$W$-Boson Mass Anomaly from Scale Invariant 2HDM

Ghorbani, Karim; Ghorbani, Parsa Hossein

doi:10.48550/arxiv.2204.09001

Cited by 11 publications

(14 citation statements)

References 14 publications

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“…In the present paper, we will discuss the implications of the new CDF measurement on the Two-Higgs Doublet Model (2HDM) which predicts in its spectrum 2 CP-even, h and H (with M h < M H ), one CP-odd A and a pair of charged Higgs H ± . Recently, there have been several studies addressing a similar issue within: the 2HDM [7][8][9][10][11][12][13][14][15][16]57], triplet extension [18][19][20] and also other SM extensions . In the present study, we identify the observed SM Higgs with H which properties are consistent with the LHC measurements and assume that the second CP-even Higgs is lighter than 125 GeV.…”

Section: Introductionmentioning

confidence: 99%

Is the new CDF $M_W$ measurement consistent with the two higgs doublet model?

Abouabid¹,

Arhrib²,

Benbrik³

et al. 2022

Preprint

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Motivated by the new CDF measurement of the W boson mass reported recently which clearly illustrates a large deviation compared to the Standard Model (SM) prediction. In the present paper, we study the Two-Higgs Doublet Model (2HDM) contributions to M W and its phenomenological implications in the case where the heavy CP-even H is identified as the observed Higgs boson with a mass of 125 GeV. Taking into account theoretical and all the available experimental constraints as well as the new CDF measurement, we demonstrate that the 2HDM parameter space can provide a large correction which predicts the W mass close to the new CDF M W measurement. It is found that M H± = M A is excluded and the splitting of the charged Higgs boson with all other states is positive. We also discuss the consequence on the effective mixing angle sin 2 θ eff as well as the phenomenological implications on the charged Higgs and CP-odd decays.

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Section: Introductionmentioning

confidence: 99%

Is the new CDF $M_W$ measurement consistent with the two higgs doublet model?

Abouabid¹,

Arhrib²,

Benbrik³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In fact, the announcement of the W -mass has spurred a series of investigations, each invoking some NP scenario, some of the earliest ones being [21][22][23][24][25][26][27]. Further speculations in this direction have included, for instance, supersymmetric models [28][29][30][31][32][33], non-supersymmetric extended Higgs sectors [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51], vector-like fermions [52][53][54][55][56],…”

Section: Introductionmentioning

confidence: 99%

The muon $g-2$ and $W$-mass anomalies explained and the electroweak vacuum stabilised by extending the minimal Type-II seesaw

Chakrabarty¹

2022

Preprint

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The recent precise measurement of the W -mass by the CDF II collaboration is indicative of new physics beyond the Standard Model. On the other hand, a resolution of the longstanding muon g − 2 anomaly also calls for additional dynamics. In this work, we accommodate the two aforementioned anomalies in an extension of the minimal Type-II seesaw model. That is, the minimal Type-II model is augmented with an additional doubly charged scalar and vector leptons. While a chirality-flip of the vector leptons can predict the observed value of muon g − 2, the value of the recently reported W -mass can also be simultaneously achieved through the oblique parameters of the model. In addition, we further show that the parameter region allowing for the simultaneous resolution of the two anomalies complies with the neutrino mass data, lepton flavour violation and electroweak vacuum stability up to the Planck scale.

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“…In particular, it suggests that the precision electroweak parameter T [78,79] lies in the range 0.1 − 0.3, the precise value depending on the treatment of other experimental input and on the assumptions made about the combination with other precision parameters [80][81][82][83][84][85][86][87][88][89][90]. Several studies suggest that 2HDMs can accommodate these values [91][92][93][94][95][96][97][98][99].…”

Section: Introductionmentioning

confidence: 99%

Composite two-Higgs doublet model from dilaton effective field theory

Appelquist,

Ingoldby,

Piai

2022

Preprint

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We construct a composite two-Higgs-doublet model (2HDM) within the context of dilaton effective field theory. This EFT describes the particle spectrum observed in lattice simulations of a near-conformal SU (3) gauge field theory. A second Higgs doublet is naturally accommodated within the EFT, used previously to construct a one-Higgs-doublet model. We explore the interplay of phenomenological and EFT requirements, supplemented by information from numerical lattice studies of the SU (3) gauge theory with eight fundamental (Dirac) fermions. We build a viable model with moderate parameter tuning. In the relevant portion of parameter space, we match the model to a conventional general description of 2HDMs, and comment on the role of custodial symmetry (breaking) in the scalar potential. Contributions to the precision electroweak parameter T provide a possible explanation for the recent measurement of the W-boson mass by CDF II.1 We adopt Mπ = 4 TeV as an indicative reference mass scale for the PNGBs. This scale could be lowered, and the fine tuning further softened, as some experimental bounds from direct searches involve suppressed model-dependent couplings that enter certain production rates. See for instance Refs. [71,72] for useful dedicated phenomenological studies.

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$W$-Boson Mass Anomaly from Scale Invariant 2HDM

Cited by 11 publications

References 14 publications

Is the new CDF $M_W$ measurement consistent with the two higgs doublet model?

Is the new CDF $M_W$ measurement consistent with the two higgs doublet model?

The muon $g-2$ and $W$-mass anomalies explained and the electroweak vacuum stabilised by extending the minimal Type-II seesaw

Composite two-Higgs doublet model from dilaton effective field theory

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