Heidelberg 2007 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 505: Kosmische Strahlung V
T 505.3: Vortrag
Freitag, 9. März 2007, 14:30–14:45, KIP SR 1.403
Pion production in proton- and pion-carbon collisions at 12 GeV/c measured with the HARP experiment — •Christine Meurer1, Johannes Blümer1, Ralph Engel1, Andreas Haungs1, Markus Roth1, and the HARP Collaboration2 — 1Forschungszentrum Karlsruhe — 2CERN
Motivated by the importance of the measurement of p+C and pi+C interactions for hadronic interaction models used in extensive air shower simulations we analyze the pion production in p+C and pi+C reactions at 12GeV/c in the fixed target experiment HARP at CERN-PS. We present momentum spectra of positive and negative pions within a momentum range from 0.5GeV/c to 8.0GeV/c and an angular range from 30mrad to 210mrad. Systematic and statistical uncertainties are discussed and the results are compared with model predictions. Finally a Sanford-Wang function is used to parameterize the obverse spectra.