Now showing items 21-40 of 662

• #### Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at √s = 8 TeV ﻿

(2015)
A search is presented for physics beyond the standard model in final states with two opposite-sign same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 19.4 ...
• #### 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 ...
• #### Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at √s=8 TeV ﻿

(2015)
Dimuon and dielectron mass spectra, obtained from data resulting from proton-proton collisions at 8 TeV and recorded by the CMS experiment, are used to search for both narrow resonances and broad deviations from standard ...
• #### Observation of the rare Bs0 →µ+µ− decay from the combined analysis of CMS and LHCb data ﻿

(2015)
The standard model of particle physics describes the fundamental particles and their interactions via the strong, electromagnetic and weak forces. It provides precise predictions for measurable quantities that can be tested ...
• #### Measurement of the inclusive 3-jet production differential cross section in proton–proton collisions at 7 TeV and determination of the strong coupling constant in the TeV range ﻿

(2015)
This paper presents a measurement of the inclusive 3-jet production differential cross section at a proton–proton centre-of-mass energy of 7 TeV using data corresponding to an integrated luminosity of 5fb−1collected with ...
• #### Search for decays of stopped long-lived particles produced in proton–proton collisions at √s=8TeV ﻿

(2015)
A search has been performed for long-lived particles that could have come to rest within the CMS detector, using the time intervals between LHC beam crossings. The existence of such particles could be deduced from observation ...
• #### Charged-to-neutral correlation at forward rapidity in Au + Au collisions at √sNN=200 GeV ﻿

(2015)
Event-by-event fluctuations of the multiplicities of inclusive charged particles and photons at forward rapidity in Au+Au collisions at √sNN=200 GeV have been studied. The dominant contribution to such fluctuations is ...
• #### Searches for supersymmetry based on events with b jets and four W bosons in pp collisions at 8 TeV ﻿

(2015)
Five mutually exclusive searches for supersymmetry are presented based on events in which b jetsb jets and four W bosons are produced in proton–proton collisions at √s=8 TeV. The data, corresponding to an integrated ...
• #### Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton–proton collisions at √s=8 TeV ﻿

(2015)
A search is presented for quark contact interactions and extra spatial dimensions in proton–proton collisions at √s=8 TeV using dijet angular distributions. The search is based on a data set corresponding to an integrated ...
• #### Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in √sNN=200 GeV Au+Au collisions ﻿

(2015)
A data-driven method was applied to Au+Au collisions at √sNN=200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Δη-dependent and Δη-independent correlations by using two- and four-particle ...
• #### Search for a standard model-like Higgs boson in the μ+μ− and e+e− decay channels at the LHC ﻿

(2015)
A search is presented for a standard model-like Higgs boson decaying to the μ+μ− or e+e− final states based on proton–proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated ...
• #### Measurement of the cross section ratio σtt¯bb¯/σtt¯jj in pp collisions at √s=8 TeV ﻿

(2015)
The first measurement of the cross section ratio σtt¯bb¯/σtt¯jj is presented using a data sample corresponding to an integrated luminosity of 19.6 fb−1 collected in pp collisions at √s=8 TeV with the CMS detector at the ...
• #### Measurement of electroweak production of two jets in association with a Z boson in proton–proton collisions at √s=8TeV ﻿

(2015)
The purely electroweak (EW) cross section for the production of two jets in association with a Z boson, in proton–proton collisions at √s=8TeV , is measured using data recorded by the CMS experiment at the CERN LHC, ...
• #### Performance of the CMS missing transverse momentum reconstruction in pp data at √s = 8 TeV ﻿

(2015)
The performance of missing transverse energy reconstruction algorithms is presented using √s=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and ...
• #### 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 ...
• #### Magnetic field power spectra and magnetic radial diffusion coefficients using CRRES magnetometer data ﻿

(2015)
We used the fluxgate magnetometer data from Combined Release and Radiation Effects Satellite (CRRES) to estimate the power spectral density (PSD) of the compressional component of the geomagnetic field in the ∼1 mHz to ∼8 ...
• #### Long-range two-particle correlations of strange hadrons with charged particles in pPb and PbPb collisions at LHC energies ﻿

(2015)
Measurements of two-particle angular correlations between an identified strange hadron (KS0 or Λ/Λ¯) and a charged particle, emitted in pPb collisions, are presented over a wide range in pseudorapidity and full azimuth. ...
• #### Search for disappearing tracks in proton-proton collisions at √s = TeV ﻿

(2015)
A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associated calorimeter ...
• #### Search for new resonances decaying via WZ to leptons in proton–proton collisions at √s=8 TeV ﻿

(2015)
A search is performed in proton–proton collisions at √s=8 TeV for exotic particles decaying via WZ to fully leptonic final states with electrons, muons, and neutrinos. The data set corresponds to an integrated luminosity ...
• #### 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 ...