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  "authors": [
    {
      "raw_name": "Nicol\u00e1s Bernal", 
      "affiliations": [
        {
          "country": "United Arab Emirates", 
          "value": "New York University Abu Dhabi, P.O. Box 129188, Saadiyat Island, Abu Dhabi, United Arab Emirates"
        }
      ], 
      "surname": "Bernal", 
      "given_names": "Nicol\u00e1s", 
      "full_name": "Bernal, Nicol\u00e1s"
    }, 
    {
      "raw_name": "Partha Konar", 
      "affiliations": [
        {
          "country": "India", 
          "value": "Physical Research Laboratory, Ahmedabad 380009, Gujarat, India"
        }
      ], 
      "surname": "Konar", 
      "given_names": "Partha", 
      "full_name": "Konar, Partha"
    }, 
    {
      "raw_name": "Sudipta Show", 
      "affiliations": [
        {
          "country": "India", 
          "value": "Physical Research Laboratory, Ahmedabad 380009, Gujarat, India"
        }
      ], 
      "surname": "Show", 
      "given_names": "Sudipta", 
      "full_name": "Show, Sudipta"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Unitarity bound on dark matter in low-temperature reheating scenarios"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.109.035018"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "109", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "3", 
      "year": 2024
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
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    "submission_number": "d80f401ed2ab11eea49c8e4864f4776e"
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  "page_nr": [
    16
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  "license": [
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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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      "primary": "HEP"
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  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph"
      ], 
      "value": "2311.01587"
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  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "The model-independent theoretical upper bound on the thermal dark matter (DM) mass can be derived from the maximum inelastic DM cross section featuring the whole observed DM abundance. We deploy partial-wave unitarity of the scattering matrix to derive the maximal thermally averaged cross section for general number-changing processes <math><mi>r</mi><mo>\u2192</mo><mn>2</mn></math> (with <math><mi>r</mi><mo>\u2265</mo><mn>2</mn></math>), which may involve standard model particles or occur solely within the dark sector. The usual upper limit on the DM mass for <math><mi>s</mi></math>-wave annihilation is around 130 TeV (1 GeV) for <math><mi>r</mi><mo>=</mo><mn>2</mn></math> (3) and only applies in the case of a freeze-out occurring in the standard cosmological scenario. We consider the effects of two nonstandard cosmological evolutions, characterized by low-temperature reheating: (i) a kinationlike scenario and (ii) an early matter-dominated scenario. In the first case, early freeze-out strengthens the unitarity bound to a few TeVs for weakly interacting massive particles (WIMPs); while in the second case, the WIMP DM can be as heavy as <math><mo>\u223c</mo><msup><mn>10</mn><mn>10</mn></msup><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> due to a large entropy dilution."
    }
  ], 
  "imprints": [
    {
      "date": "2024-02-23", 
      "publisher": "APS"
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}