Now showing items 81-87 of 87
Measurement of prompt ψ (2S) to J /ψ yield ratios in Pb-Pb and p - p collisions at sNN =2.76 TeV
(American Physical Society, 2014-12-31)
The ratio between the prompt ψ(2S) and J/ψ yields, reconstructed via their decays into μ+μ−, is measured in Pb-Pb and p-p collisions at sNN−−−−√=2.76 TeV. The analysis is based on Pb-Pb and p-p data samples collected by ...
Measurement of the tt production cross section in pp collisions at √s=8 TeV in dilepton final states containing one τ lepton
The top-quark pair production cross section is measured in final states with one electron or muon and one hadronically decaying τ lepton from the process View the MathML source, where ℓ=e,μ. The data sample corresponds ...
Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at root s=8 TeV
(Springer International Publishing, 2014)
A measurement of the cross section for the production of top quark-antiquark pairs (t (t) over bar) in association with a vector boson V (W or Z) in proton-proton collisions at root s = 8 TeV is presented. The results are ...
Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
(Springer International Publishing, 2014-11)
A search is presented for standard model (SM) production of four top quarks (tt¯tt¯)(tt¯tt¯) in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb−1 recorded at a ...
Alignment of the CMS tracker with LHC and cosmic ray data
(IOP Publishing, 2014-06)
Results are reported from a search for supersymmetry in pp collisions at a center-of-mass energy of 8 TeV, based on events with a single isolated lepton (electron or muon) and multiple jets, at least two of which are ...
Top-quark forward-backward asymmetry from a color-octet t-channel resonance
(American Physical Society, 2014-05-09)
We consider new physics contributions to the top-quark forward-backward asymmetry from a neutral V-8(0) or charged V-8(+) color-octet vector exchanged in the t channel. We study the phenomenological constraints on these ...
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