Production of {pi}{sup {+-}}, K{sup {+-}}, K{sup 0}, K*{sup 0}, {phi}, p and {Lambda}{sup 0} in hadronic Z{sup 0} decays

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The authors have measured production rates as a function of momentum of the identified hadrons {pi}{sup +}, K{sup +}, K{sup 0}, K*{sup 0}, {phi}, p, {Lambda}{sup 0} and their antihadrons in inclusive hadronic Z{sup 0} decays, as well as separately in decays into light, c and b flavors. In addition they have compared hadron and antihadron production rates in light quark (rather than antiquark) jets. The SLD Cherenkov Ring Imaging Detector was used to identify charged hadrons. The vertex detector was used to tag high-purity samples of light- and b-flavor events. The electron beam polarization was used to tag samples ... continued below

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47 p.

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Abe, K.; Abe, K.; Akagi, T. & Collaboration, SLD June 1, 1997.

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The authors have measured production rates as a function of momentum of the identified hadrons {pi}{sup +}, K{sup +}, K{sup 0}, K*{sup 0}, {phi}, p, {Lambda}{sup 0} and their antihadrons in inclusive hadronic Z{sup 0} decays, as well as separately in decays into light, c and b flavors. In addition they have compared hadron and antihadron production rates in light quark (rather than antiquark) jets. The SLD Cherenkov Ring Imaging Detector was used to identify charged hadrons. The vertex detector was used to tag high-purity samples of light- and b-flavor events. The electron beam polarization was used to tag samples of quark and antiquark jets. Clear flavor dependences are observed, consistent with expectations based upon measured production and decay properties of heavy hadrons. They use the light-flavor results to test the predictions of MLLA QCD and of various fragmentation models. Differences between hadron and antihadron production in light quark jets are observed at high momentum fraction, providing direct evidence that higher-momentum particles are more likely to contain a primary quark or antiquark, and they use these results to make a new direct measurement of strangeness suppression in the jet fragmentation process.

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47 p.

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INIS; OSTI as DE97007964

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  • 18. international symposium on lepton photon interactions, Hamburg (Germany); Jerusalem (Israel), 28 Jul - 1 Aug 1997; 19-26 Aug 1997

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  • Other: DE97007964
  • Report No.: SLAC-PUB--7571
  • Report No.: CONF-970787--1;CONF-970870--1
  • Grant Number: AC03-76SF00515;FG02-91ER40676;FG03-91ER40618;FG03-92ER40689;FG03-93ER40788;FG02-91ER40672;FG02-91ER40677;AC03-76SF00098;FG02-92ER40715;FC02-94ER40818;FG03-96ER40969;FG02-91ER40627;FG02-95ER40896;FG02-92ER40704
  • Office of Scientific & Technical Information Report Number: 521614
  • Archival Resource Key: ark:/67531/metadc695682

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  • June 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 23, 2016, 3:55 p.m.

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Abe, K.; Abe, K.; Akagi, T. & Collaboration, SLD. Production of {pi}{sup {+-}}, K{sup {+-}}, K{sup 0}, K*{sup 0}, {phi}, p and {Lambda}{sup 0} in hadronic Z{sup 0} decays, article, June 1, 1997; Menlo Park, California. (digital.library.unt.edu/ark:/67531/metadc695682/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.