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March 3, 2026Journal of High Energy PhysicsOpen Access

Vacuum structure of an extended standard model with U(1)D symmetry

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Authors

KNKeiko NagaoYAYunita Kristanti AndrianiYDYayun Ding

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Overview

Observational analysis demonstrates stable vacuum in models with U(1)D symmetry, indicating feasible constraints.

Key Points

  • A stable vacuum structure is identified within an extended scalar potential that adheres to both theoretical constraints and experimental conditions.
  • Key metrics include the existence of a global minimum alongside constraints on perturbativity extending to the Planck scale.
  • Assessment using numerical methods reveals a small parameter space accommodating experimental constraints from Higgs invisible decay.
  • Findings highlight the complexity of the vacuum structure in the extended model compared to the Standard Model, warranting further exploration.

Cite This Study

Nagao et al. (2026) studied this question.

synapsesocial.com/papers/69a75c05c6e9836116a245e2https://doi.org/10.1007/jhep01(2026)089
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