Collider prospects for the muon g - 2 in a general two-Higgs-doublet model
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 mec...
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| Hauptverfasser: | , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
27 October 2021
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| In: |
Physical review
Year: 2021, Jahrgang: 104, Heft: 7, Pages: 1-8 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.104.075036 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.104.075036 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.104.075036 |
| Verfasserangaben: | Wei-Shu Hou, Rishabh Jain, Chung Kao, Girish Kumar, and Tanmoy Modak |
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| 520 | |a 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. | ||
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