AdS Black Disk Model for Small-x Deep Inelastic Scattering

Journal Article · Fri Aug 13 00:00:00 EDT 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.072003· OSTI ID:21470952

Cornalba, Lorenzo; Costa, Miguel S ^[1]; Penedones, Joao ^[2]

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1. Centro de Fisica do Porto e Departamento de Fisica e Astronomia da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal)
2. Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106-4030 (United States)

Using the approximate conformal invariance of QCD at high energies we consider a simple anti-de Sitter black disk model to describe saturation in deep inelastic scattering. Deep inside saturation the structure functions have the same power law scaling, F{sub T}{approx}F{sub L}{approx}x{sup -{omega}}, where {omega} is related to the expansion rate of the black disk with energy. Furthermore, the ratio F{sub L}/F{sub T} is given by the universal value (1+{omega}/3+{omega}), independently of the target. For {gamma}*-{gamma}* scattering at high energies we obtain explicit expressions and ratios for the total cross sections of transverse and longitudinal photons in terms of the single parameter {omega}.

• OSTI ID: 21470952
• Journal Information: Physical Review Letters, Vol. 105, Issue 7; Other Information: DOI: 10.1103/PhysRevLett.105.072003; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTI DE SITTER GROUP
ANTI DE SITTER SPACE
APPROXIMATIONS
BLACK HOLES
CONFORMAL INVARIANCE
DEEP INELASTIC SCATTERING
PARTICLE KINEMATICS
PHOTONS
QUANTUM CHROMODYNAMICS
STRUCTURE FUNCTIONS
TOTAL CROSS SECTIONS
BOSONS
CALCULATION METHODS
CROSS SECTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
FUNCTIONS
INELASTIC SCATTERING
INTERACTIONS
INVARIANCE PRINCIPLES
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL SPACE
PARTICLE INTERACTIONS
QUANTUM FIELD THEORY
SCATTERING
SPACE
SYMMETRY GROUPS