Published March 2008
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Evidence for the discrete asymptotically-free BFKL Pomeron from HERA data
Creators
- 1. CERN, Geneva (Switzerland). Theory Division, Physics Dept.
- 2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- 3. Southampton Univ. (United Kingdom). School of Physics and Astronomy
Description
We show that the next-to-leading-order renormalization-group-improved asymptotically-free BFKL Pomeron provides a good fit to HERA data on virtual photoproduction at small x and large Q2. The leading discrete Pomeron pole reproduces qualitatively the Q2 dependence of the HERA data for x ∝10-3, and a fit using the three leading discrete singularities reproduces quantitatively the Q2 and x dependence of the HERA data for x<10-2. This fit fixes the phase for all the BFKL wavefunctions at a chosen infrared scale. (orig.)
Availability note (English)
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Additional details
Publishing Information
- Imprint Pagination
- 12 p.
- ISSN
- 0418-9833
- Report number
- DESY--08-028
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 39043126
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DEEP INELASTIC SCATTERING; EIGENFUNCTIONS; EIGENVALUES; GEV RANGE 100-1000; INTEGRAL EQUATIONS; KERNELS; LEPTON-PROTON INTERACTIONS; PERTURBATION THEORY; PHOTOPRODUCTION; POMERANCHUK PARTICLES; POMERANCHUK POLES; PROTONS; RENORMALIZATION; SINGULARITY; STRUCTURE FUNCTIONS; THEORETICAL DATA; WAVE FUNCTIONS
- Descriptors DEC
- BARYONS; BASIC INTERACTIONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; FERMIONS; FUNCTIONS; GEV RANGE; HADRONS; INELASTIC SCATTERING; INFORMATION; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; NUCLEONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; QUASI PARTICLES; SCATTERING
Optional Information
- Secondary number(s)
- CERN-PH-TH--2008-030; SHEP--08-08