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  "authors": [
    {
      "raw_name": "Shinya Kanemura", 
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan"
        }
      ], 
      "surname": "Kanemura", 
      "given_names": "Shinya", 
      "full_name": "Kanemura, Shinya"
    }, 
    {
      "raw_name": "Kento Katayama", 
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan"
        }
      ], 
      "surname": "Katayama", 
      "given_names": "Kento", 
      "full_name": "Katayama, Kento"
    }, 
    {
      "raw_name": "Tanmoy Mondal", 
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan"
        }, 
        {
          "country": "India", 
          "value": "Birla Institute of Technology and Science, Pilani, 333031, Rajasthan, India"
        }
      ], 
      "surname": "Mondal", 
      "given_names": "Tanmoy", 
      "full_name": "Mondal, Tanmoy"
    }, 
    {
      "raw_name": "Kei Yagyu", 
      "affiliations": [
        {
          "country": "Japan", 
          "value": "Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan"
        }
      ], 
      "surname": "Yagyu", 
      "given_names": "Kei", 
      "full_name": "Yagyu, Kei"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Multiphoton signatures as a probe of <math><mi>C</mi><mi>P</mi></math> violation in extended Higgs sectors"
    }
  ], 
  "dois": [
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      "value": "10.1103/PhysRevD.109.033002"
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      "journal_volume": "109", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "3", 
      "year": 2024
    }
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    7
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      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2024"
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  "control_number": "83196", 
  "record_creation_date": "2024-02-05T16:30:07.254895", 
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      "value": "2308.01772"
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  "abstracts": [
    {
      "source": "APS", 
      "value": "We propose a novel signature with four-photon final states to probe <math><mi>C</mi><mi>P</mi></math>-violating (CPV) extended Higgs sectors via <math><mrow><mi>f</mi><mover><mrow><mi>f</mi></mrow><mrow><mo>\u00af</mo></mrow></mover><mo>\u2192</mo><msup><mrow><mi>Z</mi></mrow><mrow><mo>*</mo></mrow></msup><mo>\u2192</mo><msub><mrow><mi>H</mi></mrow><mrow><mn>1</mn></mrow></msub><msub><mrow><mi>H</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>\u2192</mo><mn>4</mn><mi>\u03b3</mi></mrow></math> processes with <math><msub><mi>H</mi><mrow><mn>1</mn><mo>,</mo><mn>2</mn></mrow></msub></math> being additional neutral Higgs bosons. We focus on the nearly Higgs alignment scenario, in which the discovered Higgs boson almost corresponds to a neutral scalar state belonging to the isospin doublet field with the vacuum expectation value <math><mrow><mi>v</mi><mo>\u2243</mo><mn>246</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></mrow></math>. We show that the branching ratios of <math><msub><mi>H</mi><mrow><mn>1</mn><mo>,</mo><mn>2</mn></mrow></msub><mo>\u2192</mo><mi>\u03b3</mi><mi>\u03b3</mi></math> can simultaneously be sizable when CPV phases in the Higgs potential are of order one due to the enhancement of charged-Higgs boson loops. Such branching ratios can be especially significant when the fermiophobic scenario is taken into account. As a simple example, we consider the general two Higgs doublet model, and demonstrate that the cross section for the four-photon process can be 0.1 fb at LHC with the masses of <math><msub><mi>H</mi><mrow><mn>1</mn><mo>,</mo><mn>2</mn></mrow></msub></math> to be a few 100 GeV in the Higgs alignment limit under the constraints from electric dipole moments (EDMs) and LHC Run-II data. We also illustrate that the searches for EDMs and diphoton resonances at high-luminosity LHC play complementary roles to explore CPV extended Higgs sectors."
    }
  ], 
  "imprints": [
    {
      "date": "2024-02-05", 
      "publisher": "APS"
    }
  ]
}