P. Kalyniak et al., PROBING ANOMALOUS TRIPLE BOSON VERTICES AT FUTURE E(-) COLLIDERS()E(), Physical review. D. Particles and fields, 52(7), 1995, pp. 3826-3835
We explore the detection potential of the four lepton production proce
sses e(+)e(-) --> l(+)nu l(--)nu for anomalous contributions to the tr
iple boson vertices at proposed future high energy colliders with cent
er-of-mass energies of 500 GeV and 1 TeV. The predicted bounds are of
the order of a few percent for the GP-even couplings kappa(V) (V = gam
ma, Z) at the higher energy; we show that these limits can be improved
by as much as a factor of 2 through suitable phase space cuts. A pola
rized beam facility, with its ability to access helicity information,
could provide constraints on the vertices significantly tighter than t
hose achievable from an analysis of total cross section alone. The bou
nds on the CP-odd coupling lambda(V) approach the indirect bounds from
neutron electric dipole measurements while those on kappa(V) are much
loose;. The asymmetries in experimental observables produced by such
an explicitly CP-violating triple vertex contribution are seen to be b
elow the expected level of statistical precision of approximately 1.5%
; asymmetries in the individual contributing helicity amplitudes might
however be detectable.