Predictions for muon electric and magnetic dipole moments from 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>h</mml:mi><mml:mo stretchy="false">→</mml:mo><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>μ</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>
 in two-Higgs-doublet models with new leptons

Dermisek, Radovan; Hermanek, Keith; McGinnis, Navin; Yoon, Sangsik

doi:10.1103/physrevd.108.055019

Phys. Rev. D

2023

DOI: 10.1103/physrevd.108.055019

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Predictions for muon electric and magnetic dipole moments from h→μ+μ− in two-Higgs-doublet models with new leptons

Radovan Dermisek,

Keith Hermanek,

Navin McGinnis

et al.

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Cited by 6 publications

References 79 publications

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On-shell renormalization with vector-like leptons, one-loop muon–Higgs coupling and muon g − 2

Möhling,

Stöckinger,

Stöckinger-Kim

2024

J. High Energ. Phys.

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Models with vector-like leptons can strongly modify the lepton mass generation mechanism and lead to correlated effects in lepton–Higgs couplings and lepton dipole moments. Here we begin an analysis of higher-order corrections in such models by setting up a renormalization scheme with full on-shell conditions on the lepton self energies, masses and fields. A minimal set of fundamental parameters is renormalized in the $$ \overline{\textrm{MS}} $$ MS ¯ scheme. We provide a detailed discussion of lepton mixing and redundancies at higher orders, show how the relevant counterterms can be obtained from the renormalization conditions, and determine the β-functions corresponding to the scheme. As a first application we calculate the one-loop effective muon–Higgs coupling and analyse its correlation with the muon anomalous magnetic moment $$ \Delta {a}_{\mu}^{\textrm{VLL}} $$ ∆ a μ VLL . In the interesting case of large masses and opposite-sign coupling, the lowest-order correlation implies a fixed value of $$ \Delta {a}_{\mu}^{\textrm{VLL}} $$ ∆ a μ VLL around 22.5 × 10−10, while the higher-order corrections significantly reduce this value to the interval (10 . . . 18) × 10−10.

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On-shell renormalization with vector-like leptons, one-loop muon–Higgs coupling and muon g − 2

Möhling,

Stöckinger,

Stöckinger-Kim

2024

J. High Energ. Phys.

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Current status on pair-produced muon-philic vectorlike leptons in multilepton channels at the LHC

Kawamura,

Shin

2023

J. High Energ. Phys.

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In this work, we obtain the current limits on the pair production of vectorlike leptons decaying to a Standard Model gauge boson and a lepton in the second generation using the Run-2 data at the LHC. Since there is no dedicated search out of Run-2 data, we recast the ATLAS analyses searching for the type-III seesaw heavy leptons in the multi-lepton channels. There is no limit for the SU(2)L singlet vectorlike lepton beyond about 100 GeV, while the limit is about 780 GeV for the doublet one. Thus, dedicated searches for the vectorlike leptons are necessary, especially for the singlet one. We also study the general cases of the vectorlike lepton decays and future sensitivities at the HL-LHC.

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Electron g−2 foreshadowing discoveries at FCC-ee

Davoudiasl,

Giardino

2024

Phys. Rev. D

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A future e+e− circular collider (FCC-ee) may provide a unique probe of the electron Yukawa coupling through Higgs boson production on resonance. Motivated by this exciting possibility, we examine a simple model which can result in O(10) modifications of the Higgs coupling to electrons. The model can also lead to deviations in the electron anomalous magnetic moment, ge−2, which at present shows a +2.2σ or −3.7σ deviation, implied by differing precision determinations of the electromagnetic fine structure constant. The electron ge−2 can be a forerunner for FCC-ee discoveries which, as we elucidate, may not be accessible to the high-luminosity LHC measurements. A simple extension of our model can also account for the current deviation in the muon gμ−2. Published by the American Physical Society 2024

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Predictions for muon electric and magnetic dipole moments from h→μ+μ− in two-Higgs-doublet models with new leptons

Cited by 6 publications

References 79 publications

On-shell renormalization with vector-like leptons, one-loop muon–Higgs coupling and muon g − 2

On-shell renormalization with vector-like leptons, one-loop muon–Higgs coupling and muon g − 2

Current status on pair-produced muon-philic vectorlike leptons in multilepton channels at the LHC

Electron g−2 foreshadowing discoveries at FCC-ee

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