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@ARTICLE{Catumba:642192,
      author       = {Catumba, Guilherme and Hiraguchi, Atsuki and Hou, Wei-Shu
                      and Jansen, Karl and Kao, Ying-Jer and Lin, C.-J. David and
                      Ramos, Alberto and Sarkar, Mugdha},
      title        = {{L}attice investigation of custodial two-{H}iggs-doublet
                      model at weak quartic couplings},
      journal      = {Journal of high energy physics},
      volume       = {10},
      number       = {10},
      issn         = {1126-6708},
      address      = {Heidelberg},
      publisher    = {Springer},
      reportid     = {PUBDB-2025-05388, arXiv:2507.07759},
      pages        = {214},
      year         = {2025},
      note         = {cc-by, 28 pages, 13 figures. v2: edit to match published
                      version},
      abstract     = {The SU(2)–gauged custodial two-Higgs-doublet model, which
                      shares the same global-symmetry properties with the standard
                      model, is studied non-perturbatively on the lattice. The
                      additional Higgs doublet enlarges the scalar spectrum and
                      opens the possibility for spontaneous breaking of the global
                      symmetry. In this work we start by showing the occurrence of
                      spontaneous breaking of the custodial symmetry in a region
                      of the parameter space of the model. Following this, both
                      the spectrum and the running of the gauge coupling of are
                      examined at weak quartic couplings in the presence of the
                      custodial symmetry. The calculations are performed with
                      energy cutoffs ranging from 300 to 600 GeV on a line of
                      constant standard model physics, obtained by tuning bare
                      couplings to fix the ratio between the masses of the Higgs
                      and the W bosons, as well as the value of the renormalized
                      gauge coupling at the scale of the W boson mass. The
                      realizable masses for the additional scalar states are
                      explored. For the choice of bare quartic couplings in this
                      work, the estimated lower bound of these masses is found to
                      be well below the W boson mass, and independent of the
                      cutoff. We also study the finite temperature electroweak
                      transition along this line of constant standard model
                      physics, revealing properties of a smooth crossover
                      behavior.},
      keywords     = {Multi-Higgs Models (autogen) / Other Lattice Field Theories
                      (autogen) / Phase Transitions (autogen)},
      cin          = {CQTA},
      ddc          = {530},
      cid          = {I:(DE-H253)CQTA-20221102},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611)},
      pid          = {G:(DE-HGF)POF4-611},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2507.07759},
      howpublished = {arXiv:2507.07759},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2507.07759;\%\%$},
      doi          = {10.1007/JHEP10(2025)214},
      url          = {https://bib-pubdb1.desy.de/record/642192},
}