arXiv subjects

N. Mastroyiannopoulos

Publications and source records attributed to N. Mastroyiannopoulos.

2 recordsLinked to original sources

arXiv1998

Extended Modified Observable Technique for a Multi-Parametric Trilinear Gauge Coupling Estimation at LEP II

This paper describes the extension of the Modified Observables technique in estimating simultaneously more than one Trilinear Gauge Couplings. The optimal properties, unbiasedness and consistent error estimation of this method are demonstrated by Monte Carlo experimentation using $\ell νjj $ four-fermion final state topologies. Emphasis is given in the determination of the expected sensitivities in estimating the $λ_γ - Δg_{1}^{z}$ and $Δk_γ - Δg_{1}^{z}$ pair of couplings with data from the 183 GeV LEPII run.

hep-ex↗

arXiv1998

Multidimensional Binning Techniques for a Two Parameter Trilinear Gauge Coupling Estimation at LEP II

This paper describes two generalization schemes of the Optimal Variables technique in estimating simultaneously two Trilinear Gauge Couplings. The first is an iterative procedure to perform a 2-dimensional fit using the linear terms of the expansion of the probability density function with respect to the corresponding couplings, whilst the second is a clustering method of probability distribution representation in five dimensions. The pair production of W's at 183 GeV center of mass energy, where one W decays leptonically and the other hadronically, was used to demonstrate the optimal properties of the proposed estimation techniques.

hep-ex↗