High Transverse Momentum Xi Baryon Correlations in p+p Collisions at s^(1/2)=200 GeV

TL;DR

This paper investigates angular correlations involving high transverse momentum Xi baryons in proton-proton collisions at 200 GeV, revealing their association with jet-like events and higher mean pT in triggered samples.

Contribution

It provides new insights into the production mechanisms of Xi baryons, suggesting they are predominantly produced in jets during high-energy p+p collisions.

Findings

Xi baryons are correlated with jet-like events in p+p collisions.

Triggered events show higher mean pT for Xi baryons than minimum bias events.

Xi baryons are likely produced within jets, indicating a jet-related production mechanism.

Abstract

Angular correlations between produced high pT Xi baryons and unidentified charged and neutral particles are observed in high-tower-triggered (on a large electromagnetic energy deposit) s^(1/2)=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 Xi, which implies that Xi baryons are likely to be produced in jets. Xi mean pT is higher in the triggered data then in the minimum bias sample.