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Titolo:
MULTIPLICITY AND TRANSVERSE-MOMENTUM CORRELATIONS IN MULTIHADRONIC FINAL-STATES IN E(-) INTERACTIONS AT ROOT-S=91.2 GEV()E()
Autore:
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;
Indirizzi:
UNIV MANCHESTER,DEPT PHYS,SCHUSTER LAB MANCHESTER M13 9PL ENGLAND UNIV BIRMINGHAM,SCH PHYS & SPACE RES BIRMINGHAM B15 2TT ENGLAND UNIV BOLOGNA,DIPARTIMENTO FIS I-40126 BOLOGNA ITALY INFN I-40126 BOLOGNA ITALY UNIV BONN,INST PHYS D-53115 BONN GERMANY UNIV CALIF RIVERSIDE,DEPT PHYS RIVERSIDE CA 92521 CAVENDISH LAB CAMBRIDGE CB3 0HE CAMBS ENGLAND CARLETON UNIV,DEPT PHYS OTTAWA K1S 5B6 ON CANADA CARLETON UNIV,CTR RES PARTICLE PHYS OTTAWA K1S 5B6 ON CANADA CERN,EUROPEAN ORG PARTICLE PHYS CH-1211 GENEVA 23 SWITZERLAND UNIV CHICAGO,ENRICO FERMI INST CHICAGO IL 60637 UNIV CHICAGO,DEPT PHYS CHICAGO IL 60637 ALBERT LUDWIGS UNIV,FAK PHYS D-79104 FREIBURG GERMANY UNIV HEIDELBERG,INST PHYS D-69120 HEIDELBERG GERMANY INDIANA UNIV,DEPT PHYS BLOOMINGTON IN 47405 UNIV LONDON,QUEEN MARY & WESTFIELD COLL LONDON E1 4NS ENGLAND UNIV LONDON BIRKBECK COLL LONDON WC1E 7HV ENGLAND UNIV COLL LONDON LONDON WC1E 6BT ENGLAND UNIV MARYLAND,DEPT PHYS COLL PK MD 20742 UNIV MONTREAL,PHYS NUCL LAB MONTREAL H3C 3J7 PQ CANADA UNIV OREGON,DEPT PHYS EUGENE OR 97403 RUTHERFORD APPLETON LAB DIDCOT OX11 0QX OXON ENGLAND SPP,DAPNIA F-91191 GIF SUR YVETTE FRANCE TECHNION ISRAEL INST TECHNOL,DEPT PHYS IL-32000 HAIFA ISRAEL TEL AVIV UNIV,DEPT PHYS & ASTRON IL-69978 TEL AVIV ISRAEL UNIV TOKYO,INT CTR ELEMENTARY PARTICLE PHYS TOKYO 113 JAPAN UNIV TOKYO,DEPT PHYS TOKYO 113 JAPAN KOBE UNIV KOBE 657 JAPAN BRUNEL UNIV UXBRIDGE UB8 3PH MIDDX ENGLAND WEIZMANN INST SCI,DEPT PARTICLE PHYS IL-76100 REHOVOT ISRAEL UNIV HAMBURG,DESY,INST EXPTL PHYS 2 D-22607 HAMBURG GERMANY UNIV VICTORIA,DEPT PHYS VICTORIA V8W 3P6 BC CANADA UNIV BRITISH COLUMBIA,DEPT PHYS VANCOUVER V6T 1Z1 BC CANADA UNIV ALBERTA,DEPT PHYS EDMONTON T6G 2J1 AB CANADA DUKE UNIV,DEPT PHYS DURHAM NC 27708 UNIV AACHEN,INST PHYS 3 D-52056 AACHEN GERMANY TRIUMF VANCOUVER V6T 2A3 BC CANADA SHINSHU UNIV MATSUMOTO NAGANO 390 JAPAN
Titolo Testata:
Physics letters. Section B
fascicolo: 3-4, volume: 320, anno: 1994,
pagine: 417 - 430
SICI:
0370-2693(1994)320:3-4<417:MATCIM>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
HADRON-HADRON-COLLISIONS; ELECTRON-POSITRON-ANNIHILATION; CHARGED-PARTICLE MULTIPLICITY; ANTI-PROTON COLLIDER; E+E ANNIHILATION; MONTE-CARLO; MULTIPARTICLE PRODUCTION; PETRA ENERGIES; ISR ENERGIES; DEPENDENCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
53
Recensione:
Indirizzi per estratti:
Citazione:
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

Abstract

on charged multiplicity of the mean transverse momentum of charged hadrons, measured with respect to the thrust axis. The study was performed on a high statistics sample of Z(0) decays to multihadronic final states 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 topologies 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 interpreted in terms of fragmentation properties of different quark flavours and of the production and decay of resonances. We have compared theobserved effects with the predictions of QCD-based parton shower models. The data are well described by the Jetset 7.3 Monte Carlo, while Herwig 5.5 does not satisfactorily reproduce the measured correlations. Hard gluon radiation is also shown to be responsible for the observedincrease of about 40% in the mean transverse momentum of produced charged hadrons in the multiplicity range from 10 to 30. The comparison with 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.

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Documento generato il 25/11/20 alle ore 04:45:17