The BFKL and GLDAP regimes for the perturbative QCD pomeron

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Journal of Experimental and Theoretical Physics

OSTI ID:28459

Nikolaev, N N; Zakharov, B G ^[1]; Zoller, V R ^[1]

---

1. Institut fuer Kernphysik (Theorie), Juelich (Germany)

The S-matrix of diffractive scattering is diagonalized in terms of the color dipole-dipole cross section. Recently, the authors have shown that the dipole cross section satisfies the generalized Balitskii-Fadin-Kuraev-Lipatov (BFKL) equation. In this paper they discuss the spectrum and solutions of their generalized BFKL equation with allowance for the finite gluon correlation radius R{sub c}. The latter is introduced in a gauge-invariant manner. They present estimates of the intercept of the pomeron and find the asymptotic form of the dipole cross section. They consider the difference between the BFKL and Gribov-Lipatov-Dokshitzer-Altarelli-Parisi (GLDAP) evolutions and conclude that the GLDAP evolution remains a viable description of deep inelastic scattering well beyond the kinematical range of the HERA experiments. They suggest methods of measuring the pomeron intercept in the HERA experiments. 18 refs., 6 figs.

• OSTI ID: 28459
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 6 Vol. 78; ISSN 1063-7761; ISSN JXTPAS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DEEP INELASTIC SCATTERING
DIFFRACTION MODELS
PERTURBATION THEORY
POMERANCHUK PARTICLES
QUANTUM CHROMODYNAMICS
S MATRIX