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Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV

By The CMS Collaboration

Abstract

The spectra of strange hadrons are measured in proton-proton collisions, recorded by the CMS experiment at the CERN LHC, at centre-of-mass energies of 0.9 and 7 TeV. The K^0_s, Lambda, and Xi^- particles and their antiparticles are reconstructed from their decay topologies and the production rates are measured as functions of rapidity and transverse momentum. The results are compared to other experiments and to predictions of the PYTHIA Monte Carlo program. The transverse momentum distributions are found to differ substantially from the PYTHIA results and the production rates exceed the predictions by up to a factor of three

Topics: High Energy Physics - Experiment
Year: 2011
DOI identifier: 10.1007/JHEP05(2011)064
OAI identifier: oai:arXiv.org:1102.4282
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