1 Ocak 2018 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1103/PhysRevLett.120.202007", 
  "abstract": "<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>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "Physical Review Letters", 
  "id": "106753", 
  "issue": "20", 
  "issued": {
    "date-parts": [
      [
        2018, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Search for a Structure in the ${B}_{s}^{0}{\\pi }^{\u00b1}$ Invariant Mass Spectrum with the ATLAS Experiment", 
  "type": "article-journal", 
  "volume": "120"
}