Spectra of weakly decaying identified particles at 0.9 and 7 TeV with the CMS detector

K. Krajczár^a for the CMS Collaboration

KFKI RMKI, Budapest, Hungary

^a e-mail: krisztian.krajczar@cern.ch

Published online: 19 April 2011

Abstract

Spectra of strange hadrons have been measured in proton-proton collisions at 0.9 and 7 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The K_s⁰, Λ⁰, , and Ξ^± particles were reconstructed from their decay topologies and the event yields were measured as a function of the rapidity and the transverse momentum. The measured yields exceed the predictions of current Monte Carlo models.