Published May 21, 1979 | Version v1
Journal article Metadata-only

Perturbative versus asymptotic freedom corrections in Drell-Yan processes

Creators

  • 1. Wisconsin Univ., Madison (USA). Dept. of Physics
  • 2. European Organization for Nuclear Research, Geneva (Switzerland)

Description

The authors present a comparison between exact lowest order on-shell perturbation theory (PT), leading-log asymptotic freedom (AF), and non-log improved AF in pp-initiated Drell-Yan μ+μ--production. In leading-log approximation PT reproduces the qualitative tau-and Q2-characteristics of AF. In PT and AF qanti q-annihilation is dominated by the very large non-log contribution whereas the non-log qg-term does not invalidate AF. (Auth.)

Additional details

Publishing Information

Journal Title
Phys. Lett., B
Journal Volume
83
Journal Issue
3-4
Series
Phys. Lett., B.
Journal Page Range
371-374
ISSN
0031-9163

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
10489718
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ANNIHILATION; CORRECTIONS; DRELL MODEL; MUONS MINUS; MUONS PLUS; PAIR PRODUCTION; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARK-ANTIQUARK INTERACTIONS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; INTERACTIONS; LEPTONS; MATTER; MUONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY