Jet and Underlying Event Measurements in P+P Collisions at RHIC

Details Jet and Underlying Event Measurements in P+P Collisions at RHIC Jet and Underlying Event Measurements in P+P Collisions at RHIC

2010-11-20

arxiv.org/abs/1011.4614v1

Physics

Nuclear Physics

Nuclear Experiment

Proceedings for the Prague Jets in pp and Heavy Ions workshop April 12-14 2010

Scientific paper

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.

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