Published February 2008 | Version v1
Journal article Metadata-only

Calculation of the two-loop heavy-flavor contribution to Bhabha scattering

Creators

  • 1. Departamento de Fisica Teorica, IFIC, CSIC - Universidad de Valencia, E-46071 Valencia (Spain)
  • 2. Institut fuer Theoretische Physik, Universitaet Zuerich, CH-8057 Zurich (Switzerland)
  • 3. Department of Physics, University Of Alberta, Edmonton, AB, T6G 2J1 (Canada)

Description

We describe in detail the calculation of the two-loop corrections to the QED Bhabha scattering cross section due to the vacuum polarization by heavy fermions. Our approach eliminates one mass scale from the most challenging part of the calculation and allows us to obtain the corrections in a closed analytical form. The result is valid for arbitrary values of the heavy fermion mass and the Mandelstam invariants, as long as s, t, u >> me2

Availability note (English)

Available from http://dx.doi.org/10.1088/1126-6708/2008/02/080

Additional details

Identifiers

DOI
10.1088/1126-6708/2008/02/080;

Publishing Information

Journal Title
Journal of High Energy Physics
Journal Volume
02
Journal Issue
2008
Journal Page Range
p. 080
ISSN
1126-6708

INIS

Country of Publication
Italy
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40066159
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
BHABHA SCATTERING; CORRECTIONS; CROSS SECTIONS; FERMIONS; FLAVOR MODEL; MASS; QUANTUM ELECTRODYNAMICS; VACUUM POLARIZATION
Descriptors DEC
COMPOSITE MODELS; ELASTIC SCATTERING; ELECTRODYNAMICS; FIELD THEORIES; MATHEMATICAL MODELS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; SCATTERING