Strange Hadron Production In Pp And Ppb Collisions At Sqrts Mathrm Nn

Strange Hadron Production in Pp and PPb Collisions at $\sqrts_\mathrm{NN}}

Strange Particle Production in Pp Collisions at Sqrt(s)

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 K0_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.

Multiplicity Dependence of (multi-)strange Hadron Production in Proton-proton Collisions at √s