Flow and Correlations in PbPb and pPb Collisions from CMS Experiment

Measurements of two- and four-particle angular correlations for inclusive charged particles in pPb collisions at √sNN = 5.02 TeV are presented over a wide pseudorapidity range, |ƞ| < 2.5 and full azimuth from the CMS experiment. Results from 31 nb−1 of pPb data, collected during the 2013 LHC run...

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Main Author: Sharma Monika
Format: Article
Language:English
Published: EDP Sciences 2014-03-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20146604027
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author Sharma Monika
author_facet Sharma Monika
author_sort Sharma Monika
collection DOAJ
description Measurements of two- and four-particle angular correlations for inclusive charged particles in pPb collisions at √sNN = 5.02 TeV are presented over a wide pseudorapidity range, |ƞ| < 2.5 and full azimuth from the CMS experiment. Results from 31 nb−1 of pPb data, collected during the 2013 LHC running are compared to 2.76 TeV semi peripheral PbPb collision data, from 2011 PbPb run, having similar range of particle multiplicities. The second-order (ν2) and third-order (ν3) anisotropy harmonics are extracted using the two-particle azimuthal correlation technique. ν2 is also extracted using a four-particle cumulant method to further explore the multi-particle nature of correlations in pPb collisions. We observe a remarkable similarity in the ν3 signal as a function of multiplicity between pPb and PbPb systems.
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spelling doaj.art-6baccfa70c9f481a8f679466a8d799f42022-12-21T20:16:14ZengEDP SciencesEPJ Web of Conferences2100-014X2014-03-01660402710.1051/epjconf/20146604027epjconf_inpc2013_04027Flow and Correlations in PbPb and pPb Collisions from CMS ExperimentSharma MonikaMeasurements of two- and four-particle angular correlations for inclusive charged particles in pPb collisions at √sNN = 5.02 TeV are presented over a wide pseudorapidity range, |ƞ| < 2.5 and full azimuth from the CMS experiment. Results from 31 nb−1 of pPb data, collected during the 2013 LHC running are compared to 2.76 TeV semi peripheral PbPb collision data, from 2011 PbPb run, having similar range of particle multiplicities. The second-order (ν2) and third-order (ν3) anisotropy harmonics are extracted using the two-particle azimuthal correlation technique. ν2 is also extracted using a four-particle cumulant method to further explore the multi-particle nature of correlations in pPb collisions. We observe a remarkable similarity in the ν3 signal as a function of multiplicity between pPb and PbPb systems.http://dx.doi.org/10.1051/epjconf/20146604027
spellingShingle Sharma Monika
Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
EPJ Web of Conferences
title Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
title_full Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
title_fullStr Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
title_full_unstemmed Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
title_short Flow and Correlations in PbPb and pPb Collisions from CMS Experiment
title_sort flow and correlations in pbpb and ppb collisions from cms experiment
url http://dx.doi.org/10.1051/epjconf/20146604027
work_keys_str_mv AT sharmamonika flowandcorrelationsinpbpbandppbcollisionsfromcmsexperiment