Now showing items 24520-24579 of 54343

• #### Measurement of the mass difference between top and antitop quarks ﻿

(2012)
A measurement of the mass difference between the top and the antitop quark (Δm t = m t − mt¯) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data ...
• #### Measurement of the muon charge asymmetry in inclusive pp→W+X production at √s=7  TeV and an improved determination of light parton distribution functions ﻿

(2014)
Measurements of the muon charge asymmetry in inclusive pp→W+X production at √s=7  TeV are presented. The data sample corresponds to an integrated luminosity of 4.7  fb−1 recorded with the CMS detector at the LHC. With a ...

(1968)
• #### Measurement of the polarization of the muon beam for the SMC experiment ﻿

(1994)
A high energy muon beam polarimeter for the SMC experiment at CERN is described, as is the analysis of the beam polarization. The polarization is determined using the shape of the energy spectrum of the positrons from the ...
• #### MEASUREMENT OF THE PP AND PD TOTAL CROSS SECTIONS IN PURE TRANSVERSE SPIN STATES IN THE 1-3 GEV/C REGION ﻿

(1982)
The total cross section difference for pp and pd scattering in initial spin states transverse to the beam direction was measured at beam momenta of 1.23, 1.38, 1.52, 1.72, 2.00, 2.24, and 2.48 GeV/c. This measurement was ...
• #### Measurement of the pp→ZZ production cross section and constraints on anomalous triple gauge couplings in four-lepton final states at √s=8 TeV ﻿

(2015)
A measurement of the inclusive ZZ production cross section and constraints on anomalous triple gauge couplings in proton–proton collisions at √s=8 TeV are presented. The analysis is based on a data sample, corresponding ...
• #### Measurement of the production cross section for a W boson and two b jets in pp collisions at √s=7 TeV ﻿

(2014)
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 of ...
• #### Measurement of the production cross section for pairs of isolated photons in pp collisions at √s=7TeV ﻿

(2012)
The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7 TeV with the CMS detector at the LHC. A data sample ...
• #### Measurement of the production cross section for Zγ→ν¯νγ in pp collisions at √s=7 TeV and limits on ZZγ and Zγγ triple gauge boson couplings ﻿

(2013)
A measurement of the Zγ→νν¯¯¯γ cross section in pp collisions at √s=7 TeV is presented, using data corresponding to an integrated luminosity of 5.0 fb−1 collected with the CMS detector. This measurement is based on the ...
• #### Measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P))) in pp collisions at √s=8 TeV ﻿

(2015)
A measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) is presented. The χb1(1P) and χb2(1P) bottomonium states, promptly produced in pp collisions at √s=8 TeV, are detected by the CMS experiment at the ...
• #### Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at √s = 7 TeV ﻿

(2014)
The production of a Z boson, decaying into two leptons and produced in association with one or more b jets, is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV. The data were ...
• #### Measurement of the prompt J/ψ and ψ(2S) polarizations in pp collisions at √s=7 TeV ﻿

(2013)
The polarizations of prompt J/ψ and ψ(2S) mesons are measured in proton–proton collisions at √s=7 TeV, using a dimuon data sample collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.9 ...
• #### Measurement of the properties of a Higgs boson in the four-lepton final state ﻿

(2014)
The properties of a Higgs boson candidate are measured in the H→ZZ→4ℓ decay channel, with ℓ=e, μ, using data from pp collisions corresponding to an integrated luminosity of 5.1  fb−1 at the center-of-mass energy of √s=7  TeV ...

(1981)
• #### Measurement of the Pseudorapidity and Centrality Dependence of the Transverse Energy Density in Pb-Pb Collisions at √sNN=2.76  TeV ﻿

(2012)
The transverse energy (ET) in Pb-Pb collisions at 2.76 TeV nucleon-nucleon center-of-mass energy (√sNN) has been measured over a broad range of pseudorapidity (η) and collision centrality by using the CMS detector at the ...
• #### Measurement of the rapidity and transverse momentum distributions of Z bosons in pp collisions at (√s)=7  TeV ﻿

(2012)
Measurements of the normalized rapidity (y) and transverse-momentum (qT) distributions of Drell–Yan muon and electron pairs in the Z-boson mass region (60<Mℓℓ<120  GeV) are reported. The results are obtained using a data ...
• #### Measurement of the ratio B(t→Wb)/B(t→Wq) in pp collisions at √s=8 TeV ﻿

(2014)
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,dq=b,s,d), is measured in the tt dilepton final state with proton–proton collision ...
• #### Measurement of the ratio of inclusive jet cross sections using the anti-kT algorithm with radius parameters R=0.5 and 0.7 in pp collisions at √s=7  TeV ﻿

(2014)
Measurements of the inclusive jet cross section with the anti-kT clustering algorithm are presented for two radius parameters, R=0.5 and 0.7. They are based on data from LHC proton-proton collisions at √s=7  TeV corresponding ...
• #### Measurement of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section in pp collisions at √s=7 TeV and first determination of the strong coupling constant in the TeV range ﻿

(2013)
A measurement is presented of the ratio of the inclusive 3-jet cross section to the inclusive 2-jet cross section as a function of the average transverse momentum, ⟨pT1,2⟩, of the two leading jets in the event. The data ...
• #### Measurement of the ratio of the production cross sections times branching fractions of B ± c→ J/ψπ ± and B± → J/ψK ± and B(B±c→J/ψπ±π±π∓)/B(B±c→J/ψπ±) in pp collisions at s√=7 TeV ﻿

(2015)
The ratio of the production cross sections times branching fractions (σ(B±c)B(B±c→J/ψπ±))/(σ(B±)B(B±→J/ψK±)) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The ...
• #### Measurement of the relative prompt production rate of χ c2 and χ c1 in pp collisions at √s=7 TeV ﻿

(2012)
A measurement is presented of the relative prompt production rate of χ c2 and χ c1 with 4.6 fb−1 of data collected by the CMS experiment at the LHC in pp collisions at √s=7 TeV. The two states are measured via their radiative ...
• #### Measurement of the semileptonic charge asymmetry in B0 meson mixing with the D0 detector ﻿

(2012)
We present a measurement of the semileptonic mixing asymmetry for B0 mesons, ad sl, using two independent decay channels: B0 ! þD X, with D ! Kþ ; and B0 ! þD X, with D ! D0 , D0 ! Kþ (and charge conjugate ...
• #### Measurement of the single-top-quark t -channel cross section in pp collisions at √s=7 TeV ﻿

(2012)
A measurement of the single-top-quark t-channel production cross section in pp collisions at √s=7 TeV with the CMS detector at the LHC is presented. Two different and complementary approaches have been followed. The first ...
• #### Measurement of the sum ofWW and WZ production with W+dijet events in pp collisions at √ s = 7 TeV ﻿

(2013)
A measurement of the inclusive WW+WZ diboson production cross section in proton–proton collisions is reported, based on events containing a leptonically decaying √W boson and exactly two jets. The data sample, collected ...
• #### Measurement of the t-channel single-top-quark production cross section and of the |V tb| CKM matrix element in pp collisions at √s = 8 TeV ﻿

(2014)
Measurements are presented of the t-channel single-top-quark production cross section in proton-proton collisions at √s= 8 TeV. The results are based on a data sample corresponding to an integrated luminosity of 19.7 fb−1 ...
• #### Measurement of the top-quark mass in all-jets tt events in pp collisions at √s=7 TeV ﻿

(2014)
The mass of the top quark is measured using a sample of tt candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at √s=7 TeV in 2011 ...
• #### Measurement of the top-quark mass in t¯t events with dilepton final states in pp collisions at √s=7 TeV ﻿

(2012)
The top-quark mass is measured in proton-proton collisions at √s=7 TeV using a data sample corresponding to an integrated luminosity of 5.0 fb−1 collected by the CMS experiment at the LHC. The measurement is performed in ...
• #### Measurement of the top-quark mass in t¯t events with lepton+jets final states in pp collisions at √s=7 TeV ﻿

(2012)
The mass of the top quark is measured using a sample of tt¯ candidate events with one electron or muon and at least four jets in the final state, collected by CMS in pp collisions at √s=7 TeV at the LHC. A total of 5174 ...
• #### Measurement of the trapping rate constants and product studies of quinone derivative inhibitors with alpha-phenethyl radicals ﻿

(2009)
Polymerization of olefins such as styrene, one of many industrially important monomers, is a troublesome problem during storage, transportation and processing. The problem is attenuated by addition of polymerization ...
• #### Measurement of the trapping rate constants and product studies of quinone derivative inhibitors with phenethyl radicals ﻿

(2007)
Styrene is one of many industrially important monomers. Polymerization of unsaturated monomers such as styrene is a troublesome problem during storage, transportation and processing. The problem is attenuated by addition ...
• #### Measurement of the triple-differential cross section for photon + jets production in proton-proton collisions at √s = 7 TeV ﻿

(2014)
A measurement of the triple-differential cross section, d3σ/(dpγTdηγdηjet) , in photon + jets final states using a data sample from proton-proton collisions at √s = 7 TeV is presented. This sample corresponds to an integrated ...
• #### Measurement of the tt production cross section in the dilepton channel in pp collisions at √s = 8 TeV ﻿

(2014)
The top-antitop quark (tt) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb−1. The ...
• #### Measurement of the tt¯ production cross section in pp collisions at √s=7 TeV with lepton + jets final states ﻿

(2013)
A measurement of the tt¯ production cross section in pp collisions at √s=7 TeV is presented. The results are based on data corresponding to an integrated luminosity of 2.3 fb−1 collected by the CMS detector at the LHC. ...
• #### Measurement of the tt¯ production cross section in pp collisions at √s=7  TeV in dilepton final states containing a τ ﻿

(2012)
The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying τ lepton from the decay tt¯→(ℓνℓ)(τhντ)bb¯, (ℓ=e,μ). The data sample corresponds to an ...
• #### Measurement of the tt¯ production cross section in pp collisions at √s=8 TeV in dilepton final states containing one τ lepton ﻿

(2014)
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 tt¯→(ℓνℓ)(τντ)bb¯, where ℓ=e,μℓ=e,μ. The data sample corresponds ...
• #### Measurement of the tt¯ production cross section in the τ +jets channel in pp collisions at √s=7 TeV ﻿

(2012)
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a ...
• #### Measurement of the t¯t production cross section in the all-jet final state in pp collisions at √s=7 TeV ﻿

(2013)
A measurement is presented of the tt¯ production cross section (σtt¯) in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as ...
• #### Measurement of the t¯t production cross section in the dilepton channel in pp collisions at √s = 8 TeV ﻿

(2014)
The top-antitop quark (tt¯) production cross section is measured in proton-proton collisions at √s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb−1. The ...
• #### Measurement of the underlying event activity in pp collisions at √s=0.9 and 7 TeV with the novel jet-area/median approach ﻿

(2012)
The first measurement of the charged component of the underlying event using the novel “jet-area/median” approach is presented for proton-proton collisions at centre-of-mass energies of 0.9 and 7 TeV. The data were recorded ...
• #### Measurement of the underlying event in the Drell–Yan process in proton–proton collisions at √s=7 TeV ﻿

(2012)
A measurement of the underlying event (UE) activity in proton–proton collisions at a center-of-mass energy of 7 TeV is performed using Drell–Yan events in a data sample corresponding to an integrated luminosity of 2.2 fb−1, ...
• #### Measurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at √s=8 TeV ﻿

(2015)
A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final ...
• #### Measurement of the W+ W− cross section in pp collisions at √s=7 TeV and limits on anomalous WWγ and WWZ couplings ﻿

(2013)
A measurement of W+W− production in pp collisions at √s=7 TeV is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 4.92±0.11 fb−1. The W+W− candidates consist ...
• #### Measurement of the W+W− and ZZ production cross sections in pp collisions at √s=8 TeV ﻿

(2013)
The W+W− and ZZ production cross sections are measured in proton–proton collisions at √s=8 TeV with the CMS experiment at the LHC in data samples corresponding to an integrated luminosity of up to 5.3 fb−1. The measurements ...

(2013)
• #### Measurement of the weak mixing angle with the Drell-Yan process in proton-proton collisions at the LHC ﻿

(2011)
A multivariate likelihood method to measure electroweak couplings with the Drell–Yan process at the LHC is presented. The process is described by the dilepton rapidity, invariant mass, and decay angle distributions. The ...
• #### Measurement of the Wγ and Zγ inclusive cross sections in pp collisions at √s=7  TeV and limits on anomalous triple gauge boson couplings ﻿

(2014)
Measurements of Wγ and Zγ production in proton-proton collisions at √s=7  TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at the LHC that ...
• #### Measurement of the W→eν and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at √s=500  GeV ﻿

(2012)
We report measurements of the charge-separated W+(−)→e+(−)+νe(ν¯e) and Z/γ∗→e+e− production cross sections at mid-rapidity in proton-proton collisions at s√=500  GeV. These results are based on 13.2  pb−1 of data recorded ...
• #### Measurement of the X(3872) production cross section via decays to J/ψπ + π − in pp collisions at √s=7 TeV ﻿

(2013)
The production of the X(3872) is studied in pp collisions at √s=7 TeV, using decays to J/ψπ + π −, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity ...
• #### Measurement of the Z/γ*  + b-jet cross section in pp collisions at √s=7 TeV ﻿

(2012)
The production of b jets in association with a Z/γ* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector. The inclusive cross section for ...
• #### Measurement of the ZZ production cross section and search for anomalous couplings in 2ℓ 2ℓ ′ final states in pp collisions at √s=7 TeV ﻿

(2013)
A measurement is presented of the ZZ production cross section in the ZZ → 2ℓ2ℓ′ decay mode with ℓ = e, μ and ℓ′ = e, μ, τ in proton-proton collisions at s√=7 TeV with the CMS experiment at the LHC. Results are based on ...
• #### Measurement of the Zγ production cross section in pp collisions at 8 TeV and search for anomalous triple gauge boson couplings ﻿

(2015)
The cross section for the production of Zγ in proton-proton collisions at 8 TeV is measured based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 19.5 fb−1. Events with an ...
• #### Measurement of the Λ0b lifetime in pp collisions at √s=7 TeV ﻿

(2013)
A measurement of the Λ0b lifetime using the decay Λ0b→J/ψΛ in protonproton collisions at √s=7 TeV is presented. The data set, corresponding to an integrated luminosity of about 5 fb−1, was recorded with the CMS experiment ...
• #### Measurement of the Λ0b lifetime in the exclusive decay Λ0b→J/ψΛ0 in pp¯ collisions at s√=1.96  TeV ﻿

(2012)
We measure the Λ0b lifetime in the fully reconstructed decay Λ0b→J/ψΛ0 using 10.4  fb−1 of pp¯ collisions collected with the D0 detector at s√=1.96  TeV. The lifetime of the topologically similar decay channel B0→J/ψK0S ...
• #### Measurement of the Λb cross section and the Λ¯b to Λb ratio with J/ψΛ decays in pp collisions at √s=7 TeV ﻿

(2012)
The Λb differential production cross section and the cross section ratio σ(Λ¯b)/σ(Λb) are measured as functions of transverse momentum pTΛb and rapidity |yΛb| in pp collisions at √s=7 TeV using data collected by the CMS ...

(2013)
• #### Measurement of top quark–antiquark pair production in association with a W or Z boson in pp collisions at √s=8 TeV ﻿

(2014)
A measurement of the cross section for the production of top quark–antiquark pairs ( tt¯ ) in association with a vector boson V (W or Z) in proton-proton collisions at √s=8 TeV is presented. The results are based on a ...
• #### A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at √s=8  TeV ﻿

(2014)
A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at √s=8  TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector ...
• #### Measurement of WZ and ZZ production in pp collisions at √s=8TeV in final states with b-tagged jets ﻿

(2014)
Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at √s=8 TeV in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected ...
• #### Measurement-based admission control in integrated-services networks ﻿

(1998)
To satisfy the quality of service requirements of real-time multimedia applications, networks must employ resource reservation and admission control. In this paper, we describe a new Measurement-Based Admission Control ...
• #### Measurement-based analysis, modeling, and synthesis of the Internet delay space ﻿

(2007)
Understanding the characteristics of the Internet delay space is important for the design of global-scale distributed systems. For instance, algorithms used in overlay networks are often sensitive to violations of the ...