Explaining the GeV antiproton/$γ-$ray excesses and W-boson mass anomaly in an inert two Higgs doublet model

Zhu, C.; Cui, Minggen; Xia, Zi-Qing; Z, Yu; Huang, Xin; Yuan, Qiang; Fan, Yi‐Zhong

doi:10.48550/arxiv.2204.03767

Cited by 9 publications

(11 citation statements)

References 47 publications

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“…The most recent PDG value of ρ exp = 1.00038 ± 0.00020 [77] has to be scaled by a factor of m CDF W /m P DG W 2 to give updated value of ρ 1.00219 ± 0.00044 after including the CDF results. Using (12) gives v ∆ 4.06997 ± 0.26529 GeV, which in turn is consistent with the triplet VEV of Fig. 2, to be obtained directly from the m CDF W value fit in Sec.…”

Section: Gauge Boson Massessupporting

confidence: 83%

The Triplet Dirac Seesaw in the View of the Recent CDF-II W Mass Anomaly

Попов¹,

Srivastava²

2022

Preprint

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In the present letter, a Dirac neutrino mass model is presented in the view of the new result on W boson mass of m CDF −II W = 80.4335 ± 0.0094 GeV, recently reported by the CDF-II experimental collaboration. The newly measured value of the W mass anomaly shows a 7-σ deviation from that predicted by the standard model. The model explains the CDF-II W boson mass anomaly by extending the standard model with hypercharge zero vector-like fermion triplet. Symmetry is amended with a global U (1) B−L which is broken with an hypercharge zero electroweak triplet. It is demonstrated that the model can successfully explain CDF-II result, Dirac neutrino mass origin, while satisfying standard model precision constraints and collider constraints with scalar and fermion triplet masses in the ranger 1.4 TeV−5.2 TeV and 100 TeV −10 13 GeV, respectively.

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Section: Gauge Boson Massessupporting

confidence: 83%

The Triplet Dirac Seesaw in the View of the Recent CDF-II W Mass Anomaly

Попов¹,

Srivastava²

2022

Preprint

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“…Note added: As this paper was being finalized, Refs. [67][68][69][70][71][72][73] appeared, which also consider the implications of the recent M W measurement.…”

mentioning

confidence: 99%

Oblique Lessons from the $W$ Mass Measurement at CDF II

Asadi¹,

Cesarotti²,

Fraser³

et al. 2022

Preprint

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The CDF collaboration recently reported a new precise measurement of the W boson mass M W with a central value significantly larger than the SM prediction. We explore the effects of including this new measurement on a fit of the Standard Model (SM) to electroweak precision data. We characterize the tension of this new measurement with the SM and explore potential beyond the SM phenomena within the electroweak sector in terms of the oblique parameters S, T and U . We show that the large M W value can be accommodated in the fit by a large, nonzero value of U , which is difficult to construct in explicit models. Assuming U = 0, the electroweak fit strongly prefers large, positive values of T . Finally, we study how the preferred values of the oblique parameters may be generated in the context of models affecting the electroweak sector at tree-and loop-level. In particular, we demonstrate that the preferred values of T and S can be generated with a real SU(2) L triplet scalar, the humble swino, which can be heavy enough to evade current collider constraints, or by (multiple) species of a singlet-doublet fermion pair. We highlight challenges in constructing other simple models, such as a dark photon, for explaining a large M W value, and several directions for further study.

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“…Note added. As we were completing this paper, several papers [59][60][61][62][63][64][65][66] appeared that also discuss the impact of the new m W measurement on new physics scenarios.…”

Section: Jhep08(2022)308mentioning

confidence: 99%

SMEFT analysis of mW

Bagnaschi

Ellis

Madigan

et al. 2022

J. High Energ. Phys.

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We use the Fitmaker tool to incorporate the recent CDF measurement of mW in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SMEFT) including dimension-6 operators at linear order. We find that including any one of the SMEFT operators $$ \mathcal{O} $$ O HWB, $$ \mathcal{O} $$ O HD, $$ \mathcal{O} $$ O ℓℓ or $$ {\mathcal{O}}_{H\ell}^{(3)} $$ O H ℓ 3 with a non-zero coefficient could provide a better fit than the Standard Model, with the strongest pull for $$ \mathcal{O} $$ O HD and no tension with other electroweak precision data. We then analyse which tree-level single-field extensions of the Standard Model could generate such operator coefficients with the appropriate sign, and discuss the masses and couplings of these fields that best fit the CDF measurement and other data. In particular, the global fit favours either a singlet Z′ vector boson, a scalar electroweak triplet with zero hypercharge, or a vector electroweak triplet with unit hypercharge, followed by a singlet heavy neutral lepton, all with masses in the multi-TeV range for unit coupling.

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Explaining the GeV antiproton/$γ-$ray excesses and W-boson mass anomaly in an inert two Higgs doublet model

Cited by 9 publications

References 47 publications

The Triplet Dirac Seesaw in the View of the Recent CDF-II W Mass Anomaly

The Triplet Dirac Seesaw in the View of the Recent CDF-II W Mass Anomaly

Oblique Lessons from the $W$ Mass Measurement at CDF II

SMEFT analysis of mW

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