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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 ofmore » pseudorapidity (?) and azimuthal angle (f) are presented using data collected with the CMS detector at the LHC. Short-range correlations in ??, 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 ? (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< |??|<4.8 and ?f˜0. This is the ?rst observation of such a ridge-like feature in two-particle correlation functions in pp or p-pbar collisions. EVO Universe, password "seminar"; Phone Bridge ID: 2330444 Password: 5142« less
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Title: Long-Range Near-Side Angular Correlations in Proton-Proton Interactions in CMS.
Publication Date: 2010-09-21
OSTI Identifier: 1026003
Other Number(s): Other: CERN FILE ID: 20111005174
Resource Type: Multimedia
Specific Type: Multimedia Presentation
Subject:
Publisher: CERN
Country of Publication: CERN
Language: English
Run Time: 1:25:59
System Entry Date: 2016-01-28