10 Ocak 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

Citation Style Language JSON

{
  "DOI": "10.1140/epjc/s10052-023-12258-4", 
  "abstract": "<p>The strange quark content of the proton is probed through the measurement of the production cross section for a W boson and a charm (c) quark in proton\u2013proton collisions at a center-of-mass energy of 13    $\\phantom{\\rule{0.166667em}{0ex}}\\text{Te}\\phantom{\\rule{-0.80002pt}{0ex}}\\text{V}$  . The analysis uses a data sample corresponding to a total integrated luminosity of 138    $\\phantom{\\rule{0.166667em}{0ex}}{\\text{fb}}^{-1}$   collected with the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm jets are tagged using the presence of a muon or a secondary vertex inside the jet. The     $\\text{W}+\\text{c}$   production cross section and the cross section ratio     ${R}_{\\text{c}}^{\u00b1}=\\sigma \\left({\\text{W}}^{+}+\\overline{\\text{c}}\\right)/\\sigma \\left({\\text{W}}^{-}+\\text{c}\\right)$   are measured inclusively and differentially as functions of the transverse momentum and the pseudorapidity of the lepton originating from the W boson decay. The precision of the measurements is improved with respect to previous studies, reaching 1% in     ${R}_{\\text{c}}^{\u00b1}=0.950\u00b10.005\\phantom{\\rule{0.166667em}{0ex}}\\text{(stat)}\u00b10.010\\phantom{\\rule{0.166667em}{0ex}}\\text{(syst)}$  . The measurements are compared with theoretical predictions up to next-to-next-to-leading order in perturbative quantum chromodynamics.</p>", 
  "author": [
    {
      "family": "CERN \u0130\u015fbirli\u011fi"
    }
  ], 
  "container_title": "European Physical Journal C", 
  "id": "275341", 
  "issue": "1", 
  "issued": {
    "date-parts": [
      [
        2024, 
        1, 
        10
      ]
    ]
  }, 
  "title": "Measurement of the production cross section for a W boson in association with a charm quark in proton\u2013proton collisions at     $\\sqrt{s}=13\\phantom{\\rule{0.166667em}{0ex}}\\text{TeV}$", 
  "type": "article-journal", 
  "volume": "84"
}