Anomalous couplings in e+e-→W+W-γ at CERN LEP 2 and NLC
- 1. Instituto de Fisica Teorica, Universidade Estadual Paulista, Rua Pamplona 145, CEP 01405--900 Sao Paulo (Brazil)
Description
We present sensitivity limits on the coefficients of a dimension-6 effective Lagrangian that parametrizes the possible effects of new physics beyond the standard model. Our results are based on the study of the process e+e-→W+W-γ at CERN LEP 2 and NLC energies. In our calculations, we include all the new anomalous interactions, involving vectors and Higgs bosons, and take into account the standard model irreducible background. We analyze the impact of these new interactions on the total cross section, including the effects of the initial electron and final W polarizations. We then focus on the operators that will not be constrained by the e+e-→W+W- process, obtaining limits based on the photon energy distribution. copyright 1997 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 56
- Journal Issue
- 7
- Journal Page Range
- p. 4384-4391.
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29020580
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CERN; COUPLING; ELECTRON-POSITRON INTERACTIONS; ENERGY; HIGGS BOSONS; LAGRANGIAN FUNCTION; PHOTONS; POLARIZATION; SENSITIVITY; STANDARD MODEL; TOTAL CROSS SECTIONS; W MINUS BOSONS; W PLUS BOSONS
- Descriptors DEC
- BOSONS; CROSS SECTIONS; ELEMENTARY PARTICLES; FIELD THEORIES; FUNCTIONS; GRAND UNIFIED THEORY; INTERACTIONS; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; INTERNATIONAL ORGANIZATIONS; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; PARTICLE INTERACTIONS; PARTICLE MODELS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS