Production of charged pi+-, K+- and p / anti-p in hadronic Z0 decays
Collaboration
22 pages
Part of Proceedings, International Europhysics Conference on High energy physics (EPS-HEP 1999) : Tampere, Finland, July 15-21, 1999, Lepton and photon interactions at high energies. Proceedings, 19th International Symposium, LP'99, Stanford, USA, August 9-14, 1999
Contribution to:
e-Print:
- hep-ex/9908033 [hep-ex]
Report number:
- SLAC-PUB-8159
Experiments:
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Abstract: (arXiv)
We have updated our results on identified charged hadron production using the full SLD data sample of 550,000 hadronic Z^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^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.Note:
- 22 pages, 8 figures; paper contributed to eps-hep99 and lp99
- talk: Tampere 1999/07/15
- talk: Stanford 1999/08/09
- electron positron: colliding beams
- electron positron: annihilation
- electron: polarized beam
- Z0: electroproduction
- Z0: hadronic decay
- charged particle: multiple production
- charged particle: yield
- pi
References(23)
Figures(9)