Published April 1994 | Version v1
Journal article Metadata-only

Higher twist and higher order contributions to the pion electromagnetic from factor

Creators

  • 1. Washington Univ., Seattle, WA (United States). Dept. of Physics
  • 2. Insdian Inst. of Science, Bangalore (India). Centre for Theoretical Studies

Description

The O{mπ4/[(mu+md)2Q2]} and O(αS2) corrections to the leading term of the perturbative QCD calculation of the pion electromagnetic form factor are examined numerically. Both sets of terms provide significant corrections for values of Q2 between 1 and 15 GeV2/c2. (orig.)

Additional details

Publishing Information

Journal Title
Zeitschrift fuer Physik. A, Hadrons and Nuclei
Journal Volume
348
Journal Issue
2
Journal Page Range
p. 123-127.
ISSN
0939-7922
CODEN
ZPAHEX

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
25067999
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CORRECTIONS; ELECTROMAGNETIC FORM FACTORS; FEYNMAN DIAGRAM; FORM FACTORS; PERTURBATION THEORY; PIONS; POWER SERIES; QUANTUM CHROMODYNAMICS; SCATTERING AMPLITUDES
Descriptors DEC
AMPLITUDES; BOSONS; DIAGRAMS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INFORMATION; MESONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SERIES EXPANSION