Probing anomalous triple boson vertices at futuree+e−colliders

Pat Kalyniak, Paul Madsen, Nita Sinha, Rahul Sinha
1995 Physical Review D, Particles and fields  
We explore the detection potential of the four lepton production processes e^+e^-→ l^+ν l^' -ν for anomalous contributions to the triple boson vertices at proposed future high energy colliders with center-of-mass energies of 500 GeV and 1 TeV. The predicted bounds are of the order of a few percent for the CP-even couplings κ_V (V=γ,Z) at the higher energy; we show that these limits can be improved by as much as a factor of two through suitable phase space cuts. A polarized beam facility, with
more » ... s ability to access helicity information, could provide constraints on the vertices significantly tighter than those achievable from an analysis of total cross-section alone. The asymmetries in experimental observables produced by an explicitly CP violating triple vertex contribution are seen to be below the expected level of statistical precision of approximately 1.5 %; asymmetries in the individual contributing helicity amplitudes might however be detectable.
doi:10.1103/physrevd.52.3826 pmid:10019609 fatcat:oabdcem45jhbnpxg4toe67xssm