Speaker
Ms
Rocío del Rey Bajo
(UAM)
Description
We study the leading effective interactions between the Standard Model fields and a generic singlet CP-odd (pseudo)Goldstone boson. Two possible frameworks for electroweak symmetry breaking are considered: linear and non-linear. For the latter case, the basis of leading effective operators is determined and compared with that for the linear expansion. Associated phenomenological signals at colliders are explored for both scenarios, deriving new bounds and analyzing future prospects, including LHC and High Luminosity LHC sensitivities. Mono- Z, mono-W, W-photon plus missing energy and on-shell top final states are most promising signals expected in both frameworks. In addition, non-standard Higgs decays and mono-Higgs signatures are especially prominent and expected to be dominant in non-linear realizations.
Primary authors
Prof.
Belén Gavela
(Universidad Autónoma de Madrid)
Dr
Ilaria Brivio
(Niels Bohr International Academy, University of Copenhagen)
Dr
Jose Miguel No
(Department of Physics, King’s College London)
Dr
Ken Mimasu
(Centre for Cosmology, Particle Physics and Phenomenology (CP3) Université catholique de Louvain)
Dr
Luca Merlo
(Universidad Autónoma de Madrid)
Ms
Rocío del Rey Bajo
(UAM)
Prof.
Veronica Sanz
(Department of Physics and Astronomy, University of Sussex,)
