Production of Charged {pi}{sup {+-}}, {Kappa}{sup {+-}} and p/p in Hadronic Z{sup 0} Decays
Author(s) -
David Müller
Publication year - 1999
Language(s) - English
Resource type - Reports
DOI - 10.2172/10088
Subject(s) - physics , hadron , nuclear physics , particle physics , pion , particle identification , charged particle , elementary particle , perturbative qcd , quark , quantum chromodynamics , detector , ion , quantum mechanics , optics
We have updated our results on identified charged hadron production using the full SLD data sample of 550,000 hadronic Z{sup 0} decays taken between 1993 and 1998. The SLD Cherenkov Ring Imaging Detector allows the identification of clean samples of charged pions, kaons and protons over a wide momentum range, providing precise tests of perturbative QCD calculations and of fragmentation models. We have studied flavor-inclusive Z{sup 0} decays, as well as decays into light, c and b flavors, selected using the SLD vertex detector. In addition we have updated our comparison of hadron and antihadron production in light quark (rather than antiquark) jets, selected using the high SLC electron beam polarization. Differences between hadron and antihadron production at high momentum fraction provide precise measurements of leading particle production and new, stringent tests of fragmentation models
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