language: en

Strangeness production in jets from p+p √ s = 200 GeV collisions

Anthony R. Timmins

[for the STAR Collaboration]

Department of Physics and Astronomy, Wayne State University,
666 W. Hancock, Detroit, MI 48201, USA
E-mail: tone421@rcf.rhic.bnl.gov

Abstract. Measurements of strangeness production in jets help illuminate the QCD mechanisms in fragmentation. Furthermore, they provide a crucial baseline for heavyion studies where modifications in jet chemistry have recently been observed by the STAR experiment. We present new results on strange particle production in jets from p+p √ s = 200 GeV collisions measured by the STAR experiment. The fragmentation functions of the Λ , ¯ Λ and K 0 S particles are obtained using various jet finding algorithms, and then compared to various models. Strange particle ratios in jets will be obtained and compared to values obtained from the inclusive spectra. Finally, we will show jets tagged with leading strange baryons and mesons, in order to investigate whether gluon or quark jets can be isolated in this way.

1. Introduction