Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1995-05-26
Phys.Rev. D52 (1995) 3826-3835
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages,Latex,4 tar-uuencoded figures
Scientific paper
10.1103/PhysRevD.52.3826
We explore the detection potential of the four lepton production processes $e^{+}e^{-} \rightarrow l^{+} \nu l^{\prime -}\overline{\nu}$ 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 $\kappa_{V}$ (V=$\gamma$,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 its 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.
Kalyniak Pat
Madsen Poul Pheiffer
Sinha Neeharika
Sinha Rahul
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