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Now showing items 11-20 of 1024
Measurement of the Λ[superscript 0][subscript b] Lifetime in Λ[superscript 0][subscript b] → Λ[superscript +][subscript c]π[subscript −] Decays in p[¯ over p] Collisions at √s = 1.96 TeV
(American Physical Society (APS), 2010-03)
We report a measurement of the lifetime of the Λ[superscript 0][subscript b] baryon in decays to the Λ[superscript +][superscript c]π[superscript −] final state in a sample corresponding to 1.1 fb[superscript −1] collected ...
Search for electroweak production of charginos and neutralinos in multilepton final states in proton-proton collisions at √s = 13 TeV
(Springer International Publishing AG, 2018-03)
Results are presented from a search for the direct electroweak production of charginos and neutralinos in signatures with either two or more leptons (electrons or muons) of the same electric charge, or with three or more ...
Search for Physics Beyond the Standard Model in Events with Two Leptons of Same Sign, Missing Transverse Momentum, and Jets in Proton–proton Collisions at √s = 13
(Springer-Verlag, 2017-07)
A data sample of events from proton–proton collisions with two isolated same-sign leptons, missing transverse momentum, and jets is studied in a search for signatures of new physics phenomena by the CMS Collaboration at ...
Measurements of tt¯ spin correlations and top quark polarization using dilepton final states in pp collisions at s√=8 TeV
(American Physical Society, 2016-03)
Measurements of the top quark-antiquark (t¯t) spin correlations and the top quark polarization are presented for t¯t pairs produced in pp collisions at √s=8 TeV. The data correspond to an integrated luminosity of 19.5 fb⁻¹ ...
File-based data flow in the CMS Filter Farm
(IOP Publishing, 2015-12)
During the LHC Long Shutdown 1, the CMS Data Acquisition system underwent a partial redesign to replace obsolete network equipment, use more homogeneous switching technologies, and prepare the ground for future upgrades ...
Direct Measurement of the W Production Charge Asymmetry in p(p)over-bar Collisions at root s = 1.96 TeV
(American Physical Society, 2009-03)
We present the first direct measurement of the W production charge asymmetry as a function of the W boson rapidity yW in p(p)over-bar collisions at √s=1.96 TeV. We use a sample of W→eν events in data from 1 fb[superscript ...
Search for Exclusive Z-Boson Production and Observation of High-Mass pp-bar-->p gamma gamma p-bar-->pl+l-p-bar Events in pp-bar Collisions at s=1.96 TeV
(American Physical Society, 2009-06)
This Letter presents a search for exclusive Z boson production in proton-antiproton collisions at √s=1.96 TeV, using the CDF II detector. No exclusive Z→l+l- candidates are observed and the first upper limit on the exclusive ...
Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV
(Springer Berlin Heidelberg, 2018-06)
The nuclear modification factors of J/ψ and ψ (2S) mesons are measured in PbPb collisions at a centre-of-mass energy per nucleon pair of √s[subscript NN] = 5.02 TeV. The analysis is based on PbPb
and pp data samples ...
Event Shapes and Azimuthal Correlations in Z+jets Events in Pp Collisions at √S=7 TeV
(Elsevier BV, 2013-05)
Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC ...
Measurement of the forward–backward asymmetry of top-quark and antiquark pairs using the full CDF Run II data set
(American Physical Society, 2016-06)
We measure the forward–backward asymmetry of the production of top-quark and antiquark pairs in proton-antiproton collisions at center-of-mass energy √s = 1.96 TeV using the full data set collected by the Collider Detector ...