Published April 2001 | Version v1
Report Metadata-only

Probing anomalous quartic gauge-boson couplings via e+e- → 4 fermions + γ

Creators

  • 1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  • 2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  • 3. Leipzig Univ. (Germany). Inst. fuer Theoretische Physik
  • 4. Rochester Univ., NY (United States). Dept. of Physics and Astronomy

Description

All lowest-order amplitudes for e+e-→4fγ are calculated including five anomalous quartic gauge-boson couplings that are allowed by electromagnetic gauge invariance and the custodial SU(2)c symmetry. Three of these anomalous couplings correspond to the operators L0, Lc, and Ln that have been constrained by the LEP collaborations in WWγ production. The anomalous couplings are incorporated in the Monte Carlo generator RACOONWW. Moreover, for the processes e+e-→4fγ RACOONWW is improved upon including leading universal electroweak corrections such as initial-state radiation. The discussion of numerical results illustrates the size of the leading corrections as well as the impact of the anomalous quartic couplings for LEP2 energies and at 500 GeV. (orig.)

Availability note (English)

Available from TIB Hannover: RA 2999(01-042)

Additional details

Publishing Information

Imprint Pagination
26 p.
ISSN
0418-9833
Report number
DESY--01-042

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
32031966
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ANGULAR CORRELATION; ANNIHILATION; ANTILEPTONS; ELECTRON-POSITRON INTERACTIONS; ENERGY SPECTRA; EXCITATION FUNCTIONS; GAMMA SPECTRA; GEV RANGE 100-1000; INTEGRAL CROSS SECTIONS; PAIR PRODUCTION; PHOTONS; QUARKS; SCATTERING AMPLITUDES; SU-2 GROUPS; WEINBERG-SALAM GAUGE MODEL
Descriptors DEC
AMPLITUDES; ANTIMATTER; ANTIPARTICLES; BOSONS; CORRELATIONS; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; FUNCTIONS; GEV RANGE; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; LEPTONS; LIE GROUPS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY; SPECTRA; SU GROUPS; SYMMETRY GROUPS; UNIFIED GAUGE MODELS; UNIFIED-FIELD THEORIES

Optional Information

Secondary number(s)
LU-ITP--2001/08; PSI-PR--01-05; UR--1634; HEP-PH--0104057