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Title: Long-Range Near-Side Angular Correlations in Proton-Proton Interactions in CMS

The CMS Collaboration 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 7TeV over a broad range of pseumore »dorapidity (η) and azimuthal angle (φ) are presented using data collected with the CMS detector at the LHC. Short-range correlations in ∆η, which are studied in minimum bias events, are characterized using a simple independent cluster parameterization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied more differentially as a function of charged particle multiplicity and particle transverse momentum using a 980nb−1 data set at 7TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particles in intermediate pT’s of 1-3GeV/c, 2.0< |∆η|<4.8 and ∆φ≈0. This is the first observation of such a ridge-like feature in two-particle correlation functions in pp or p$\bar{p}$ collisions.« less
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Title: Long-Range Near-Side Angular Correlations in Proton-Proton Interactions in CMS
Authors:
Publication Date: 2010-09-21
OSTI Identifier: 1026003
Other Number(s): Other: CERN FILE ID: 20111005174
Resource Type: Multimedia
Specific Type: Multimedia Presentation
Subject: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ; PROTON-PROTON ; LHC ; COLLISIONS ; MINIMUM BIAS
Publisher: CERN
Country of Publication: CERN
Language: English
Run Time: 1:25:59
System Entry Date: 2018-06-07