1 Ocak 2018 Dergi makalesi Açık Erişim

CERN İşbirliği

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{
  "@context": "https://schema.org/", 
  "@id": 106753, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "CERN", 
      "name": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "datePublished": "2018-01-01", 
  "description": "<p>A search for the narrow structure, $X\\left(5568\\right)$, reported by the D0 Collaboration in the decay sequence $X\\to {B}_{s}^{0}{\\pi }^{\u00b1}$, ${B}_{s}^{0}\\to J/\\psi \\varphi $, is presented. The analysis is based on a data sample recorded with the ATLAS detector at the LHC corresponding to $4.9\\text{}\\text{}{\\mathrm{fb}}^{-1}$ of $pp$ collisions at 7 TeV and $19.5\\text{}\\text{}{\\mathrm{fb}}^{-1}$ at 8 TeV. No significant signal was found. Upper limits on the number of signal events, with properties corresponding to those reported by D0, and on the $X$ production rate relative to ${B}_{s}^{0}$ mesons, ${\\rho }_{X}$, were determined at 95% confidence level. The results are $N\\left(X\\right)&lt;382$ and ${\\rho }_{X}&lt;0.015$ for ${B}_{s}^{0}$ mesons with transverse momenta above 10 GeV, and $N\\left(X\\right)&lt;356$ and ${\\rho }_{X}&lt;0.016$ for transverse momenta above 15 GeV. Limits are also set for potential ${B}_{s}^{0}{\\pi }^{\u00b1}$ resonances in the mass range 5550 to 5700 MeV.</p>", 
  "headline": "Search for a Structure in the ${B}_{s}^{0}{\\pi }^{\u00b1}$ Invariant Mass Spectrum with the ATLAS Experiment", 
  "identifier": 106753, 
  "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 a Structure in the ${B}_{s}^{0}{\\pi }^{\u00b1}$ Invariant Mass Spectrum with the ATLAS Experiment", 
  "url": "https://aperta.ulakbim.gov.tr/record/106753"
}