MEASUREMENT OF THE LONGITUDINAL, TRANSVERSE AND ASYMMETRY FRAGMENTATION FUNCTIONS AT LEP

Authors
AKERS R ALEXANDER G ALLISON J ALTEKAMP N AMETEWEE K ANDERSON KJ ANDERSON S ARCELLI S ASAI S AXEN D AZUELOS G BALL AH BARBERIO E BARLOW RJ BARTOLDUS R BATLEY JR BEAUDOIN G BETHKE S BECK A BECK GA BEESTON C BEHNKE T BELL KW BELLA G BENTVELSEN S BERLICH P BECHTLUFT J BIEBEL O BLOODWORTH IJ BOCK P BOSCH HM BOUTEMEUR M BRAIBANT S BRIGHTTHOMAS P BROWN RM BUIJS A BURCKHART HJ BURGIN R BURGARD C CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLESWORTH C CHARLTON DG CHU SL CLARKE PEL CLAYTON JC CLOWES SG COHEN I CONBOY JE COOKE OC CUFFIANI M DADO S DALLAPICCOLA C DALLAVALLE GM DARLING C DEJONG S DELPOZO LA DENG H DIXIT MS SILVA EDE DUBOSCQ JE DUCHOVNI E DUCKECK G DUERDOTH IP DUNWOODY UC EDWARDS JEG ESTABROOKS PG EVANS HG FABBRI F FABBRO B FANTI M FATH P FIEDLER F FIERRO M FINCKEKEELER M FISCHER HM FOLMAN R FONG DG FOUCHER M FUKUI H FURTJES A GAGNON P 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 GROSS E HANSON GG HANSROUL M HAPKE M HARGROVE CK HART PA HARTMANN C HAUSCHILD M HAWKES VM HAWKINGS R HEMINGWAY RJ HERTEN G HEUER RD HILL JC HILLIER SJ HILSE T HOBSON PR HOCHMAN D HOMER RJ HONMA AK HOWARD R HUGHESJONES RE HUTCHCROFT DE IGOKEMENES P IMRIE DC JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JOLY A JONES M JONES RWL JOVANOVIC P KARLEN D KANZAKI J KAWAGOE K KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KING BJ KING J KIRK J KLUTH S KOBAYASHI T KOBEL M KOETKE DS KOKOTT TP KOMAMIYA S KOWALEWSKI R KRESS T KREIGER P VONKROGH J KYBERD P LAFFERTY GD LAFOUX H LAHMANN R LAI WP LANSKE D LAUBER J LAYTER JG LEE AM LEFEBVRE E LELLOUCH D LETTS J LEVINSON L LLOYD SL LOEBINGER FK LONG GD LORAZO B LOSTY MJ LUDWIG J LUIG A MALIK A MANNELLI M MARCELLINI S MARKUS C MARTIN AJ MARTIN JP MASHIMO T MATTHEWS W MATTIG P MCKENNA J MCKIGNEY EA MCMAHON TJ MCNAB AI MEIJERS F MENKE S MERRITT FS MES H MICHELINI A MIKENBERG G MILLER DJ MIR R MOHR W MONTANARI A MORI T MORII M MULLER U NELLEN B NIJJHAR B ONEALE SW OAKHAM FG ODORICI F OGREN HO OLDERSHAW NJ ORAM CJ OREGLIA MJ ORITA S PALMONARI F PANSART JP PATRICK GN PEARCE MJ PHILLIPS PD PILCHER JE PINFOLD J PLANE DE POFFENBERGER P POLI B POSTHAUS A PRITCHARD TW PRZYSIEZNIAK H REDMOND MW REES DL RIGBY D RISON MG ROBINS SA RODNING N RONEY JM ROS E ROSSI AM ROSVICK M ROUTENBURG P ROZEN Y RUNGE K RUNOLFSSON O RUST DR SASAKI M SBARRA C SCHAILE AD SCHAILE O SCHARF F SCHARFHANSEN P SCHENK P SCHMITT B SCHRODER M SCHULTZCOULON HC SCHUTZ P SCHULZ M 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 SOLDNERREMBOLD S SPRINGER RW SPROSTON M STAHL A STARKS M STEGMANN C STEPHENS K STEUERER J STOCKHAUSEN B STROM D SZYMANSKI P TAFIROUT R TARAS P TAREM S TECCHIO M TEIXEIRADIAS P TESCH N THOMSON MA VONTORNE E TOWERS S TSCHEULIN M TSUKAMOTO T TURCOT AS TURNERWATSON MF UTZAT P VANKOOTEN R VASSEUR G VIKAS P VINCTER M WACKERLE F WAGNER A WAGNER DL WARD CP WARD DR WARD JJ WATKINS PM WATSON AT WATSON NK WEBER P WELLS PS WERMES N WILKENS B WILSON GW WILSON JA WLODEK T WOLF G WOTTON S WYATT TR YEKUTIELI G ZACEK V ZEUNER W ZORN GT
Citation
R. Akers et al., MEASUREMENT OF THE LONGITUDINAL, TRANSVERSE AND ASYMMETRY FRAGMENTATION FUNCTIONS AT LEP, Zeitschrift fur Physik. C, Particles and fields, 68(2), 1995, pp. 203-213
Citations number
32
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
68
Issue
2
Year of publication
1995
Pages
203 - 213
Database
ISI
SICI code
0170-9739(1995)68:2<203:MOTLTA>2.0.ZU;2-6
Abstract
The fragmentation function for the process e(+)e(-) --> h + X, where h represents a hadron, may be decomposed into transverse, longitudinal and asymmetric contributions by analysis of the distribution of polar production angles. A number of new tests of QCD have been proposed usi ng these fragmentation functions, but so far no data have been publish ed on the separate components. We have performed such a separation usi ng data on char,oed particles from hadronic Z(0) decays at OPAL, and h ave compared the results with the predictions of QCD. By integrating t he fragmentation functions, we determine the average charged particle multiplicity to be <(n(ch))over bar> = 21.05 +/- 0.20. The longitudina l to total cross-section ratio is determined to be sigma(L)/sigma(tot) = 0.057 +/- 0.005. From the longitudinal fragmentation function we ar e able to extract the gluon fragmentation function. The connection bet ween the asymmetry fragmentation function and electroweak asymmetries is discussed.