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Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC
CMS Collaboration
CMS Collaboration
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Abstract
Measurements of strange hadron (K0S, + , and −+ +) transverse momentum spectra in pp, pPb, and PbPbcollisions are presented over a wide range of rapidity and event charged-particle multiplicity. The data were collected with the CMS detector at the CERN LHC in ppcollisions at √s=7 TeV, pPbcollisions at √sNN=5.02 TeV, and PbPbcollisions at √sNN=2.76 TeV. The average transverse kinetic energy is found to increase with multiplicity, at a faster rate for heavier strange particle species in all systems. At similar multiplicities, the difference in average transverse kinetic energy between different particle species is observed to be larger for ppand pPbevents than for PbPbevents. In pPbcollisions, the average transverse kinetic energy is found to be slightly larger in the Pb-going direction than in the p-going direction
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2017-02-20
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Elsevier
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CMSCollaboration_2017.pdf
Adobe PDF, 1.45 MB
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CMS, Physics, Heavy ion, Spectra, Radial flow
Citation
CMS Collaboration. (2017). Multiplicity and rapidity dependence of strange hadron production in pp, pPb, and PbPb collisions at the LHC. Physics letters B, 768, 103-129.