1,807 research outputs found

    Search for top squark pair production in pp collisions at root s=13 TeV using single lepton events

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    Search for narrow resonances in dilepton mass spectra in proton-proton collisions at root s=13 TeV and combination with 8 TeV data

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    Search for supersymmetry in events with photons and missing transverse energy in pp collisions at 13 TeV

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    Search for heavy gauge W ' bosons in events with an energetic lepton and large missing transverse momentum at root s=13TeV

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    Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at root s=7 and 8 TeV

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    Search for massive resonances decaying in to WW,WZ or ZZ bosons in proton-proton collisions at root s=13 TeV

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    Measurement of the production cross section of a W boson in association with two b jets in pp collisions at root s=8TeV

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    Search for leptophobic Z ' bosons decaying into four-lepton final states in proton-proton collisions at root s=8 TeV

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    Measurements of properties of the Higgs boson decaying into the four-lepton final state in pp collisions at s=13 \sqrt{s}=13 TeV

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    Measurement of the jet mass in highly boosted ttt\overline{t} events from pp collisions at √s=8TeV

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    The first measurement of the jet mass m jet of top quark jets produced in tt ¯ events from pp collisions at s √s =8 TeV is reported for the jet with the largest transverse momentum p T in highly boosted hadronic top quark decays. The data sample, collected with the CMS detector, corresponds to an integrated luminosity of 19.7fb −1. The measurement is performed in the lepton+jets channel in which the products of the semileptonic decay t→bW with W→ℓν where ℓ is an electron or muon, are used to select tt ¯ events with large Lorentz boosts. The products of the fully hadronic decay t→bW with W→qq ¯′ are reconstructed using a single Cambridge–Aachen jet with distance parameter R=1.2 and p T >400 GeV. The tt ¯ cross section as a function of m jet is unfolded at the particle level and is used to test the modelling of highly boosted top quark production. The peak position of the m jet distribution is sensitive to the top quark mass m t mt, and the data are used to extract a value of m t to assess this sensitivity
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