2009/11/30 by R. Barbieri, Riccardo Barbieri, Antonio E. Carcamo +4 · 26 citations
Physics and Astronomy · #Boson #Electroweak interaction #Gauge boson #Gauge theory #High-Energy Particle Collisions Research #Large Hadron Collider #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Vector boson #hep-ph
paper · pdf · doi:10.1007/jhep03(2010)068
published in Journal of High Energy Physics 2010(3) (Springer Nature) · 17 pages, 4 figures, 2 tables
openalex publication_date 2010/03/01 · arxiv created 2010/03/31 · arxiv updated 2015/03/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
An unspecified strong dynamics may give rise to composite vectors sufficiently light that their interactions, among themselves or with the electroweak gauge bosons, be approximately described by an effective Lagrangian invariant under SU(2)L× SU(2)R/ SU(2)L+R. We study the production at the LHC of two such states by vector boson fusion or by the Drell--Yan process in this general framework and we compare it with the case of gauge vectors from a SU(2)L× SU(2)R× SU(2)N gauge model spontaneously broken to the diagonal SU(2) subgroup by a generic σ-model. Special attention is payed to the asymptotic behaviour of the different amplitudes in both cases. The expected rates of multi-lepton events from the decay of the composite vectors are also given. A thorough phenomenological analysis and the evaluation of the backgrounds to such signals, aiming at assessing the visibility of composite-vector pairs at the LHC, is instead deferred to future work.