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

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Autor/in:
Erscheinungsjahr:
2022
Medientyp:
Text
Schlagwort:
  • High Energy Physics - Phenomenology
Beschreibung:
  • Recently, the CDF collaboration has reported a new precision measurement of the W-boson mass, M$_W$, showing a large deviation from the value predicted by the Standard Model (SM). In this paper, we analyse possible new physics contributions to M$_W$ from extended Higgs sectors. We focus on the Two-Higgs-Doublet Model (2HDM) as a concrete example. Employing predictions for the electroweak precision observables in the 2HDM at the two-loop level and taking into account further theoretical and experimental constraints, we identify parameter regions of the 2HDM in which the prediction for M$_W$ is close to the new CDF value. We assess the compatibility of these regions with precision measurements of the effective weak mixing angle and the total width of the Z boson.
Lizenz:
  • info:eu-repo/semantics/openAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/0b4b1a40-3a05-41f9-abf3-889f67120f1a