Now showing items 21-25 of 25
Measurement of the ratio B(t→Wb)/B(t→Wq) in pp collisions at √s=8 TeV
The ratio of the top-quark branching fractions R = B(t → Wb)/B(t → Wq), where the denominator includes the sum over all down-type quarks (q = b, s, d), is measured in the tt dilepton ¯ final state with proton–proton ...
Observation of a peaking structure in the J/ψφ mass spectrum from B±→J/ψφK± decays
A peaking structure in the J/ψφ mass spectrum near threshold is observed in B± → J/ψφK± decays, produced in pp collisions at √s = 7 TeV collected with the CMS detector at the LHC. The data sample, selected on the basis ...
Study of double parton scattering using W + 2-jet events in proton-proton collisions at √s = 7 TeV
Double parton scattering is investigated in proton-proton collisions at √s = 7 TeV where the final state includes a W boson, which decays into a muon and a neutrino, and two jets. The data sample corresponds to an integrated ...
Measurements of the tt̄ charge asymmetry using the dilepton decay channel in pp collisions at √s = 7 TeV
The tt̄ charge asymmetry in proton-proton collisions at √s = 7 TeV is measured using the dilepton decay channel (ee, eμ, or μμ). The data correspond to a total integrated luminosity of 5.0 fb−1, collected by the CMS ...
Measurement of the production cross section for a W boson and two b jets in pp collisions at √s=7 TeV
The production cross section for a W boson and two b jets is measured using proton–proton collisions at √s = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity ...