Charged particle multiplicities in heavy and light quark initiated events above the Z0 peak

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ID: 271560
2002
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Abstract
We have measured the mean charged particle multiplicities separately for bb̄, cc̄ and light quark (uū,dd̄,ss̄) initiated events produced in e+e− annihilations at LEP. The data were recorded with the OPAL detector at eleven different energies above the Z0 peak, corresponding to the full statistics collected at LEP1.5 and LEP2. The difference in mean charged particle multiplicities for bb̄ and light quark events, δbl, measured over this energy range is consistent with an energy independent behaviour, as predicted by QCD, but is inconsistent with the prediction of a more phenomenological approach which assumes that the multiplicity accompanying the decay of a heavy quark is independent of the quark mass itself. Our results, which can be combined into the single measurement δbl=3.44±0.40(stat)±0.89(syst) at a luminosity weighted average centre-of-mass energy of 195 GeV, are also consistent with an energy independent behaviour as extrapolated from lower energy data.
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zivkovic2002physicscharged Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Giovanni Abbiendi,C Ainsley,P.F Åkesson,G Alexander,J Allison,P Amaral,G Anagnostou,K.J Anderson,S Arcelli,S Asai,D Axen,G Azuelos,Ian Bailey,E Barberio,Roger Barlow,R.J Batley,P Bechtle,T Behnke,K.W Bell,P.J Bell,Gideon Bella,A Bellerive,G Benelli,S Bethke,O Biebel,I.J Bloodworth,O Boeriu,P Bock,D Bonacorsi,M Boutemeur,S Braibant,L Brigliadori,R.M Brown,Karsten Buesser,H.J Burckhart,S Campana,R.K Carnegie,B Caron,A.A Carter,J.R Carter,C.Y Chang,D.G Charlton,A Csilling,M Cuffiani,S Dado,S Dallison,A De Roeck,E.A De Wolf,K Desch,B Dienes,M Donkers,J Dubbert,E Duchovni,G Duckeck,I.P Duerdoth,E Elfgren,E Etzion,F Fabbri,Lutz Feld,P Ferrari,F Fiedler,I Fleck,M Ford,A Frey,A Fürtjes,P Gagnon,J.W Gary,G Gaycken,C Geich-Gimbel,G Giacomelli,M Giunta,J Goldberg,E Gross,J Grunhaus,M Gruwé,P.O Günther,A Gupta,C Hajdu,M Hamann,G.G Hanson,K Harder,A Harel,M Harin-Dirac,M Hauschild,J Hauschildt,Christopher Hawkes,R Hawkings,R.J Hemingway,C Hensel,G Herten,R.D Heuer,J.C Hill,K Hoffman,R.J Homer,D Horváth,R Howard,P Igo-Kemenes,K Ishii,H Jeremie,P Jovanovic,T.R Junk,N Kanaya,J Kanzaki,G Karapetian,Dean Karlen,V Kartvelishvili,K Kawagoe,T Kawamoto,R.K Keeler,R.G Kellogg,B.W Kennedy,D.H Kim,K Klein,A Klier,S Kluth,T Kobayashi,M Kobel,S Komamiya,L Kormos,T Krämer,T Kress,P Krieger,J von Krogh,D Krop,K Kruger,T Kuhl,M Kupper,George Lafferty,H Landsman,D Lanske,J.G Layter,A Leins,D Lellouch,J Letts,L Levinson,J Lillich,S.L Lloyd,F.K Loebinger,J Lu,J Ludwig,A Macpherson,W Mader,S Marcellini,T.E Marchant,A.J Martin,J.P Martin,G Masetti,T Mashimo,P Mättig,W.J McDonald,J McKenna,T.J McMahon,R.A McPherson,F Meijers,P Mendez-Lorenzo,W Menges,F.S Merritt,H Mes,A Michelini,Satoshi Mihara,G Mikenberg,D.J Miller,S Moed,W Mohr,T Mori,A Mutter,K Nagai,I Nakamura,H.A Neal,R Nisius,S.W O'Neale,A Oh,A Okpara,M.J Oreglia,S Orito,C Pahl,Gabriella Pásztor,J.R Pater,G.N Patrick,J.E Pilcher,J Pinfold,D.E Plane,B Poli,J Polok,O Pooth,Mariusz Przybycien,A Quadt,Klaus Rabbertz,C Rembser,P Renkel,H Rick,J.M Roney,S Rosati,Y Rozen,K Runge,Kirsten Sachs,T Saeki,O Sahr,E.K.G Sarkisyan,A.D Schaile,O Schaile,P Scharff-Hansen,J Schieck,T Schörner-Sadenius,M Schröder,M Schumacher,C Schwick,W.G Scott,R Seuster,Tara Shears,B.C Shen,P Sherwood,G Siroli,A Skuja,A.M Smith,R Sobie,Stefan Soldner-Rembold,F Spano,Achim Stahl,K Stephens,D Strom,R Ströhmer,S Tarem,M Tasevsky,R.J Taylor,R Teuscher,M.A Thomson,E Torrence,D Toya,P Tran,T Trefzger,A Tricoli,I Trigger,Z Trócsányi,E Tsur,Miriam Watson,I Ueda,B Ujvári,B Vachon,C.F Vollmer,P Vannerem,M Verzocchi,H Voss,J Vossebeld,D Waller,C.P Ward,D.R Ward,Peter Watkins,A.T Watson,Nigel Watson,P.S Wells,T Wengler,N Wermes,D Wetterling,Graham Wilson,J.A Wilson,G Wolf,T.R Wyatt,S Yamashita,D Zer-Zion,L Zivkovic;Giovanni Abbiendi;C Ainsley;P.F Åkesson;G Alexander;J Allison;P Amaral;G Anagnostou;K.J Anderson;S Arcelli;S Asai;D Axen;G Azuelos;Ian Bailey;E Barberio;Roger Barlow;R.J Batley;P Bechtle;T Behnke;K.W Bell;P.J Bell;Gideon Bella;A Bellerive;G Benelli;S Bethke;O Biebel;I.J Bloodworth;O Boeriu;P Bock;D Bonacorsi;M Boutemeur;S Braibant;L Brigliadori;R.M Brown;Karsten Buesser;H.J Burckhart;S Campana;R.K Carnegie;B Caron;A.A Carter;J.R Carter;C.Y Chang;D.G Charlton;A Csilling;M Cuffiani;S Dado;S Dallison;A De Roeck;E.A De Wolf;K Desch;B Dienes;M Donkers;J Dubbert;E Duchovni;G Duckeck;I.P Duerdoth;E Elfgren;E Etzion;F Fabbri;Lutz Feld;P Ferrari;F Fiedler;I Fleck;M Ford;A Frey;A Fürtjes;P Gagnon;J.W Gary;G Gaycken;C Geich-Gimbel;G Giacomelli;M Giunta;J Goldberg;E Gross;J Grunhaus;M Gruwé;P.O Günther;A Gupta;C Hajdu;M Hamann;G.G Hanson;K Harder;A Harel;M Harin-Dirac;M Hauschild;J Hauschildt;Christopher Hawkes;R Hawkings;R.J Hemingway;C Hensel;G Herten;R.D Heuer;J.C Hill;K Hoffman;R.J Homer;D Horváth;R Howard;P Igo-Kemenes;K Ishii;H Jeremie;P Jovanovic;T.R Junk;N Kanaya;J Kanzaki;G Karapetian;Dean Karlen;V Kartvelishvili;K Kawagoe;T Kawamoto;R.K Keeler;R.G Kellogg;B.W Kennedy;D.H Kim;K Klein;A Klier;S Kluth;T Kobayashi;M Kobel;S Komamiya;L Kormos;T Krämer;T Kress;P Krieger;J von Krogh;D Krop;K Kruger;T Kuhl;M Kupper;George Lafferty;H Landsman;D Lanske;J.G Layter;A Leins;D Lellouch;J Letts;L Levinson;J Lillich;S.L Lloyd;F.K Loebinger;J Lu;J Ludwig;A Macpherson;W Mader;S Marcellini;T.E Marchant;A.J Martin;J.P Martin;G Masetti;T Mashimo;P Mättig;W.J McDonald;J McKenna;T.J McMahon;R.A McPherson;F Meijers;P Mendez-Lorenzo;W Menges;F.S Merritt;H Mes;A Michelini;Satoshi Mihara;G Mikenberg;D.J Miller;S Moed;W Mohr;T Mori;A Mutter;K Nagai;I Nakamura;H.A Neal;R Nisius;S.W O'Neale;A Oh;A Okpara;M.J Oreglia;S Orito;C Pahl;Gabriella Pásztor;J.R Pater;G.N Patrick;J.E Pilcher;J Pinfold;D.E Plane;B Poli;J Polok;O Pooth;Mariusz Przybycien;A Quadt;Klaus Rabbertz;C Rembser;P Renkel;H Rick;J.M Roney;S Rosati;Y Rozen;K Runge;Kirsten Sachs;T Saeki;O Sahr;E.K.G Sarkisyan;A.D Schaile;O Schaile;P Scharff-Hansen;J Schieck;T Schörner-Sadenius;M Schröder;M Schumacher;C Schwick;W.G Scott;R Seuster;Tara Shears;B.C Shen;P Sherwood;G Siroli;A Skuja;A.M Smith;R Sobie;Stefan Soldner-Rembold;F Spano;Achim Stahl;K Stephens;D Strom;R Ströhmer;S Tarem;M Tasevsky;R.J Taylor;R Teuscher;M.A Thomson;E Torrence;D Toya;P Tran;T Trefzger;A Tricoli;I Trigger;Z Trócsányi;E Tsur;Miriam Watson;I Ueda;B Ujvári;B Vachon;C.F Vollmer;P Vannerem;M Verzocchi;H Voss;J Vossebeld;D Waller;C.P Ward;D.R Ward;Peter Watkins;A.T Watson;Nigel Watson;P.S Wells;T Wengler;N Wermes;D Wetterling;Graham Wilson;J.A Wilson;G Wolf;T.R Wyatt;S Yamashita;D Zer-Zion;L Zivkovic;
Journal physics letters b
Year 2002
DOI
10.1016/s0370-2693(02)02935-0
URL
https://sciprofiles.com/publication/view/57647769ee2a0aa8d593acfed8d96f03
Keywords
events charged heavy particle multiplicities light quark

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