Dispersive approach in Sudakov resummation

Journal Article · Mon Feb 26 23:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714391· OSTI ID:21056828

Grunberg, Georges ^[1]

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1. Centre de Physique Theorique, Ecole polytechnique, CNRS, 91128 Palaiseau (France)

The dispersive approach to power corrections is given a precise implementation, valid beyond single gluon exchange, in the framework of Sudakov resummation for deep inelastic scattering and the Drell-Yan process. It is shown that the assumption of infrared finite Sudakov effective couplings implies the universality of the corresponding infrared fixed points. This property is closely tied to the universality of the virtual contributions to space-like and time-like processes, encapsulated in the second logarithmic derivative of the quark form factor.

• OSTI ID: 21056828
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 892; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRECTIONS
DEEP INELASTIC SCATTERING
DRELL MODEL
ELECTROMAGNETIC FORM FACTORS
GLUONS
QUARKS