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 lepton portals for the muon 
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Kim, Seong-Sik; Lee, Hyun Min; Menkara, Adriana G.; Yamashita, Kimiko

doi:10.1103/physrevd.106.015008

Cited by 13 publications

(3 citation statements)

References 31 publications

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“…The regions favored by the muon g − 2 within 1σ(2σ) are shown in yellow(green). We find it necessary to set m φ around the TeV scale in order to counter the φ negative chirality enhanced contribution [13]. On the right, we show the correction to the W boson mass as a function of sin β.…”

Section: W Massmentioning

confidence: 99%

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The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

Kim

Lee

Menkara

et al. 2023

SciPost Phys. Proc.

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We propose a novel model which extends the Standard Model (SM) by introducing a SU(2)_DSU(2)D gauge symmetry. In this model, a dark SU(2)_DSU(2)D Higgs doublet and a Higgs bi-doublet can contribute to the muon g-2 anomaly and the WW boson mass, remaining in tune with the recent experimental results. At the same time, the isospin charged gauge boson of SU(2)_DSU(2)D becomes a plausible candidate for Dark Matter(DM). We find that the resulting parameter space can fit the muon g-2, the W boson mass and the DM constraints simultaneously.

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Section: W Massmentioning

confidence: 99%

“…The particle content of the model and their charges under the Z 2 parity are described in detail in reference [13].…”

Section: 1mentioning

confidence: 99%

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The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

Kim

Lee

Menkara

et al. 2023

SciPost Phys. Proc.

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Interpreting the W-mass and muon (g − 2) anomalies within a 2-Higgs doublet model

Benbrik,

Boukidi,

Manaut

2024

Nuclear Physics B

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W-boson mass anomaly from a general SU(2)_L scalar multiplet*

Huang

Geng

2023

Chinese Phys. C

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We explain the $W$-boson mass anomaly by introducing an $SU(2)_L$ scalar multiplet with general isospin and hypercharge in the case without its vacuum expectation value. It is shown that the dominant contribution from the scalar multiplet to the $W$-boson mass arises at one-loop level, which can be expressed in terms of the electroweak (EW) oblique parameters $T$ and $S$ at leading order. We firstly rederive the general formulae of $T$ and $S$ induced by a scalar multiplet of EW charges, confirming the results in the literature. We then study several specific examples of great phenomenological interest by applying these general expressions. As a result, it is found that the model with a scalar multiplet in an $SU(2)_L$ real representation with $Y=0$ cannot generate the required $M_W$ correction since it leads to vanishing values of $T$ and $S$. On the other hand, the cases with scalars in a complex representation under $SU(2)_L$ with a general hypercharge can explain the $M_W$ excess observed by CDF-\uppercase\expandafter{\romannumeral2} due to nonzero $T$ and $S$. We further take into account of the strong constraints from the perturbativity and the EW global fit of the precision data, and vary the isospin representation and hypercharge of the additional scalar multiplet, in order to assess the extent of the model to solve the $W$-boson mass anomaly. It turns out that these constraints play important roles in setting limits on the model parameter space. We also briefly describe the collider signatures of the extra scalar multiplet, especially when it contains long-lived heavy highly charged states. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Article funded by SCOAP3 and published under licence by Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Science and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd

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SU(2)D lepton portals for the muon g−2 , W

Cited by 13 publications

References 31 publications

The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

Interpreting the W-mass and muon (g − 2) anomalies within a 2-Higgs doublet model

W-boson mass anomaly from a general SU(2)_L scalar multiplet*

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SU(2)D lepton portals for the muon g−2 , W

Cited by 13 publications

References 31 publications

The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

The SU(2)$_{D}$ lepton portals for muon g - 2, W boson mass and dark matter

Interpreting the W-mass and muon (g − 2) anomalies within a 2-Higgs doublet model

W-boson mass anomaly from a general SU(2) L scalar multiplet*

Contact Info

Product

Resources

About

Interpreting the W-mass and muon (g − 2) anomalies within a 2-Higgs doublet model

W-boson mass anomaly from a general SU(2)_L scalar multiplet*