Searching for Heavy Charged Higgs Bosons through Top Quark Polarization

Abstract

We study the production of a heavy charged Higgs boson at the Large Hadron Collider (LHC) in $gb\to H^{-}t$ within a Two Higgs Doublet Model (2HDM). The chiral structure of the $H^{-}t\bar{b}$ coupling can trigger a particular spin state of the top quark produced in the decay of a charged Higgs boson and, therefore, is sensitive to the underlying mechanism of the Electro-Weak Symmetry Breaking (EWSB). Taking two benchmark models (2HDM type-I and 2HDM type-Y) as an example, we show that inclusive rates, differential distributions as well as forward-backward asymmetries of the top quark's decay products can be used to search for heavy charged Higgs bosons as well as a model discriminators.

7 pages; 2 Figures; 2 Tables; To appear for IAS Program on HEP, January 2019, Hong Kong, based on arXiv:1807.11306

References in corpus (10)

• An Introduction to PYTHIA 8.2
• Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations
• Models of Yukawa interaction in the two Higgs doublet model, and their collider phenomenology
• Polarized tops from new physics: signals and observables
• The Top Quark Decay Vertex in Standard Model Extensions
• Top Quark Polarization As A Probe of Models with Extra Gauge Bosons
• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel
• Probing Heavy Charged Higgs Boson at the LHC
• Top quark polarization as a probe of charged Higgs bosons
• Boosted Top quark polarization

Cited by in corpus (3)

• Two-Higgs-Doublet Model with Soft CP-violation Confronting Electric Dipole Moments and Colliders
• Breaking down the entire spectrum of spin correlations of a pair of particles involving fermions and gauge bosons
• On two-body and three-body spin correlations in leptonic $t\bar{t}Z$ production and anomalous couplings at the LHC