MEASUREMENT OF THE QUARK AND GLUON FRAGMENTATION FUNCTIONS IN Z(0) HADRONIC DECAYS

Authors
ABREU P ADAM W ADYE T AJINENKO I ALEKSEEV GD ALEMANY R ALLPORT PP ALMEHED S AMALDI U AMATO S ANDERSSON P ANDREAZZA A ANTILOGUS P APEL WD ARNOUD Y ASMAN B AUGUSTIN JE AUGUSTINUS A BAILLON P BAMBADE P BARAO F BARBI M BARBIELLINI G BARDIN DY BARKER G BARONCELLI A BARRING O BATES MJ BATTAGLIA M BAUBILLIER M BAUDOT J BECKS KH BEGALLI M BEILLIERE P BELOKOPYTOV Y BELOOUS K BENVENUTI AC BERAT C BERGGREN M BERTINI D BERTRAND D BESANCON M BIANCHI F BIGI M BILENKY MS BILLOIR P BIZOUARD MA BLOCH D BLUME M BONESINI M BONIVENTO W BOONEKAMP M BOOTH PSL BORGLAND AW BORISOV G BOSIO C BOTNER O BOUDINOV E BOUQUET B BOURDARIOS C BOWCOCK TJV BOZZO M BRANCHINI P BRAND KD BRENKE T BRENNER RA BROWN RCA BRUCKMAN P BRUNET JM BUGGE L BURAN T BURGSMUELLER T BUSCHMANN P CABRERA S CACCIA M CALVI M ROZAS AJC CAMPORESI T CANALE V CANEPA M CARENA F CARROLL L CASO C GIMENEZ MVC CATTAI A CAVALLO FR CHABAUD V CHARPENTIER P CHAUSSARD L CHECCHIA P CHELKOV GA CHEN M CHIERICI R CHLIAPNIKOV P CHOCHULA P CHOROWICZ V CHUDOBA J CINDRO V COLLINS P COLOMER M CONTRI R CORTINA E COSME G COSSUTTI F COWELL JH CRAWLEY HB CRENNELL D CROSETTI G MAESTRO JC CZELLAR S DAHM J DALMAGNE B DAMGAARD G DAUNCEY PD DAVENPORT M DASILVA W DEGHORAIN A DELLARICCA G DELPIERRE P DEMARIA N DEANGELIS A DEBOER W DEBRABANDERE S DECLERQ C DELAVAISSIERE C DELOTTO B DEMIN A DEPAULA L DIJKSTRA H DICIACCIO L DIDIODATO A DJANNATI A DOLBEAU J DOROBA K DRACOS M DREES J DREES KA DRIS M DURAND JD EDSALL D EHRET R EIGEN G EKELOF T EKSPONG G ELSING M ENGEL JP ERZEN B FALK E FANOURAKIS G FASSOULIOTIS D FEINDT M FERRARI P FERRER A FICHET S FILIPPAS TA FIRESTONE A FISCHER PA FOETH H FOKITIS E FONTANELLI F FORMENTI F FRANEK B FRODESEN AG FRUHWIRTH R FULDAQUENZER F FUSTER J GALLONI A GAMBA D GANDELMAN M GARCIA C GARCIA J GASPAR C GASPARINI U GAVILLET P GAZIS EN GELE D GERBER JP GERDYUKOV L GOKIELI R GOLOB B GONCALVES P GOPAL G GORN L GORSKI M GOUZ Y GRACCO V GRAZIANI E GREEN C GREFRATH A GRIS P GROSDIDIER G GRZELAK K GUMENYUK S GUNTHER M GUY J HAHN F HAHN S HAJDUK Z HALLGREN A HAMACHER K HARRIS FJ HEDBERG V HENRIQUES R HERNANDEZ JJ HERQUET P HERR H HESSING TL HEUSER JM HIGON E HOLMGREN SO HOLT PJ HOLTHUIZEN D HOORELBEKE S HOULDEN M HRUBEC J HUET K HULTQVIST K JACKSON JN JACOBSSON R JALOCHA P JANIK R JARLSKOG C JARLSKOG G JARRY P JEANMARIE B JOHANSSON EK JONSSON L JONSSON P JORAM C JUILLOT P KAISER M KAPUSTA F KARAFASOULIS K KARVELAS E KATSANEVAS S KATSOUFIS EC KERANEN R KHOKHLOV Y KHOMENKO BA KHOVANSKI NN KING B KJAER NJ KLAPP O KLEIN H KLUIT P KNOBLAUCH D KOKKINIAS P KORATZINOS M KOURKOUMELIS C KOUZNETSOV O KRAMMER M KREUTER C KRONKVIST I KRUMSTEIN Z KRUPINSKI W KUBINEC P KUCEWICZ W KURVINEN K LACASTA C LAKTINEH I LAMSA JW LANCERI L LANE DW LANGEFELD P LAUGIER JP LAUHAKANGAS R LEDER G LEDROIT F LEFEBURE V LEGAN CK LEISOS A LEITNER R LEMMONNE J LENZEN G LEPELTIER V LESIAK T LETHUILLIER M LIBBY J LIKO D LIPNIACKA A LIPPI I LOERSTAD B LOKEN JG LOPEZ JM LOUKAS D LUTZ P LYONS L MACNAUGHTON J MAEHLUM G MAHON JR MAIO A MALMGREN TGM MALYCHEV V MANDL F MARCO J MARCO R MARECHAL B MARGONI M MARIN JC MARIOTTI C MARKOU A MARTINEZRIVERO C MARTINEZVIDAL F GARCIA SM MASIK J MATORRAS F MATTEUZZI C MATTHIAE G MAZZUCATO M MCCUBBIN M MCKAY R MCNULTY R MCPHERSON G MEDBO J MERONI C MEYER S MEYER WT MICHELOTTO M MIGLIORE E MIRABITO L MITAROFF WA MJOERNMARK U MOA T MOELLER R MOENIG K MONGE MR MORETTINI P MUELLER H MUENICH K MULDERS M MUNDIM LM MURRAY WJ MURYN B MYATT G MYKLEBUST T NARAGHI F NAVARRIA FL NAVAS S NAWROCKI K NEGRI P NEUMANN W NEUMEISTER N NICOLAIDOU R NIELSEN BS NIEUWENHUIZEN M NIKOLAENKO V NIKOLENKO M NISS P NOMEROTSKI A NORMAND A NYGREN A OBERSCHULTEBECKMANN W OBRAZTSOV V OLSHEVSKI AG ONOFRE A ORAVA R ORAZI G ORTUNO S OSTERBERG K OURAOU A PAGANINI P PAGANONI M PAIANO S PAIN R PALKA H PAPADOPOULOU TD PAPAGEORGIOU K PAPE L PARKES C PARODI F PARZEFALL U PASSERI A PEGORARO M PERALTA L PERNEGGER H PERNICKA M PERROTTA A PETRIDOU C PETROLINI A PETROVYCK M PHILLIPS HT PIANA G PIERRE F PIMENTA M PIOTTO E PODOBNIK T PODOBRIN O POL ME POLOK G POROPAT P POZDNIAKOV V PRIVITERA P PUKHAEVA N PULLIA A RADOJICIC D RAGAZZI S RAHMANI H RATOFF PN READ AL REALE M REBECCHI P REDAELLI NG REGLER M REID D REINHARDT R RENTON PB RESVANIS LK RICHARD F RIDKY J RINAUDO G ROHNE O ROMERO A RONCHESE P ROOS L ROSENBERG EI ROSINSKY P ROUDEAU P ROVELLI T RUHLMANNKLEIDER V RUIZ A SAARIKKO H SACQUIN Y SADOVSKY A SAJOT G SALT J SANNINO M SCHNEIDER H SCHWICKERATH U SCHYNS MAE SCIOLLA G SCURI F SEAGER P SEDYKH Y SEGAR AM SEITZ A SEKULIN R SERBELLONI L SHELLARD RC SHERIDAN A SIEGRIST P SILVESTRE R SIMONETTO F SISAKIAN AN SKAALI TB SKATCHKOV N SMADJA G SMIRNOV N SMIRNOVA O SMITH GR SOKOLOV A SOLOVIANOV O SOSNOWSKI R SOUZASANTOS D SPASSOV T SPIRITI E SPONHOLZ P SQUARCIA S STAMPFER D STANESCU C STANIC S STAPNES S STAVITSKI I STEVENSON K STOCCHI A STRUB R STUGU B SZCZEKOWSKI M SZEPTYCKA M TABARELLI T TAVERNET JP TCHIKILEV O TEGENFELDT F TERRANOVA F THOMAS J TILQUIN A TIMMERMANS J TKATCHEV LG TODOROV T TODOROVA S TOET DZ TOMARADZE A TOME B TONAZZO A TORTORA L TRANSTROMER G TREILLE D TRISTRAM G TROMBINI A TRONCON C TSIROU A TURLUER ML TYAPKIN IA TYNDEL M TZAMARIAS S UEBERSCHAER B ULLALAND O UVAROV V VALENTI G VALLAZZA E VANAPELDOORN GW
Citation
P. Abreu et al., MEASUREMENT OF THE QUARK AND GLUON FRAGMENTATION FUNCTIONS IN Z(0) HADRONIC DECAYS, The European Physical Journal. C: Particles and Fields, 6(1), 1999, pp. 19-33
Citations number
28
Categorie Soggetti
Physics, Particles & Fields
Journal title
The European Physical Journal. C: Particles and Fields → ACNP
ISSN journal
14346044
Volume
6
Issue
1
Year of publication
1999
Pages
19 - 33
Database
ISI
SICI code
1434-6044(1999)6:1<19:MOTQAG>2.0.ZU;2-D
Abstract
The transverse, longitudinal and asymmetric components of the fragment ation function are measured from the inclusive charged particles produ ced in e(+)e(-) collisions at LEP. As in deep inelastic scattering, th ese data are important for tests of QCD. The transverse sigma(T) and l ongitudinal sigma(L) components of the total hadronic cross section si gma(tot) are evaluated from the measured fragmentation functions. They are found to be a sigma(T)/sigma(tot) = 0.949 +/- 0.001(stat.) +/- 0. 007(syst.) and sigma(L)/sigma(tot) = 0.051 +/- 0.001(stat.) +/- 0.007( syst.) respectively. The strong coupling constant is calculated from s igma(L)/sigma(tot) in next-to-leading order of perturbative QCD, givin g alpha(s)(M-Z) = 0.120 +/- 0.002(stat.) +/- 0.013(syst.) +/- 0.007(sc ale). Including non-perturbative power corrections :leads to alpha(s)( M-Z) = 0.101 +/- 0.002(stat.) +/- 0.013(syst.) +/- 0.007(scale). The m easured transverse and longitudinal components of the fragmentation fu nction are used to estimate the mean charged multiplicity, [n(ch)] = 2 1.21 +/- 0.01(stat.)+/- 0.20(syst.) The fragmentation functions and mu ltiplicities in bb and light quark events are compared. The measured t ransverse and longitudinal components of the fragmentation function al low the gluon fragmentation function to be evaluated.