{
  "_oai": {
    "updated": "2022-03-04T10:37:28Z", 
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  "authors": [
    {
      "raw_name": "Yi-Chao Fu", 
      "affiliations": [
        {
          "country": "China", 
          "value": "School of Physics, Sun Yat-Sen University, Guangzhou 510275, China"
        }
      ], 
      "surname": "Fu", 
      "given_names": "Yi-Chao", 
      "full_name": "Fu, Yi-Chao"
    }, 
    {
      "raw_name": "Zhuo-Ran Huang", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China"
        }
      ], 
      "surname": "Huang", 
      "given_names": "Zhuo-Ran", 
      "full_name": "Huang, Zhuo-Ran"
    }, 
    {
      "raw_name": "Zhu-Feng Zhang", 
      "affiliations": [
        {
          "country": "China", 
          "value": "Physics Department, Ningbo University, Ningbo, 315211, China"
        }
      ], 
      "surname": "Zhang", 
      "given_names": "Zhu-Feng", 
      "full_name": "Zhang, Zhu-Feng"
    }, 
    {
      "raw_name": "Wei Chen", 
      "affiliations": [
        {
          "country": "China", 
          "value": "School of Physics, Sun Yat-Sen University, Guangzhou 510275, China"
        }
      ], 
      "surname": "Chen", 
      "given_names": "Wei", 
      "full_name": "Chen, Wei"
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Exotic tetraquark states with <math><msup><mi>J</mi><mrow><mi>P</mi><mi>C</mi></mrow></msup><mo>=</mo><msup><mn>0</mn><mrow><mo>+</mo><mo>\u2212</mo></mrow></msup></math>"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevD.99.014025"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "99", 
      "journal_title": "Physical Review D", 
      "material": "article", 
      "journal_issue": "1", 
      "year": 2019
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2020-06-29T15:35:27.527034", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "bca49440b8c511eaad8602163e01809a"
  }, 
  "page_nr": [
    10
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2019"
    }
  ], 
  "control_number": "45008", 
  "record_creation_date": "2019-01-16T15:45:06.322641", 
  "_files": [
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      "version_id": "afc4526f-9104-4702-878d-aa849de8a85e", 
      "key": "10.1103/PhysRevD.99.014025.pdf", 
      "size": 423628
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  ], 
  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
    }, 
    {
      "primary": "Published"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph", 
        "hep-ex", 
        "hep-lat"
      ], 
      "value": "1811.03333"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "We use the Laplace/Borel sum rules (LSR) and the finite energy/local duality sum rules (FESR) to investigate the nonstrange <math><mi>u</mi><mi>d</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>d</mi><mo>\u00af</mo></mover></math> and hidden-strange <math><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></math> tetraquark states with exotic quantum numbers <math><msup><mi>J</mi><mrow><mi>P</mi><mi>C</mi></mrow></msup><mo>=</mo><msup><mn>0</mn><mrow><mo>+</mo><mo>\u2212</mo></mrow></msup></math>. We systematically construct all eight possible tetraquark currents in this channel without a covariant derivative operator. Our analyses show that the <math><mi>u</mi><mi>d</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>d</mi><mo>\u00af</mo></mover></math> systems have good behavior of sum rule stability and expansion series convergence in both the LSR and FESR analyses, while the LSR for the <math><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></math> states do not associate with convergent OPE series in the stability regions and only the FESR can provide valid results. We give the mass predictions <math><mn>1.43</mn><mo>\u00b1</mo><mn>0.09</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> and <math><mn>1.54</mn><mo>\u00b1</mo><mn>0.12</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></math> for the <math><mi>u</mi><mi>d</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>d</mi><mo>\u00af</mo></mover></math> and <math><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></math> tetraquark states, respectively. Our results indicate that the <math><msup><mn>0</mn><mrow><mo>+</mo><mo>\u2212</mo></mrow></msup></math> isovector <math><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></math> tetraquark may only decay via weak interaction mechanism, e.g., <math><msub><mi>X</mi><mrow><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></mrow></msub><mo>\u2192</mo><mi>K</mi><mi>\u03c0</mi><mi>\u03c0</mi></math>, since its strong decays are forbidden by kinematics and the symmetry constraints on the exotic quantum numbers. It is predicted to be very narrow, if it does exist. The <math><msup><mn>0</mn><mrow><mo>+</mo><mo>\u2212</mo></mrow></msup></math> isoscalar <math><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></math> tetraquark is also predicted to be not very wide because its dominate decay mode <math><msub><mi>X</mi><mrow><mi>u</mi><mi>s</mi><mover><mi>u</mi><mo>\u00af</mo></mover><mover><mi>s</mi><mo>\u00af</mo></mover></mrow></msub><mo>\u2192</mo><mi>\u03d5</mi><mi>\u03c0</mi><mi>\u03c0</mi></math> is in <math><mi>P</mi></math> wave."
    }
  ], 
  "imprints": [
    {
      "date": "2019-01-16", 
      "publisher": "APS"
    }
  ]
}