JET AND UNDERLYING EVENT MEASUREMENTS IN p+p COLLISIONS AT RHIC

Author:

,CAINES HELEN1

Affiliation:

1. Physics Department, Yale University, New Haven, CT 06520, U.S.A

Abstract

The physics of hadron-hadron collisions is very complex involving both perturbative and non perturbative QCD. It is imperative to study p - p collisions in detail to provide a variety of measurements against which the theoretical calculations can be tested. Direct jet measurements, for instance, help address fundamental questions of the fragmentation process. They also form a critical baseline for comparisons of results from heavy-ion studies, where fragmentation functions are expected to be modified due to interactions with the hot and dense medium. Finally, it is important to understand how the beam-beam remnants, multi-parton interactions, and initial- and final-state radiation combine to produce the particles observed in the underlying event. I present results from p - p collisions at 200 GeV collisions as measured by the STAR experiment.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

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