MULTIPLICITY AND TRANSVERSE-MOMENTUM CORRELATIONS IN MULTIHADRONIC FINAL-STATES IN E(-) INTERACTIONS AT ROOT-S=91.2 GEV()E()

Authors
AKERS R ALEXANDER G ALLISON J ANDERSON KJ ARCELLI S ASTBURY A AXEN D AZUELOS G BALL AH BARLOW RJ BARNETT S BARTOLDUS R BATLEY JR BEAUDOIN G BECK A BECK GA BECKER J BEESTON C BEHNKE T BELL KW BELLA G BENTKOWSKI P BERLICH P BETHKE S BIEBEL O BLOODWORTH IJ BOCK P BODEN B BOSCH HM BOUTEMEUR M BRIGHTTHOMAS P BROWN RM BUIJS A BURCKHART HJ BURGARD C CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLTON DG CHU SL CLARKE PEL CLAYTON JC COHEN I CONBOY JE COOPER M COUPLAND M CUFFIANI M DADO S GALLAVALLE GM DARLING C DEJONG S DELPOZO LA DENG H DIECKMANN A DITTMAR M DIXIT MS SILVA EDCE DUBOSCQ JE DUCHOVNI E DUCKECK G DUERDOTH IP DUMAS DJP ELCOMBE PA ESTABROOKS PG ETZION E EVANS HG FABBRI F FABBRO B FIERRO M FINCKEKEELER M FISCHER HM FONG DG FOUCHER M GAIDOT A GARY JW GASCON J GEDDES NI GEICHGIMBEL C GENSLER SW GENTIT FX GERALIS T GIACOMELLI G GIACOMELLI P GIACOMELLI R GIBSON V GIBSON WR GILLIES JD GOLDBERG J GINGRICH DM GOODRICK MJ GORN W GRANDI C GRANT FC HAGEMANN J HANSON GG HANSROUL M HARGROVE CK HARRISON PF HART J HART PA HATTERSLEY PM HAUSCHILD M HAWKES CM HEFLIN E HEMINGWAY RJ HERTEN G HEUER RD HILL JC HILLIER SJ HILSE T HINSHAW DA HOBSON PR HOCHMAN D HOMER RJ HONMA AK HUGHESJONES RE HUMBERT R IGOKEMENES P IHSSEN H IMRIE DC JANISSEN AC JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JONES M JONES RWL JOVANOVIC P JUI C KARLEN D KAWAGOE K KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KING J KLUTH S KOBAYASHI T KOETKE DS KOKOTT TP KOMAMIYA S KOWALEWSKI R HOWARD R VONKROGH J KROLL J KYBERD P LAFFERTY GD LAFOUX H LAHMANN R LAUBER J LAYTER JG LEBLANC P LEDU P LEE AM LEFEBVRE E LEHTO MH LELLOUCH D LEROY C LETTS J LEVINSON L LI Z LLOYD SL LOEBINGER FK LORAH JM LORAZO B LOSTY MJ LOU XC LUDWIG J LUIG A MANNELLI M MARCELLINI S MARKUS C MARTIN AJ MARTIN JP MASHIMO T MATTIG P MAUR U MCKENNA J MCMAHON TJ MCNUTT JR MEIJERS F MERRITT FS MES H MICHELINI A MIDDLETON RP MIKENBERG G MILDENBERGER J MILLER DJ MIR R WOHR W MOISAN C MONTANARI A MORI T MORII M MULLER U NELLEN B NGUYEN HH ONEALE SW OAKHAM FG ODORICI F OGREN HO ORAM CJ OREGLIA MJ ORITO S PANSART JP PASCHIEVICI P PATRICK GN PAZJAOSHVILI N PEARCE MJ PFISTER P PILCHER JE PINFOLD J PITMAN D PLANE DE POFFENBERGER P POLI B PRITCHARD TW PRZYSIEZNIAK H QUAST G REDMOND MW REES DL RICHARDS GE RISON M ROBINS SA ROBINSON D ROLLNIK A RONEY JM ROS E ROSSBERG S ROSSI AM ROSVICK M ROUTENBURG P RUNGE K RUNOLFSSON O RUST DR SASAKI M SBARRA C SCHAILE AD SCHAILE O SCHAPPERT W SCHARF F SCHARFFHANSEN P SCHENK P SCHMITT B VONDERSCHMITT H SCHRODER M SCHULTZCOULON HC SCHUTZ P SCHULZ M SCHWICK C SCHWIENING J SCOTT WG SETTLES M SHEARS TG SHEN BC SHEPHERDTHEMISTOCLEOUS CH SHERWOOD P SIROLI GP SKILLMAN A SKUJA A SMITH AM SMITH TJ SNOW GA SOBIE R SPRINGER RW SPROSTON M STAHL A STEGMANN C STEPHENS K STEUERER J STROHMER R STROM D TAKEDA H TAKESHITA T TAREM S TECCHIO M TEIXEIRADIAS P TESCH N THOMSON MA TORRENTELUJAN E TOWERS S TRANSTROMER G TRESILIAN NJ TSUKAMOTO T TURNER MF VANDENPLAS D VANKOOTEN R VANDALEN GJ VASSEUR G WAGNER A WAGNER DL WAHL C WARD CP WARD DR WARD JJ WATKINS PM WATSON AT WATSON NK WEBER P WELLS PS WERMES N WHALLEY MA WILKENS B WILSON GW WILSON JA WINTERER VH WLODEK T WOLF G WOTTON S WYATT TR YAARI R YEAMAN A YEKUTIELI G YURKO M ZEUNER W ZORN GT
Citation
R. Akers et al., MULTIPLICITY AND TRANSVERSE-MOMENTUM CORRELATIONS IN MULTIHADRONIC FINAL-STATES IN E(-) INTERACTIONS AT ROOT-S=91.2 GEV()E(), Physics letters. Section B, 320(3-4), 1994, pp. 417-430
Citations number
53
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
320
Issue
3-4
Year of publication
1994
Pages
417 - 430
Database
ISI
SICI code
0370-2693(1994)320:3-4<417:MATCIM>2.0.ZU;2-U
Abstract
on charged multiplicity of the mean transverse momentum of charged had rons, measured with respect to the thrust axis. The study was performe d on a high statistics sample of Z(0) decays to multihadronic final st ates collected by the OPAL Collaboration at LEP. The positive forward- backward multiplicity correlation observed in our inclusive sample can be understood in terms of a superposition of distinct event topologie s characterized by a different amount of hard gluon radiation (2-, 3- and 4-jet events) and with different mean multiplicities. The residual positive correlation that we see in a clean 2-jet sample can be inter preted in terms of fragmentation properties of different quark flavour s and of the production and decay of resonances. We have compared the observed effects with the predictions of QCD-based parton shower model s. The data are well described by the Jetset 7.3 Monte Carlo, while He rwig 5.5 does not satisfactorily reproduce the measured correlations. Hard gluon radiation is also shown to be responsible for the observed increase of about 40% in the mean transverse momentum of produced char ged hadrons in the multiplicity range from 10 to 30. The comparison wi th the results obtained in an analysis of a sample enriched in Z(0) -- > b $$($) over bar b events, shows that the presence of heavy flavours does not contribute significantly to the observed effect.