggeon and photon in pA collisions
• Diffractive and deeply virtual Compton scattering in holographic QCD
• Deeply Virtual Compton Scattering in Improved Holographic QCD