Properties of hadronicZ decays and test of QCD generators

P Palazzi,A Vayaki,M Delfino,J M Scarr,A Roussarie,T Fearnley,F Combley,F Sefkow,C N Booth,A M Lutz,F Etienne,T Barczewski,A Cordier,J C Brient,J Grahl,M Takashima,R Alemany,F Hatfield,V Hepp,H Videau,J Wear,I Lehraus,H G Moser,B Vallage,A Antonelli,P Coyle,F Forti,L Passalacqua,A Ranieri,B Rensch,F Bossi,G Bologna,W Blum,G Mannocchi,A Gamess,T H Burnett,J F Renardy,R Geiges,W Witzeling,B Altoon,Ll Garrido,P S Marrocchesi,M Mermikides,A M Greene,J A Strong,S Loucatos,P Campana,G Fouque,M H Schune,E P Whelan,G Parrini,M Quattromini,I Videau,G Sanguinetti,D Levinthal,F Fidecaro,Z Qian,J Jousset,K Zachariadou,P Perret,O Callot,J Hilgart,H G Sander,J A Perlas,A T Belk,F Dydak,P Picchi,G Rizzo,C Guicheney,J Rothberg,A Minten,D Cinabro,G Bonvicini,H Seywerd,L M Mir,E Veitch,J Drinkard,Y Saadi,A Lusiani,A Miotto,D Schlatter,S Roehn,B Renk,J Steinberger,J P Lees,E E Kluge,S M Fisher,P R Norton,D J Candlin,Y Maumary,P Tempesta,S Orteu,K Tittel,M Schmelling,E Simopoulou,V Gaitan,L Bosisio,A S Thompson,N M Lieske,W Babbage,W Kozanecki,R Settles,G Capon,F Murtas,B Pietrzyk,H Wachsmuth,O Boyle,C Vannini,S Dugeay,M Carpinelli,M C Lemaire,C Bradaschia,F Steeg,A Putzer,U Stiegler,N R Keemer,S R Amendolia,W B Atwood,J Schwindling,C Geweniger,G Hughes,F Foster,H Drevermann,W Maitland,R Xu,C Lishka,R W Clifft,C Georgiopoulos,R Beuselinck,A Farilla,J Knobloch,W Tejessy,B Bloch-Devaux,E B Mannelli,J Raab,H Meinhard,U Stierlin,M G Green,H Dietl,F Badaud,M Pepe-Altarelli,P Payre,G Rudolph,M Davier,L Bellantoni,J G Ashman,P J Dornan,J Boucrot,T J Brodbeck,S M Walther,S Natali,G Ranjard,W T Morton,R St Denis,G Giannini,C Benchouk,S Menary,P Henrard,P Comas,T Medcalf,J Wotschak,M Corden,G Batignani,G Triggiani,B Michel,M Saich,R Technini,P Colrain,J Lauber,J K Sedgbeer,A M Walsh,I S Quazi,B Jost,T Ruan,P Colas,P Reeves,A Pacheco,I Ferrante,M Wunsch,D M Binnie,G Bencivenni,J J Veillet,J F Hassard,F Ruggieri,F Ariztizabal,G Felici,R C Jared,G Stimpfl,H Rotscheidt,A Blondel,D F Cowen,A S Schwarz,J P Schuller,S Adlung,S W Snow,B Mours,A M Bencheikh,J D Hansen,W Cameron,D Buskulic,J Boudreau,M Bardadin-Otwinowska,C K Bowdery,R Baldini,J L Harton,E Blucher,R Hagelberg,A Rosowsky ,D Pallin ,R.m Turnbull ,D Abbaneo ,J.m Crespo ,F Ligabue ,M A Giorgi ,D Kühn ,P W Cattaneo ,Z H Shi ,U Schäfer ,R Forty ,L.r West ,J.g Lynch ,I Ten Have ,M Maggi ,G Lütz ,M Nuttall ,O Braun ,G Redlinger ,D N Brown ,J Proriol ,B Dehning ,M Ikeda ,X Wu ,F Zomer ,C F Qiao ,F Le Diberder ,L Moneta ,M Schmitt ,A Falvard ,D Botterill ,G Lütjens ,A Messineo ,Apoorva Patel ,G Raso ,Z Feng ,C Goy ,B Wolf ,M J Phillips ,J M Carter ,B Gobbo ,F Palla ,D P Salmon ,D Creanza ,J Harvey ,J R Pater ,B W Leclaire ,R.p Johnson ,J Schröder ,J Lannutti ,G Iaselli ,G Tonelli ,X T Huang ,T S Mattison ,E Barberio ,M Edwards ,H R Schmidt ,S L Wu ,M Martı́nez ,P G Verdini ,L A T Bauerdick ,K M Smith ,P Janot ,E Focardi ,M De Plama ,E Locci ,R Carney ,C M Buttar ,B.s Nilsson ,G Mäggi ,D Xu ,T C Meyer ,G Laurelli ,Á Pascual ,G Ganis ,S Papalexiou ,G Cowan ,L Foà ,A Giassi ,P Hanke ,H Hu ,J.j Aubert ,Frédéric Perrier ,J Lou ,Siegmund Brandt ,J Badier ,J Conway ,U Bottigli ,P.v March ,D.p.s Ferguson ,Z Ajaltouni ,M I Parsons ,E Monnier ,P Mató ,M Cattaneo ,W Wiedenmann ,M.-N Minard ,J Rander ,Y Xie ,J Lin ,Véronique Bernard ,J R Hansen ,A Kyriakis ,B Brandl ,Yangyang Tang ,W Männer ,A Stahl ,S Wasserbaech ,R Miquel ,S Patton ,S Nuzzo ,A Venturi ,L Sawyer ,K Kleinknecht ,G Zito ,D Décamp ,F Romanò ,H Becker ,T Sloan ,Z Zhang ,F Ragusa ,T Wang ,J C Montret ,T Hansl‐Kozanecka ,F V Weber ,L Silvestris ,G Rolandi ,M Frank ,I R Tomalin ,G R Bonneaud ,R Tanaka ,R Dell’orso ,A M Litke ,A Bonissent ,V Sharma ,G P Taylor ,D Si Mohand ,M Fernández-Bosman ,D Colling ,L Mirabito ,R Edgecock ,J Walsh ,J Carr ,R El Fellous ,M Rumpf ,D W Kim ,M Talby ,A Roth ,E Fernández ,G Selvaggi ,D Rousseau ,Ph Schwemling ,M A Ciocci ,D Huang ,G Bagliesi ,D G Payne ,Y Pan ,T Wildish ,B D’ettorre-Piazzoli ,R Richter ,S J Haywood ,E Kneringer ,P Pérez ,J P Thomas ,F Preulhière ,I Efthymiopoulos ,J.-F Grivaz ,P Heusse ,G Wolf ,W Zhao ,P H Hansen ,A J Finch ,E Lançon ,V Bertín ,A.w Halley ,L.f Thompson ,J.c Thompson ,S L Cartwright ,D Jackson ,J Lefrançois ,V Chiarella ,A G Wright ,R Möllerud ,J Nash ,A Rougé ,F Cerutti ,T Löhse ,X Chen ,Milton Whitney ,C Grupen ,R.g Jacobsen ,J Zhang ,Y S Gao ,T J Jones ,C Raine ,G Zobernig

doi:10.1007/bf01482583

Properties of hadronicZ decays and test of QCD generators

P Palazzi, A Vayaki + Show 402 more

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https://doi.org/10.1007/bf01482583

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#Parton Shower Model #Shower Model + Show 8 more

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Abstract

Distributions are presented of event shape variables, jet roduction rates and charged particle momenta obtained from 53 000 hadronicZ decays. They are compared to the predictions of the QCD+hadronization models JETSET, ARIADNE and HERWIG, and are used to optimize several model parameters. The JETSET and ARIADNE coherent parton shower (PS) models with running αs and string fragmentation yield the best description of the data. The HERWIG parton shower model with cluster fragmentation fits the data less well. The data are in better agreement with JETSET PS than with JETSETO(α 2S ) matrix elements (ME) even when the renormalization scale is optimized.

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