Strange particle production in pp collisions at sqrt(s) = 0.9 and 7 TeV
Journal Article

Published: Thursday, May 12, 2011
Citation: Journal of High Energy Physics, Volume 1105, Number 5, Pages 064
arXiv.org: 1102.4282
Link: http://www.springerlink.com/content/n121574g1552g052/

Authors (1 total): J. Rohlf

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 K0S, Λ, and Ξ− particles and their antiparticles are reconstructed from their decay topologies and the production rates are measured as functions of rapidity and transverse momentum, p T. The results are compared to other experiments and to predictions of the Pythia Monte Carlo program. The p T distributions are found to differ substantially from the Pythia results and the production rates exceed the predictions by up to a factor of three.