1 Ocak 2015 Dergi makalesi Açık Erişim

CERN İşbirliği

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    <subfield code="a">&lt;p&gt;A search for new charged massive gauge bosons, called ${W}^{\prime }$, is performed with the ATLAS detector at the LHC, in proton–proton collisions at a centre-of-mass energy of $\sqrt{s}=8\text{}\text{TeV}$, using a dataset corresponding to an integrated luminosity of $20.3{\text{fb}}^{-1}$. This analysis searches for ${W}^{\prime }$ bosons in the ${W}^{\prime }\to t\overline{b}$ decay channel in final states with electrons or muons, using a multivariate method based on boosted decision trees. The search covers masses between 0.5 and 3.0 TeV, for right-handed or left-handed ${W}^{\prime }$ bosons. No significant deviation from the Standard Model expectation is observed and limits are set on the ${W}^{\prime }\to t\overline{b}$ cross-section times branching ratio and on the ${W}^{\prime }$-boson effective couplings as a function of the ${W}^{\prime }$-boson mass using the ${\mathrm{CL}}_{s}$ procedure. For a left-handed (right-handed) ${W}^{\prime }$ boson, masses below 1.70 (1.92) TeV are excluded at 95% confidence level.&lt;/p&gt;</subfield>
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    <subfield code="a">Search for In the Lepton Plus Jets Final State in Proton–proton Collisions at a Centre-of-mass Energy of with the ATLAS detector</subfield>
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