Radiative corrections to decays of charged Higgs bosons in two Higgs doublet models

2021/08/26 by Masashi Aiko, Aiko, Masashi, Shinya Kanemura +3 · 1 citation
Physics and Astronomy · #Boson #Branching fraction #Cosmology and Gravitation Theories #Electroweak interaction #Elementary particle #FOS: Physical sciences #Gauge boson #Higgs boson #Higgs field #Higgs mechanism #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Radiative transfer #Standard Model (mathematical formulation) #Technicolor #hep-ph

paper · pdf · doi:10.48550/arxiv.2108.11868

published in arXiv (Cornell University) (Cornell University) · 68 pages, 17 figures; revised version as accepted by Nuclear Physics B

openalex publication_date 2021/08/26 · arxiv created 2021/10/21 · arxiv updated 2021/10/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We calculate the next-to-leading order (NLO) electroweak (EW) corrections to decay rates of charged Higgs bosons for various decay modes in the four types of two Higgs doublet models (THDMs) with the softly broken discrete Z₂ symmetry. Decay branching ratios of charged Higgs bosons are evaluated including NLO EW corrections, as well as QCD corrections up to next-to-next-to-leading order (NNLO). We comprehensively study impacts of the NLO EW corrections to the branching ratios in nearly alignment scenarios where the couplings constants of the Higgs boson with the mass of 125 GeV are close to those predicted in the standard model. Furthermore, in the nearly alignment scenario, we discuss whether or not the four types of THDMs can be distinguished via the decays of charged Higgs bosons. We find that characteristic predictions of charged Higgs branching ratios can be obtained for all types of the THDMs, by which each type of the THDMs are separated, and information on the internal parameters of the THDMs can be extracted from the magnitudes of the various decay branching ratios.

Citations

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Higgs Decay H -->γγ through a W Loop: Difficulty with Dimensional Regularization
• Light Minimal Supersymmetric Standard Model Higgs Boson Scenario and its Test at Hadron Colliders
• Infrared singularities and massive fields
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• Tests of the Standard Model at the International Linear Collider

Cited by

• Electroweak baryogenesis in 2HDM without EDM cancellation

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