Pion and Kaon multiplicities in heavy quark jets from e+e− annihilation at 29 GeV

H Aihara ,S Toutounchi,B Van Uitert,W Vernon,M Pripstein,J.C Sens,A Pevsner,A Lu,N Toge,J Hylen,T Kamae,W Gorn,A Buijs,L Madansky,R Van Tyen,C S Linsey ,M Shapiro ,K A Derby ,P Némethy ,A R Barker ,M L Stevenson ,B Blumenfeld ,A Barbaro‐Galtieri ,Hans-Uno Bengtsson ,M Wayne ,A Bross ,E S Miller ,J N Marx ,J W Gary ,R F Van Daalen Wetters ,C Y Chien ,J S Steinman ,Robert W Kenney ,G J Vandalen ,D Pellett ,M K Sullivan ,D Crane ,G Masek ,R Kofler ,J E Huth ,J J Eastman ,W G.j Langeveld ,D A Park ,R Enomoto ,W Ko ,H S Kaye ,J A Bakken ,F.c Erné ,C Zeitlin ,G J Bobbink ,B A Barnett ,M Alston‐Garnjost ,R R Mcneil ,L T Kerth ,G Shapiro ,S Yellin ,M C S Williams ,W Slater ,Tohru Takahashi ,R Lander ,E M Wang ,G Cowan ,D Bintinger ,S O Melnikoff ,S Loken ,D R Nygren ,W Wagner ,R R Ross ,L Mathis ,X Q Lu ,F.l Linde ,M G Strauss ,R J Madaras ,S K Park ,B D Magnuson ,John Matthews ,M T Ronan ,S J Maxfield ,W A Wenzel ,D O Caldwell ,J R Smith ,B C Shen ,O I Dahl ,J T White ,T Bologneşe ,K A Schwitkis ,R I Koda ,C Buchanan ,H Yamamoto ,T K Edberg ,Philippe Eberhard ,R E Avery ,K K Kwong ,D A Bauer ,H P Paar ,W.w Moses ,A V Barnes ,D H Stork ,James R Thompson ,A M Eisner ,J G Layter ,W Hofmann ,A R Clark ,F Rouse ,T Fujii ,Y X Wang ,G Lynch ,Z R Wolf ,P J Oddone ,K H Kees ,J M Hauptman ,K Maeshima ,W M Zhang

doi:10.1016/0370-2693(87)90586-7

Abstract

The multiplicities per event of π ± and K ± are measured separately for e + e - annihilation into c c , b b , and light quark pairs at E cm=29 GeV. The K ± multiplicity is higher for heavy quark events than for light quark events. The π ± multiplicity and the π ± scaled differential cross section at low x = E beam/ E beam are found to be higher for b b events than for other events.

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