{
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  "authors": [
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      "affiliations": [
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          "country": "Taiwan", 
          "value": "Department of Physics and Center for High Energy Physics, Chung Yuan Christian University, 200 Chung Pei Road, Taoyuan, 32023, Taiwan", 
          "organization": "Chung Yuan Christian University"
        }
      ], 
      "surname": "Yang", 
      "email": "kcyang@cycu.edu.tw", 
      "full_name": "Yang, Kwei-Chou", 
      "given_names": "Kwei-Chou"
    }
  ], 
  "titles": [
    {
      "source": "Springer", 
      "title": "Self-interacting forbidden dark matter under a cannibally co-decaying phase"
    }
  ], 
  "dois": [
    {
      "value": "10.1007/JHEP06(2024)005"
    }
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      "page_end": "26", 
      "journal_title": "Journal of High Energy Physics", 
      "material": "article", 
      "journal_volume": "2024", 
      "artid": "JHEP06(2024)005", 
      "year": 2024, 
      "page_start": "1", 
      "journal_issue": "6"
    }
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    "submission_number": "3335a32a23ce11ef9fecbe60ec5a7b90"
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  "page_nr": [
    26
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      "url": "https://creativecommons.org/licenses//by/4.0", 
      "license": "CC-BY-4.0"
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  "copyright": [
    {
      "holder": "The Author(s)", 
      "year": "2024"
    }
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  "control_number": "86051", 
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      "primary": "Journal of High Energy Physics"
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        "astro-ph.CO", 
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      "value": "2306.17037"
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  ], 
  "abstracts": [
    {
      "source": "Springer", 
      "value": "In a usual dark matter (DM) model without a huge mass difference between the DM and lighter mediator, using the coupling strength suitable for having the correct relic density, the resulting self-interaction becomes several orders of magnitude smaller than that required to interpret the small-scale structures. We present a framework that can offer a solution for this point. We consider a model that contains the vector DM and a heavier but unstable Higgs-like scalar in the hidden sector. When the temperature drops below ~ m DM, the hidden sector, which is thermally decoupled from the visible sector, enters a cannibal phase, during which the DM density is depleted with the out-of-equilibrium decay of the scalar. The favored parameter region, giving the correct relic density and the proper size of self-interactions, shows the scalar-to-DM mass ratio \u2208 [1.1, 1.33] and the scalar mass \u2208 [9, 114] MeV. A sizable parameter space still survives the most current constraints and can be further probed by the near future NA62 beam dump experiment."
    }
  ], 
  "imprints": [
    {
      "date": "2024-06-04", 
      "publisher": "Springer"
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}