A Model independent description of new physics effects in e+ e- ---> t anti-t

Gounaris, G.J.; Layssac, J.; Renard, F.M.

doi:10.1103/PhysRevD.55.5786

A Model independent description of new physics effects in e+ e- ---> t anti-t

Nov, 1996

35 pages

Published in:

Phys.Rev.D 55 (1997) 5786-5803

e-Print:

hep-ph/9612335 [hep-ph]

DOI:

10.1103/PhysRevD.55.5786

Report number:

THES-TP-96-12,
PM-96-38

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Abstract:

We study the potential of a future

e~+e~-

collider for the search of anomalous gamma t t bar and Z t t bar couplings, assuming that CP-invariance holds. This is done in a model-independent way, considering that all six possible couplings do appear. Two experimental situations are envisaged, with and without electron beam polarization. Observability limits in the form of domains in the 6-dimensional parameter space are established. Illustrations for specific constrained models are also presented and implications for new physics searches are discussed.

12.15.Ji
14.70.Hp
14.65.Ha
14.70.Bh
electron positron: annihilation
electron: polarized beam
top: pair production
top
new interaction: search for
vertex function: (photon quark antiquark)

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