Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2009-02-12
Eur.Phys.J.C62:133-137,2009
Physics
Nuclear Physics
Nuclear Experiment
Hot Quarks 08 Proceedings
Scientific paper
10.1140/epjc/s10052-009-0951-0
The measurement of jet fragmentation functions in p+p collisions at 200 GeV is of great interest because it provides a baseline to study jet quenching in heavy-ion collisions. It is expected that jet quenching in nuclear matter modifies the jet energy and multiplicity distributions, as well as the jet hadrochemical composition. Therefore, a systematic study of the fragmentation functions for charged hadrons and identified particles is a goal both in p+p and Au+Au collisions at RHIC. Studying fragmentation functions for identified particles is interesting in p+p by itself because it provides a test of NLO calculations at RHIC energies. We present a systematic comparison of jet energy spectra and fragment distributions using different jet-finding algorithms in p+p collisions in STAR. Fragmentation functions of charged and neutral strange particles are also reported for different jet energies.
Bruna Elena
for the STAR Collaboration
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