513 research outputs found

    Degeneracy resolution capabilities of NOν\nuA and DUNE in the presence of light sterile neutrino

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    We investigate the implications of a sterile neutrino on the physics potential of the proposed experiment DUNE and future runs of NOν\nuA using latest NOν\nuA results. Using combined analysis of the disappearance and appearance data, NOν\nuA reported preferred solutions at normal hierarchy (NH) with two degenerate best-fit points one in the lower octant (LO) and δ13\delta_{13} = 1.48π\pi and other in higher octant (HO) and δ13\delta_{13} = 0.74π\pi. Another solution of inverted hierarchy (IH) which is 0.46σ\sigma away from best fit was also reported. We discuss chances of resolving these degeneracies in the presence of sterile neutrino.Comment: 16 pages 5 figures,Updated for the journa

    Observation of tW production in the single-lepton channel in pp collisions at root s=13 TeV

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    A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at root s = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb(-1) collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant t (t) over bar background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 +/- 4 (stat) +/- 12 (syst) pb, consistent with the standard model.Peer reviewe

    Measurement of the double-differential inclusive jet cross section in proton-proton collisions at s\sqrt{s} = 5.02 TeV