Perturbative unitarity bounds on di-boson scalar resonances

Luca Di Luzio; Jernej F. Kamenik; Marco Nardecchia

doi:10.1051/epjconf/201716407026

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 164, 07026 (2017)
https://doi.org/10.1051/epjconf/201716407026

Perturbative unitarity bounds on di-boson scalar resonances

Luca Di Luzio¹^a, Jernej F. Kamenik²^,3^b and Marco Nardecchia⁴^c

¹ Institute for Particle Physics Phenomenology, Department of Physics, Durham University, DH1 3LE, UK
² Jožef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
³ Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia
⁴ CERN, Theoretical Physics Department, Geneva, Switzerland

^a e-mail: luca.di-luzio@durham.ac.uk
^b e-mail: jernej.kamenik@cern.ch
^c e-mail: marco.nardecchia@cern.ch

Published online: 5 December 2017

Abstract

We consider the constraints implied by partial wave unitarity on new physics in the form of di-boson resonances at LHC. We derive the scale where the effective description in terms of the SM supplemented by a single scalar resonance is expected to break down depending on the resonance width and signal cross-section.

© The Authors, published by EDP Sciences, 2017

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).