{
  "_oai": {
    "updated": "2023-06-06T03:32:21Z", 
    "id": "oai:repo.scoap3.org:76145", 
    "sets": [
      "CPC"
    ]
  }, 
  "authors": [
    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Interdisciplinary Center for Theoretical Study, University of Science and Technology of China, China"
        }, 
        {
          "country": "China", 
          "value": "Peng Huanwu Center for Fundamental Theory, China"
        }
      ], 
      "surname": "Gao", 
      "email": "gaodn@ustc.edu.cn", 
      "full_name": "Gao,Dao-Neng", 
      "given_names": "Dao-Neng"
    }, 
    {
      "affiliations": [
        {
          "country": "China", 
          "value": "Interdisciplinary Center for Theoretical Study, University of Science and Technology of China, China"
        }, 
        {
          "country": "China", 
          "value": "Peng Huanwu Center for Fundamental Theory, China"
        }
      ], 
      "surname": "Gong", 
      "email": "gonff@mail.ustc.edu.cn", 
      "full_name": "Gong,Xi", 
      "given_names": "Xi"
    }
  ], 
  "titles": [
    {
      "source": "IOP", 
      "title": "Note on rare -boson Decays to Double Heavy Quarkonia  "
    }
  ], 
  "dois": [
    {
      "value": "10.1088/1674-1137/acb7d1"
    }
  ], 
  "publication_info": [
    {
      "journal_title": "Chinese Physics C", 
      "material": "article", 
      "journal_volume": "47", 
      "artid": "043106", 
      "year": 2023, 
      "journal_issue": "4"
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2023-06-06T03:30:59.752805", 
    "source": "IOP", 
    "method": "IOP", 
    "submission_number": "6ab8f560041a11ee8e62c23b20d38f61"
  }, 
  "page_nr": [
    5
  ], 
  "license": [
    {
      "url": "http://creativecommons.org/licenses/by/3.0/", 
      "license": "CC-BY-3.0"
    }
  ], 
  "copyright": [
    {
      "statement": "\u00a9 2023 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd", 
      "year": "2023"
    }
  ], 
  "control_number": "76145", 
  "record_creation_date": "2023-03-02T03:30:24.601773", 
  "_files": [
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      "checksum": "md5:018a29224befc11203c064a3771de9ce", 
      "filetype": "xml", 
      "bucket": "8dfab769-5c24-41fe-adff-56282aea12ae", 
      "version_id": "104d64ff-0804-47e7-b59d-f673bb7e48a0", 
      "key": "10.1088/1674-1137/acb7d1.xml", 
      "size": 84845
    }, 
    {
      "checksum": "md5:1b1efd720186f43162d30a445170c05b", 
      "filetype": "pdf", 
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      "version_id": "99eccbee-88aa-4687-ac14-2d1676313fef", 
      "key": "10.1088/1674-1137/acb7d1.pdf", 
      "size": 567106
    }
  ], 
  "collections": [
    {
      "primary": "Chinese Physics C"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ph", 
        "hep-ex"
      ], 
      "value": "2208.12652"
    }
  ], 
  "abstracts": [
    {
      "source": "IOP", 
      "value": "Within the standard model, we have investigated rare Z-boson decays into double heavy quarkonia,   $ Z\\to VV $   and   $ Z\\to VV $  , with V and P denoting vector and pseudoscalar quarkonia, respectively. It is assumed that the leading-order QCD diagrams would give the dominant contributions to these processes, and the corresponding branching fractions, for instance,   $ Z\\to VV $  , have been estimated to be approximately  $ Z\\to VV $   in literature. However, these decays could also happen through electromagnetic transitions   $ Z\\to VV $   and   $ Z\\to VV $  , with the virtual photon transforming into V. Interestingly, the smallness of the vector quarkonium mass can give rise to a large factor   $ Z\\to VV $   relative to the QCD contributions, which thus counteracts the suppression from the electromagnetic coupling. We systematically include these two types of contributions in our calculation to predict branching fractions for these decays. Particularly, owing to the virtual photon effects, it is found that   $ Z\\to VV $   will be significantly enhanced, up to   $ Z\\to VV $  ."
    }
  ], 
  "imprints": [
    {
      "date": "2023-04-01", 
      "publisher": "IOP"
    }
  ]
}