Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 14: Poster Session: Heavy Ions
HK 14.14: Poster
Dienstag, 9. März 2004, 13:30–15:30, Foyer
Mid-Rapidity Neutral Pion Production in Proton-Proton Collisions at √s=200 GeV — •Stefan Bathe — University of California at Riverside, Department of Physics, Riverside, CA 92521-0413, USA
The cross section of neutral pion production at mid-rapidity was measured in proton-proton collisions as part of the third year of the RHIC program.
Neutral pion production in proton-proton collisions serves as an essential reference in understanding particle production in Au+Au and d+Au collisions. Furthermore, a comparison of the results to next-to-leading order pQCD calculations provides important insight in the theoretical understanding of the measurement of the double-spin, longitudinal asymmetry ALL.
First results on the cross section measurement will be presented. As compared to the measurement from the second RHIC physics run, it is intended to increase the precision and extend the transverse momentum range.