Publication:
The role of chiral lagrangians in strongly interacting WlWl signals at pp supercolliders

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1991
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Herrero, M. J.
Terrón, J.
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Springer Verlag
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In this paper we apply a simple phenomenological model to describe the scattering amplitudes of strongly interacting longitudinal gauge bosons at the future pp colliders, LHC and SSC. The model is based on the use of the well-known techniques from chiral effective Lagrangians and chiral perturbation theory, supplemented by a unitarization method for the scattering amplitudes. The generality of the approach allows one to deal with various physical situations in the unknown symmetry breaking sector of the Standard Model. In particular we mimic the two typical scenarios for the symmetry breaking sector: one of Higgs-type and the other of QCD-type. Two different unitarization methods have been implemented for comparison: the Pade approximants method and the K-matrix method. The first one permits the incorporation of the possibility of dynamical resonances as it can develop poles for the various different (I,J)-channels. A systematic study of strongly interacting signals for both LHC and SSC is presented, and their rates and efficiencies are compared.
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