Collider phenomenology of vector resonances in WZ scattering processes
| Autor: | X. Marcano, Rafael L. Delgado, Juan José Sanz-Cillero, C. Garcia-Garcia, Maria J. Herrero, Antonio Dobado, Domenec Espriu |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
effective Lagrangian: chiral
Particle physics interpretation of experiments: CERN LHC Coll Hadron resonance: vector Inverse FOS: Physical sciences Proca gauge boson: leptonic decay High Energy Physics - Phenomenology (hep-ph) potential: hadronic Physics Gauge boson Large Hadron Collider electroweak interaction Scattering background Electroweak interaction High Energy Physics::Phenomenology scattering sensitivity Scattering amplitude High Energy Physics - Phenomenology scattering amplitude: unitarity Amplitude [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] signature gauge boson: longitudinal |
| Zdroj: | PoS 13th Conference on Quark Confinement and the Hadron Spectrum 13th Conference on Quark Confinement and the Hadron Spectrum, Jul 2018, Maynooth, Ireland. pp.220, ⟨10.22323/1.336.0220⟩ Scopus-Elsevier |
| DOI: | 10.22323/1.336.0220⟩ |
| Popis: | We study the production of vector resonances at the LHC via $WZ$ scattering processes and explore the sensitivities to these resonances for the expected future LHC luminosities. The electroweak chiral Lagrangian and the Inverse Amplitude Method (IAM) are used for analyzing a dynamically generated vector resonance, whose origin would be the (hypothetically strong) self interactions of the longitudinal gauge bosons, $W_L$ and $Z_L$. We implement the unitarized scattering amplitudes into a single model, the IAM-MC, that has been adapted to MadGraph~5. It is written in terms of the electroweak chiral Lagrangian and an additional effective Proca Lagrangian for the vector resonances, so that it reproduces the resonant behavior of the IAM and allows us to perform a realistic study of signal versus background at the LHC. We focus on the $pp\to WZjj$ channel, discussing first on the potential of the hadronic and semileptonic channels of the final $WZ$, and next exploring in more detail the clearest signals. These are provided by the leptonic decays of the gauge bosons, leading to a final state with $l^+_1l^-_1l^+_2\nu jj$, $l=e,\mu$, having a very distinctive signature, and showing clearly the emergence of the resonances with masses in the range of $1.5$-$2.5\,{\rm TeV}$, which we have explored. Comment: 8 pages, 5 figures, contributed to the XIII Quark Confinement and the Hadron Spectrum - Confinement2018, 31 July - 6 August 2018, Maynooth University, Ireland |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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