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Measurement of the charge ratio of atmospheric muons with the CMS detector
(Elsevier, 2010-07)
We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental ...
Observation of long-range, near-side angular correlations in proton-proton collisions at the LHC
(Springer-Verlag, 2010-09)
Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a ...
First Measurement of Bose-Einstein Correlations in Proton-Proton Collisions at [sqrt] s=0.9 and 2.36 TeV at the LHC
(American Physical Society, 2010-07)
Bose-Einstein correlations have been measured using samples of proton-proton collisions at 0.9 and 2.36 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The signal is observed ...
Alignment of the CMS silicon tracker during commissioning with cosmic rays
(IOP Publishing, 2010-03)
The CMS silicon tracker, consisting of 1440 silicon pixel and 15 148 silicon strip detector modules, has been aligned using more than three million cosmic ray charged particles, with additional information from optical ...
Commissioning of the CMS High-Level Trigger with cosmic rays
(2010-03)
The CMS High-Level Trigger (HLT) is responsible for ensuring that data samples with potentially interesting events are recorded with high efficiency and good quality. This paper gives an overview of the HLT and focuses on ...
Measurement of the muon stopping power in lead tungstate
(IOP Publishing, 2010-03)
A large sample of cosmic ray events collected by the CMS detector is exploited to measure the specific energy loss of muons in the lead tungstate (PbWO₄) of the electromagnetic calorimeter. The measurement spans a momentum ...
Alignment of the CMS muon system with cosmic-ray and beam-halo muons
(IOP Publishing, 2010-03)
The CMS muon system has been aligned using cosmic-ray muons collected in 2008 and beam-halo muons from the 2008 LHC circulating beam tests. After alignment, the resolution of the most sensitive coordinate is 80 microns for ...
Search for Dijet Resonances in 7 TeV pp Collisions at CMS
(American Physical Society, 2010-11)
A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 pb-1 [pb superscript -1] collected by the CMS experiment at the Large Hadron Collider. ...
Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at [square root of] s=7 TeV
(American Physical Society, 2010-12)
A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at √s=7 [square root of s=7] TeV, is described. The data sample of the ...
Time reconstruction and performance of the CMS electromagnetic calorimeter
(IOP Publishing, 2010-03)
The resolution and the linearity of time measurements made with the CMS electromagnetic calorimeter are studied with samples of data from test beam electrons, cosmic rays, and beam-produced muons. The resulting time ...