Strangeness production in jets from p+p \sqrt{s} = 200 GeV collisions

Abstract

Measurements of strangeness production in jets help illuminate the QCD mechanisms in fragmentation. Furthermore, they provide a crucial baseline for heavy-ion studies where modifications in jet chemistry have recently been predicted. We present new results on strange particle production in jets from p+p \sqrt{s} = 200 GeV collisions measured by the STAR experiment. The momentum distributions of the Λ, \barΛ and K0Short particles are obtained using various jet finding algorithms, and then compared to various models. Strange particle ratios in jets are obtained and compared to values obtained from the inclusive spectra. Finally, we show jets tagged with leading strange baryons and mesons, in order to investigate whether gluon or quark jets can be isolated in this way.

arXiv comment5 pages, 4 figures, Winter Workshop on Nuclear Dynamics 2010, Jamaica

References in corpus (9)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The STAR Time Projection Chamber: A Unique Tool for Studying High Multiplicity Events at RHIC
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• A practical Seedless Infrared-Safe Cone jet algorithm
• Jet hadrochemistry as a characteristics of jet quenching
• Resummed Cross Section for Jet Production at Hadron Colliders
• Extrapolating parton fragmentation to low $Q^2$ in $e^{+}$-$e^{-}$ collisions
• Parton fragmentation in the vacuum and in the medium