Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV

6533b833fe1ef96bd129b864

RESEARCH PRODUCT

Measurement of Event Shape and Inclusive Distributions at $\sqrt{s} =$ 130 and 136 GeV

P Abreu W Adam T Adye I Ajinenko G D Alekseev R Alemany P P Allport S Almehed Ugo Amaldi S Amato A Andreazza M L Andrieux P Antilogus W D Apel B ÅSman J E Augustin A Augustinus Paul Baillon P Bambade F Barão R Barate M S Barbi Guido Barbiellini Dimitri Yuri Bardin A Baroncelli O Bärring J A Barrio Walter Bartl M J Bates Marco Battaglia M Baubillier J Baudot K H Becks M Begalli P Beillière Yu A Belokopytov Alberto C Benvenuti M Berggren D Bertini D Bertrand M Besançon F Bianchi M Bigi S M Bilenky P Billoir M A Bizouard D Bloch M Blume T Bolognese M Bonesini W Bonivento P S L Booth C Bosio O Botner E Boudinov B Bouquet C Bourdarios T J V Bowcock M Bozzo P Branchini K D Brand T Brenke R A Brenner C Bricman R C A Brown P Brückman J M Brunet L Bugge T Buran T Burgsmüller P Buschmann A Buys S Cabrera M Caccia M Calvi A J Camacho-rozas T Camporesi V Canale M Canepa K Cankocak F Cao F Carena L Carroll Carlo Caso M V Castillo-gimenez A Cattai F R Cavallo V Chabaud M M Chapkin P Charpentier L Chaussard P Checchia G A Chelkov M Chen R Chierici P V Chliapnikov P Chochula V Chorowicz J Chudoba V Cindro P Collins R Contri E Cortina G Cosme F Cossutti J H Cowell H B Crawley D J Crennell G Crosetti J Cuevas-maestro S Czellar Erik Dahl-jensen J Dahm B D'almagne M Dam G Damgaard P D Dauncey Martyn Davenport W Da Silva C Defoix A Deghorain G Della Ricca P A Delpierre N Demaria A De Angelis Wim De Boer S De Brabandere C De Clercq C De La Vaissière B De Lotto A De Min L S De Paula C De Saint-jean H Dijkstra Lucia Di Ciaccio A Di Diodato F Djama J Dolbeau M Dönszelmann K Doroba M Dracos J Drees K A Drees M Dris J D Durand D M Edsall R Ehret G Eigen T J C Ekelöf Gösta Ekspong M Elsing J P Engel B Erzen M C Espirito-santo E Falk D Fassouliotis Michael Feindt A Fenyuk A Ferrer S Fichet A Filippas-tassos A Firestone P A Fischer H Föth E Fokitis F Fontanelli F Formenti B J Franek P Frenkiel D E C Fries A G Frodesen R Frühwirth F Fulda-quenzer J A Fuster A Galloni D Gamba M Gandelman C García J García C Gaspar U Gasparini P Gavillet E N Gazis D Gelé J P Gerber L N Gerdyukov R Gokieli B Golob Gian P Gopal L Gorn M Górski Yu Guz Valerio Gracco E Graziani C Green A Grefrath P Gris G Grosdidier K Grzelak S A Gumenyuk P Gunnarsson M Günther J Guy F Hahn S Hahn Z Hajduk A Hallgren K Hamacher F J Harris V Hedberg R P Henriques J J Hernández P Herquet H Herr T L Hessing E Higón Hans Jürgen Hilke T S Hill S O Holmgren P J Holt D J Holthuizen S Hoorelbeke M A Houlden Josef Hrubec K Huet K Hultqvist J N Jackson R Jacobsson P Jalocha R Janik C Jarlskog G Jarlskog P Jarry B Jean-marie E K Johansson L B Jönsson P E Jönsson Christian Joram P Juillot M Kaiser F Kapusta K Karafasoulis M Karlsson E Karvelas S Katsanevas E C Katsoufis R Keränen Yu A Khokhlov B A Khomenko N N Khovanskii B J King N J Kjaer O Klapp H Klein A Klovning P M Kluit B Köne P Kokkinias M Koratzinos K Korcyl V Kostyukhin C Kourkoumelis O Kuznetsov Manfred Krammer C Kreuter I J Kronkvist Z Krumshtein W Krupinski P Kubinec W Kucewicz K L Kurvinen C Lacasta I Laktineh J Lamsa L Lanceri D W Lane P Langefeld V Lapin J P Laugier R Lauhakangas Gerhard Leder F Ledroit V Lefébure C K Legan R Leitner J Lemonne Georg Lenzen V Lepeltier T Lesiak J Libby D Liko R Lindner A Lipniacka I Lippi B Lörstad J G Loken J M López D Loukas P Lutz L Lyons J N Macnaughton G Maehlum J R Mahon A Maio A Malek T G M Malmgren V Malychev F Mandl J Marco R P Marco B Maréchal M Margoni J C Marin C Mariotti A Markou C Martínez-rivero F Martínez-vidal S Martí I García J Masik F Matorras C Matteuzzi Giorgio Matthiae M Mazzucato M L Mccubbin R Mckay R Mcnulty J Medbo M Merk C Meroni S Meyer W T Meyer M Michelotto E Migliore L Mirabito Winfried A Mitaroff U Mjörnmark T Moa R Møller K Mönig M R Monge P Morettini H Müller K Münich M Mulders L M Mundim W J Murray B Muryn Gerald Myatt F Naraghi Francesco Luigi Navarria S Navas K Nawrocki P Negri W Neumann N Neumeister R Nicolaidou B S Nielsen M Nieuwenhuizen V Nikolaenko P Niss A Nomerotski Ainsley Normand W Oberschulte-beckmann V F Obraztsov A G Olshevskii A Onofre Risto Orava K ÖSterberg A Ouraou P Paganini M Paganoni P Pagès R Pain H Palka T D Papadopoulou K Papageorgiou L Pape C Parkes F Parodi A Passeri M Pegoraro Manfred Pernicka A Perrotta C Petridou A Petrolini M Petrovykh H T Phillips G Piana F Pierre M Pimenta O Podobrin M E Pol G Polok P Poropat V Pozdnyakov P Privitera N Pukhaeva Antonio Pullia D Radojicic S Ragazzi H Rahmani J Rames P N Ratoff A L Read M Reale P Rebecchi N G Redaelli Meinhard Regler D Reid P B Renton L K Resvanis F Richard J Richardson J Rídky G Rinaudo I Ripp A Romero I Roncagliolo P Ronchese L Roos E I Rosenberg E Rosso Patrick Roudeau T Rovelli W Rückstuhl V Ruhlmann-kleider A Ruiz K Rybicki H Saarikko Yu Sacquin A Sadovskii O Sahr G Sajot J Salt J Sánchez M Sannino M Schimmelpfennig H Schneider U Schwickerath M A E Schyns G Sciolla F Scuri P Seager Yu Sedykh A M Segar A Seitz R L Sekulin L Serbelloni R C Shellard P Siegrist R Silvestre S Simonetti F Simonetto A N Sissakian B Sitár T B Skaali G Smadja N Smirnov O G Smirnova G R Smith R Sosnowski D Souza-santos Tz Spassoff E Spiriti P Sponholz S Squarcia C Stanescu Steinar Stapnes I Stavitski K Stevenson F Stichelbaut A Stocchi J Strauss R Strub B Stugu M Szczekowski M Szeptycka T Tabarelli De Fatis J P Tavernet O G Chikilev J Thomas A Tilquin J Timmermans L G Tkatchev T Todorov S Todorova D Z Toet A G Tomaradze B Tomé A Tonazzo L Tortora G Tranströmer D Treille W Trischuk G Tristram A Trombini C Troncon A L Tsirou M L Turluer I A Tyapkin M Tyndel S Tzamarias B ÜBerschär O Ullaland V Uvarov G Valenti E Vallazza G W Van Apeldoorn P Van Dam J Van Eldik A Van Lysebetten N Vassilopoulos G Vegni L Ventura W A Venus F Verbeure M Verlato L S Vertogradov D Vilanova P Vincent L Vitale E Vlasov A S Vodopyanov V Vrba H Wahlen C Walck M Weierstall Peter Weilhammer C Weiser Alan M Wetherell D Wicke J H Wickens M Wielers G R Wilkinson W S C Williams M Winter M Witek T Wlodek K Woschnagg K Yip O P Yushchenko F Zach A Zaitsev A Zalewska-bak Piotr Zalewski D Zavrtanik E Zevgolatakos N I Zimin M Zito D Zontar G C Zucchelli G Zumerle

subject

High energy Particle physics Z(0) RESONANCE Physics and Astronomy (miscellaneous)Electron–positron annihilation HADRONIC Z-DECAYS; E+E-ANNIHILATION; ALPHA-S; POWER CORRECTIONS; Z(0) RESONANCE; MONTE-CARLO; QCD MODELS; ENERGY; FRAGMENTATION; PREDICTIONS Hadron PREDICTIONS Thrust 01 natural sciences 7. Clean energy Partícules (Física nuclear)Nuclear physics ENERGY Fragmentation (mass spectrometry)POWER CORRECTIONS MONTE-CARLO 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]ALPHA-S 010306 general physics Detectors de radiació DELPHI Physics Quantum chromodynamics 010308 nuclear & particles physics High Energy Physics::Phenomenology E+E-ANNIHILATION LARGE ELECTRON POSITRON COLLIDER Charged particle HADRONIC Z-DECAYS Large Electron–Positron Collider PARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHI QCD MODELS PARTICLE PHYSICS High Energy Physics::Experiment FRAGMENTATION Particle Physics - Experiment

description

Inclusive charged particle and event shape distributions are measured using 321 hadronic events collected with the DELPHI experiment at LEP at effective centre of mass energies of 130 to 136 GeV. These distributions are presented and compared to data at lower energies, in particular to the precise Z data. Fragmentation models describe the observed changes of the distributions well. The energy dependence of the means of the event shape variables can also be described using second order QCD plus power terms. A method independent of fragmentation model corrections is used to determine $\alpha_s$ from the energy dependence of the mean thrust and heavy jet mass. It is measured to be: % %\alpha_s(M_{\rm Z}) = 0.116 \pm 0.002_{exp} \pm 0.007_{theo} % % %\noindent %from the data up to Z energies and \alpha_s(133\mbox{ GeV}) = 0.116 \pm 0.007_{exp} {^{+0.005}_{-0.004}}_{theo} %\noindent from the high energy data.

year	journal	country	edition	language
1997-01-01

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