107 citations · 1.9k across the 144 of their papers we have counts for
13 papers · 1 filter
A Model-independent Description of New Physics effects in e+e- to t tbar
G. J. Gounaris, J. Layssac, F. M. Renard
We study the potential of a future 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-i…
Dynamical Scenarios for Anomalous Interactions involving t, b quarks and bosons
G. J. Gounaris, D. T. Papadamou, F. M. Renard
In the present paper we explore various dynamical scenarios for New Physics (NP) which could be generated by very heavy particles and observed in the form of non-standard "low ener…
Longitudinal Polarization at future Colliders and Virtual New Physics Effects
F. M. Renard, C. Verzegnassi
The theoretical merits of longitudinal polarization asymmetries of electron-positron annihilation into two final fermions at future colliders are examined, using a recently propose…
Observability at LEP2 hadronic channels of a Z' with small lepton couplings
G. Montagna, F. Piccinini, J. Layssac +2
We consider the effects of a number of models with one extra , with enhanced couplings to quarks, in the final \underline{hadronic} channels at LEP2. We show that, for a number…
General description of New Physics in t, b and boson Interactions and its Unitarity Constraints
G. J. Gounaris, D. T. Papadamou, F. M. Renard
We list all possible dim=6 CP conserving and SU(3)* SU(2)*U(1) gauge invariant interactions, which could be generated in case no new particles would be reachable in the future Coll…
Effective lagrangian description of top production and decay
G. J. Gounaris, M. Kuroda, F. M. Renard
We propose a rather general description of residual New Physics (NP) effects on the top quark couplings. These effects are described in terms of 20 gauge invariant operator…
Searches for Clean Anomalous Gauge Couplings effects at present and future colliders
A. Blondel, F. M. Renard, L. Trentadue +1
We consider the virtual effects of a general type of Anomalous (triple) Gauge Couplings on various experimental observables in the process of electron-positron annihilation into a…
Z' Physics
P. Chiappetta, C. Verzegnassi, A. Fiandrino +8
The limits on extra neutral gauge bosons, which could be reached at LEP2, are reviewed. Exclusion and discovery limits are discussed for f\bar f and WW production.
Anomalous effects in the WW channel at
P. Chiappetta, F. M. Renard, C. Verzegnassi
We consider the virtual signals of a of very general type in the process at a future linear collider of 2000 GeV c.m. energy (). We show th…
Z' Reservation at LC2000
J. Layssac, G. Montagna, O. Nicrosini +3
We consider the possibility that one extra exists with a mass of more then two TeV and fermion couplings that do not violate (charged) lepton universality. We show tha…
Residual New Physics Effects in and Collisions at NLC
G. J. Gounaris, J. Layssac, J. E. Paschalis +2
We report on a set of studies concerning the description of New Physics (NP) effects characterized by a scale much higher than the electroweak scale. We concentrate on the residual…
Hadrophilic Z':a bridge from LEP1, SLC and CDF to LEP2 anomalies
P. Chiappetta, J. Layssac, F. M. Renard +1
In order to explain possible departures from the Standard Model predictions for and production at peak, we propose the existence of a vector boson with…
Triple Gauge Boson Couplings
G. Gounaris, J. -L. Kneur, D. Zeppenfeld +53
We present the results obtained by the "Triple Gauge Couplings" working group during the LEP2 Workshop (1994-1995). The report concentrates on the measurement of and co…