6 Ağustos 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

JSON-LD (schema.org)

{
  "@context": "https://schema.org/", 
  "@id": 274831, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2024-08-06", 
  "description": "<p>We search for the diphoton decay of a light pseudoscalar axionlike particle, $a$, in radiative $J/\\psi $ decays, using ${10}^{10}\\text{}J/\\psi $ events collected with the BESIII detector. We find no evidence of a signal and set upper limits at the 95% confidence level on the product branching fraction $B\\left(J/\\psi \\to \\gamma a\\right)\u00d7B\\left(a\\to \\gamma \\gamma \\right)$ and the axionlike particle photon coupling constant ${g}_{a\\gamma \\gamma }$ in the ranges of $\\left(3.7\u201348.5\\right)\u00d7{10}^{-8}$ and $\\left(2.2\u2013101.8\\right)\u00d7{10}^{-4}\\text{}\\text{}{\\mathrm{GeV}}^{-1}$, respectively, for $0.18\\le {m}_{a}\\le 2.85\\text{}\\text{}\\mathrm{GeV}/{c}^{2}$. These are the most stringent limits to date in this mass region.</p>", 
  "headline": "Search for diphoton decays of an axionlike particle in radiative $J/\\psi $ decays", 
  "identifier": 274831, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Search for diphoton decays of an axionlike particle in radiative $J/\\psi $ decays", 
  "url": "https://aperta.ulakbim.gov.tr/record/274831"
}