{
  "_oai": {
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  "authors": [
    {
      "raw_name": "Yuheng Wu", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Yancheng Institute of Technology, Yancheng 224000, P. R. China"
        }
      ], 
      "surname": "Wu", 
      "given_names": "Yuheng", 
      "full_name": "Wu, Yuheng"
    }, 
    {
      "raw_name": "Ye Yan", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Nanjing Normal University, Nanjing, Jiangsu 210097, P. R. China"
        }
      ], 
      "surname": "Yan", 
      "given_names": "Ye", 
      "full_name": "Yan, Ye"
    }, 
    {
      "raw_name": "Yue Tan", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Yancheng Institute of Technology, Yancheng 224000, P. R. China"
        }
      ], 
      "surname": "Tan", 
      "given_names": "Yue", 
      "full_name": "Tan, Yue"
    }, 
    {
      "raw_name": "Hongxia Huang", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Nanjing Normal University, Nanjing, Jiangsu 210097, P. R. China"
        }
      ], 
      "surname": "Huang", 
      "given_names": "Hongxia", 
      "full_name": "Huang, Hongxia"
    }, 
    {
      "raw_name": "Jialun Ping", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Nanjing Normal University, Nanjing, Jiangsu 210097, P. R. China"
        }
      ], 
      "surname": "Ping", 
      "given_names": "Jialun", 
      "full_name": "Ping, Jialun"
    }, 
    {
      "raw_name": "Xinmei Zhu", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Department of Physics, Yangzhou University, Yangzhou 225009, P. R. China"
        }
      ], 
      "surname": "Zhu", 
      "given_names": "Xinmei", 
      "full_name": "Zhu, Xinmei"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Exotic <math><mi>Q</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> states in the chiral quark model"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.109.096005"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "109", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "9", 
      "year": 2024
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2024-05-22T22:30:06.817468", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "d34862d4188a11efa96f6a3e651b8b98"
  }, 
  "page_nr": [
    14
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2024"
    }
  ], 
  "control_number": "85151", 
  "record_creation_date": "2024-05-06T14:30:28.646635", 
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  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
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    {
      "primary": "Published"
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  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph"
      ], 
      "value": "2311.12638"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "In the framework of the chiral quark model, we investigate the <math><mi>Q</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> (<math><mrow><mi>Q</mi><mo>=</mo><mi>c</mi></mrow></math>, <math><mrow><mi>b</mi></mrow></math> and <math><mrow><mi>q</mi><mo>=</mo><mi>u</mi></mrow></math>, <math><mrow><mi>d</mi></mrow></math>) tetraquark system with two structures: <math><mrow><mi>Q</mi><mover><mrow><mi>q</mi></mrow><mrow><mo>\u00af</mo></mrow></mover><mtext>\u2212</mtext><mi>q</mi><mover><mrow><mi>q</mi></mrow><mrow><mo>\u00af</mo></mrow></mover></mrow></math> and <math><mi>Q</mi><mi>q</mi><mtext>\u2212</mtext><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math>. The bound-state calculation shows that for the single channel, there is no evidence for any bound state below the minimum threshold in both <math><mi>c</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> and <math><mi>b</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> systems. However, after coupling all channels of two structures, we obtain a bound state below the minimum threshold in the <math><mi>c</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> system with the energy of 1998 MeV, and the quantum number is <math><mi>I</mi><msup><mi>J</mi><mi>P</mi></msup><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><msup><mn>0</mn><mo>+</mo></msup></math>. Meanwhile, in the <math><mi>b</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> system, two bound states with energies of 5414 MeV and 5456 MeV are obtained, and the quantum numbers are <math><mi>I</mi><msup><mi>J</mi><mi>P</mi></msup><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><msup><mn>0</mn><mo>+</mo></msup></math> and <math><mi>I</mi><msup><mi>J</mi><mi>P</mi></msup><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><msup><mn>1</mn><mo>+</mo></msup></math>, respectively. Besides, we also employ the real-scaling method to search for resonance states in the <math><mi>c</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> and <math><mi>b</mi><mi>q</mi><mover><mi>q</mi><mo>\u00af</mo></mover><mover><mi>q</mi><mo>\u00af</mo></mover></math> systems. Unfortunately, no genuine resonance states were obtained in both systems. We suggest future experiments to search for these three possible bound states."
    }
  ], 
  "imprints": [
    {
      "date": "2024-05-06", 
      "publisher": "APS"
    }
  ]
}