Adding pseudo-observables to the four-lepton experimentalist’s toolbox

Author:

Gainer James S.,González-Alonso Martín,Greljo Admir,Isaković Senad,Isidori Gino,Korytov Andrey,Lykken Joseph,Marzocca David,Matchev Konstantin T.,Milenović Predrag,Mitselmakher Guenakh,Mrenna Stephen,Park Myeonghun,Rinkevicius Aurelijus,Selimović Nudžeim

Abstract

Abstract The “golden” channel, in which the newly-discovered Higgs boson decays to four leptons by means of intermediate vector bosons, is important for determining the properties of the Higgs boson and for searching for subtle new physics effects. Different approaches exist for parametrizing the relevant Higgs couplings in this channel; here we relate the use of pseudo-observables to methods based on specifying the most general amplitude or Lagrangian terms for the HVV interactions. We also provide projections for sensitivity in this channel in several novel scenarios, illustrating the use of pseudo-observables, and analyze the role of kinematic distributions and (ratios of) rates in such H → 4 studies.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

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