High transverse momentum Ξ baryon correlations in p+p collisions at √s=200 GeV

Abstract

Angular correlations between produced high-p TΞ− baryons and unidentified charged and neutral particles are observed in high-tower triggered (on a large electromagnetic energy deposit) √s=200 GeV p+p collisions. This trigger favors events with higher average multiplicity than those in minimum bias. These events are likely to contain jets. The average multiplicity of a high-tower triggered event is similar to that of a minimum bias event containing a Ξ baryon, which implies that Ξ baryons are likely to be produced in jets. Ξ− is higher in the triggered data then in the minimum bias sample.