17-22 April 2017
UZ Obergurgl
Europe/Zurich timezone

New ALP collider signals

18 Apr 2017, 17:45
UZ Obergurgl

UZ Obergurgl

University Center Obergurgl Gaisbergweg 5 6456 Obergurgl Austria
Afternoon Session Higgs and the Standard Model Tuesday Afternoon


Rocío del Rey (Universidad Autónoma de Madrid - IFT)


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

Veronica Sanz Gonzalez Ken Mimasu (University of Sussex) Rocío del Rey (Universidad Autónoma de Madrid - IFT) Jose Miguel No Redondo (University of Sussex (GB)) Belen Gavela Legazpi (Universidad Autonoma de Madrid (ES)) Ilaria Brivio (Universidad Autónoma de Madrid) Luca Merlo (Universidad Autonoma de Madrid)

Presentation Materials