Collider prospects for the muon g - 2 in a general two-Higgs-doublet model

• Verfasst von: Hou, Wei-Shu [VerfasserIn]
• Verfasst von: Jain, Rishabh [VerfasserIn]
• Verfasst von: Kao, Chung [VerfasserIn]
• Verfasst von: Kumar, Girish [VerfasserIn]
• Verfasst von: Modak, Tanmoy [VerfasserIn]
• Titel: Collider prospects for the muon g - 2 in a general two-Higgs-doublet model
• Verf.angabe: Wei-Shu Hou, Rishabh Jain, Chung Kao, Girish Kumar, and Tanmoy Modak
• E-Jahr: 2021
• Jahr: 27 October 2021
• Umfang: 8 S.
• Fussnoten: Gesehen am 31.03.2022
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2021
• Band/Heft Quelle: 104(2021), 7 vom: Okt., Artikel-ID 075036, Seite 1-8
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.104.075036
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1797099809

Abstract

Recent progress on muon g−2 measurement prompts one to take it even more seriously. In the general two Higgs doublet model that allows extra Yukawa couplings, we take a simplified approach of single enhanced coupling. We fix the charged lepton flavor violating coupling, ρτμ=ρμτ, via the one-loop mechanism, for illustrative masses of the heavy scalar H and pseudoscalar A, where we assume mA=mH+. Since extra top Yukawa couplings are plausibly the largest, we turn on ρtt and find that LHC search for gg→H,A→τμ gives a more stringent bound than from τ→μγ with the two-loop mechanism. Turning on a second extra top Yukawa coupling, ρtc, can loosen the bound on ρtt, but LHC constraints can again be more stringent than from B→Dμν versus Deν universality. This means that evidence for H,A→τμ may yet emerge with full LHC Run 2 data, while direct search for τ±μ∓bW+ or t¯cbW+ (plus conjugate) may also bear fruit.