4.7 Article

Explanation of the W mass shift at CDF II in the extended Georgi-Machacek model

Related references

Note: Only part of the references are listed.
Article Astronomy & Astrophysics

Type-II seesaw triplet scalar effects on neutrino trident scattering

Yu Cheng et al.

Summary: In the Type-II seesaw model, the introduction of an electroweak triplet scalar field Delta is essential for the generation of small neutrino masses. The non-zero vacuum expectation value of Delta affects the W mass, but recent data suggest that this effect can be neglected.

PHYSICS LETTERS B (2022)

Article Astronomy & Astrophysics

Implication of the W boson mass anomaly at CDF II in the Higgs triplet model with a mass difference

Shinya Kanemura et al.

Summary: A new report from the CDF II experiment shows a significant deviation in the measured mass of the W boson compared to the standard model prediction. While other high energy experiments have consistent results, the possibility of explaining this anomaly using the Higgs triplet model is discussed.

PHYSICS LETTERS B (2022)

Article Multidisciplinary Sciences

High-precision measurement of the W boson mass with the CDF II detector

T. Aaltonen et al.

Summary: This study measured the mass of the W boson and compared it with the expectation of the standard model of particle physics. The results show a significant discrepancy between the measured value and the expectation.

SCIENCE (2022)

Article Astronomy & Astrophysics

New physics effects on the W-boson mass from a doublet extension ofthe SM Higgs sector

Henning Bahl et al.

Summary: In this paper, possible new physics contributions to the W-boson mass from extended Higgs sectors are analyzed, focusing on the Two-Higgs-Doublet Model as an example. The compatibility between parameter regions of the model and the latest CDF experimental results is assessed, along with the compatibility with other precision measurements.

PHYSICS LETTERS B (2022)

Article Astronomy & Astrophysics

On the W mass and new Higgs bosons

Pavel Fileviez Perez et al.

Summary: This article discusses the prediction of the W boson mass in a simple extension of the Standard Model, specifically with a real scalar triplet. The model can naturally accommodate the reported shift in the W mass without modifying the Standard Model value for the Z mass. The article also explores the implications and properties of the new Higgs bosons, including the predicted partial decay widths of the new charged Higgs and the dominant decay of the neutral Higgs into a pair of W gauge bosons.

PHYSICS LETTERS B (2022)

Article Astronomy & Astrophysics

Enhancement of the W boson mass in the Georgi-Machacek model

Poulami Mondal

Summary: The recent CDF-II measurement of the mass of the W boson shows a significant tension with the Standard Model expectation. This tension can be explained within the framework of beyond-SM dynamics, such as the Georgi-Machacek model. In this model, the tree-level rho parameter is kept at 1, and the parameter space is explored to explain the shift in the W mass.

PHYSICS LETTERS B (2022)

Article Physics, Particles & Fields

Interpreting electroweak precision data including the W-mass CDF anomaly

Alessandro Strumia

Summary: The study globally fits electroweak data and finds that new physics corrections can explain the anomaly in the W boson mass. Tree-level contributions from multi-TeV new physics can fit the anomaly compatibly with collider bounds, while loop-level contributions must be around the weak scale to fit the anomaly.

JOURNAL OF HIGH ENERGY PHYSICS (2022)

Article Astronomy & Astrophysics

W-boson mass in the triplet seesaw model

Julian Heeck

Summary: The CDF collaboration has published a precision measurement of the W-boson mass that deviates significantly from the Standard Model prediction. They have studied a well-motivated scenario involving new multiplets that can explain this discrepancy and can be tested at the LHC.

PHYSICAL REVIEW D (2022)

Article Astronomy & Astrophysics

Type-II seesaw triplet scalar effects on neutrino trident scattering

Yu Cheng et al.

Summary: The Type-II Seesaw model involves the introduction of a Delta field to generate small neutrino masses, affecting the W mass and rare neutrino trident scattering. Experimental measurements of the W mass have significant impact on the rho parameter, constraining the range of the vacuum expectation value of the Delta field.

PHYSICS LETTERS B (2022)

Article Astronomy & Astrophysics

Implication of the W boson mass anomaly at CDF II in the Higgs triplet model with a mass difference

Shinya Kanemura et al.

Summary: The new report provides a measurement of the W boson mass which shows a deviation from the standard model prediction. The anomaly can potentially be explained by the Higgs triplet model under certain constraints.

PHYSICS LETTERS B (2022)

Article Physics, Particles & Fields

HEPfit: a code for the combination of indirect and direct constraints on high energy physics models

J. de Blas et al.

EUROPEAN PHYSICAL JOURNAL C (2020)

Review Physics, Multidisciplinary

REVIEW OF PARTICLE PHYSICS

P. A. Zyla et al.

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS (2020)

Article Astronomy & Astrophysics

Custodial symmetry violation in the Georgi-Machacek model

Ben Keeshan et al.

PHYSICAL REVIEW D (2020)

Article Astronomy & Astrophysics

One-loop renormalized Higgs boson vertices in the Georgi-Machacek model

Cheng-Wei Chiang et al.

PHYSICAL REVIEW D (2018)

Article Astronomy & Astrophysics

Effects of custodial symmetry breaking in the Georgi-Machacek model at high energies

Simone Blasi et al.

PHYSICAL REVIEW D (2017)

Article Astronomy & Astrophysics

The decoupling limit in the Georgi-Machacek model

Katy Hartling et al.

PHYSICAL REVIEW D (2014)

Article Physics, Particles & Fields

Enhancements of weak gauge boson scattering processes at the CERN LHC

Cheng-Wei Chiang et al.

JOURNAL OF HIGH ENERGY PHYSICS (2013)

Article Astronomy & Astrophysics

Unitarity bounds in the Higgs model including triplet fields with custodial symmetry

Mayumi Aoki et al.

PHYSICAL REVIEW D (2008)