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This study reexamines the potential for a first-order electroweak phase transition in the next-to-minimal two Higgs doublet model (N2HDM), exploring diverse parameter spaces. We focus on the generation of stochastic gravitational waves (GW) and compare the results with data from major GW observatories to assess detectability. Additionally, we analyze the phase transition strength by evaluating entropy production during the transition.

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N2HDM, Entropy Production and Stochastic Gravitational Waves

  • 会议论文

  • 发表日期：

    2025年

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  • Arnab Chaudhuri,
  • Kazunori Kohri

摘要

This study reexamines the potential for a first-order electroweak phase transition in the next-to-minimal two Higgs doublet model (N2HDM), exploring diverse parameter spaces. We focus on the generation of stochastic gravitational waves (GW) and compare the results with data from major GW observatories to assess detectability. Additionally, we analyze the phase transition strength by evaluating entropy production during the transition.