Higgs alignment and novel C P -violating observables in two-Higgs-doublet models

Low, Ian; Shah, Nausheen R.; Wang, Xiao-Ping

doi:10.1103/PhysRevD.105.035009

Title: Higgs alignment and novel $C P$ -violating observables in two-Higgs-doublet models

Journal Article · Wed Feb 09 00:00:00 EST 2022 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.105.035009· OSTI ID:1844268

Low, Ian;

;

Null results from searches for new physics at the Large Hadron Collider (LHC) tend to enforce the belief that new particles must be much heavier than the weak scale. We undertake a systematic study of the interplay between Higgs alignment and CP-violation in complex two-Higgs-doublet models, which enables us to construct a CP-violating scenario where new Higgs bosons are close to the weak scale after including stringent constraints from the electric dipole moment and measurements at the LHC. In addition, we propose a novel potential signal of CP-violation in the Higgs-to-Higgs decays, h₃ → h₂h₁, where h₃, h₂, and h₁ are the heaviest, second heaviest and the Standard Model-like neutral Higgs bosons, respectively. The decay could manifest itself in triple boson final states in h₁h₁h₁ and h₁h₁Z, which are quite distinct and provide unique venues for new measurements at the LHC.

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Research Organization:: Wayne State Univ., Detroit, MI (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0021497; AC02-06CH11357; SC0010143

OSTI ID:: 1844268

Alternate ID(s):: OSTI ID: 1962410

Report Number(s):: DOE-WSU-1497-2; PRVDAQ; 035009

Journal Information:: Physical Review D, Journal Name: Physical Review D Vol. 105 Journal Issue: 3; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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