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Physical Review D

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Possible experimental signatures at the CERN LHC of strongly interacting electroweak symmetry breaking

M. Fabbrichesi and L. Vecchi

INFN, Sezione di Trieste and Scuola Internazionale Superiore di Studi Avanzati, via Beirut 4, I-34014 Trieste, Italy

Phys. Rev. D 76, 056002 – Published 5 September, 2007

DOI: https://doi.org/10.1103/PhysRevD.76.056002

Abstract

If electroweak symmetry is broken by a new strongly interacting sector, new physics will probably manifest itself in gauge boson scattering at the CERN LHC. The relevant dynamics is well described in terms of an effective Lagrangian. We discuss the probable size of the coefficients of the relevant operators under a combination of model-independent constraints and reasonable assumptions based on two models of the strongly interacting sector. We compare these values with the LHC sensitivity and argue that they will be too small to be seen. Therefore, the presence of vector and scalar resonances required by unitarity will be the only characteristic signature. We analyze the most likely masses and widths of these resonances.

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