J PSI AND PSI' PRODUCTION IN HADRONIC Z(0) DECAYS/

Authors
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 BECHTLUFT J BECK GA BEESTON C BEHNKE T BELL AN BELL KW BELLA G BENTVELSEN S BERLICH P BETHKE S BIEBEL O BLOODWORTH IJ BLOOMER JE BOCK P BOSCH HM BOUTEMEUR M BOUWENS BT BRAIBANT S BRIGHTTHOMAS P BROWN RM BURCKHART HJ BURGARD C BURGIN R CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLESWORTH C CHARLTON DG CHRISMAN D CHU SL CLARKE PEL CLOWES SG COHEN I CONBOY JE COOKE OC CUFFIANI M DADO S DALLAPICCOLA C DALLAVALLE GM DARLING C DEJONG S DELPOZO LA DIXIT MS SILVA EDCE DUCHOVNI E DUCKECK G DUERDOTH IP DUNWOODY UC EDWARDS JEG ESTABROOKS PG EVANS HG FABBRI F FABBRO B 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 GASCONSHOTKIN SM GEDDES NI GEICHGIMBEL C GENSLER SW GENTIT FX GERALIS T GIACOMELLI G GIACOMELLI P GIACOMELLI R GIBSON V GIBSON WR GINGRICH DM GOLDBERG J GOODRICK MJ GORN W GRANDI C GROSS E HAJDU C HANSON GG HANSROUL M HAPKE M HARGROVE CK HART PA HARTMANN C HAUSCHILD M HAWKES CM HAWKINGS R HEMINGWAY RJ HERTEN G HEUER RD HILDRETH MD HILL JC HILLIER SJ HILSE T HOBSON PR HOCHMAN D HOMER RJ HONMA AK HORVATH D HOWARD R HUGHESJONES RE HUTCHCROFT DE IGOKEMENES P IMRIE DC JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JOLY A JONES M JONES RWL JOST U JOVANOVIC P KARLEN D KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KINGS BJ KING J KIRK J KLUTH S KOBAYASHI T KOBEL M KOETKE DS KOKOTT TP KOMAMIYA S KOWALEWSKI R KRESS T KRIEGER 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 LEWIS C 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 MARTINEZ G MASHIMO T MATTHEWS W MATTIG P MCDONALD WJ MCKENNA J MCKIGNEY EA MCMAHON TJ MCNAB AI MEIJERS F MENKE S MERRITT FS MES H MEYER J MICHELINI A MIKENBERG G MILLER DJ MIR R MOHR W MONTANARI A MORI T MORII M MULLER U NELLEN B NIJJHAR B NISIUS R ONEALE SW OAKHAM FG ODORICI F OGREN HO OLDERSHAW NJ OMORI T ORAM CJ OREGLIA MJ ORITO S PALAZZO M PALINKAS J PALMONARI FM PANSART JP PASZTOR G PATER JR PATRICK GN PEARCE MJ PHILLIPS PD PILCHER JE PINFOLD J PLANE DE POFFENBERGER P POLI B POSTHAUS A PRITCHARD TW PRZYSIEZNIAK H 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 RYLKO R SARKISYAN EKG SASAKI M SBARRA C SCHAILE AD SCHAILE O SCHARF F SCHARFFHANSEN P SCHENK P SCHMITT B SCHRODER M SCHULTZCOULON HC SCHULZ M SCHUTZ P SCHWIENING J SCOTT WG SHEARS TG SHEN BC SHEPHERDTHEMISTOCLEOUS CH SHERWOOD P SIROLI GP SITTLER A 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 STRUMIA F SZYMANSKI P TAFIROUT R TAKEDA H TARAS P TAREM S TECCHIO M TESCH N THOMSON MA VONTORNE E TOWERS S TSCHEULIN M TSUKAMOTO T TSUR E TURCOT AS TURNERWATSON MF UTZAT P VANKOOTEN R VASSEUR G VIKAS P VINCTER M VOKURKA EH 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 XELLA S YAMASHITA S YEKUTIELI G ZACEK V
Citation
G. Alexander et al., J PSI AND PSI' PRODUCTION IN HADRONIC Z(0) DECAYS/, Zeitschrift fur Physik. C, Particles and fields, 70(2), 1996, pp. 197-209
Citations number
53
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
70
Issue
2
Year of publication
1996
Pages
197 - 209
Database
ISI
SICI code
0170-9739(1996)70:2<197:JPAPPI>2.0.ZU;2-2
Abstract
The production of J/psi mesons in Z(0) decays is studied using 3.6 mil lion hadronic events recorded by the OPAL detector at LEP. The inclusi ve Z(0) to J/psi and b-quark to J/psi branching ratios are measured fr om the total yield of J/psi mesons, identified from their decays into lepton pairs. The J/psi momentum distribution is used to study the fra gmentation of b-quarks. The production rate of psi' mesons, identified from their decays into a J/psi and a pi(+)pi(-) pair, is measured as well. The following results are obtained: Br(Z(0)-->J/psi X) = (3.9 +/ - 0.2 +/- 0.3). 10(-3) and Br(Z(0)-->psi' X) = (1.6 +/- 0.3 +/- 0.2). 10(-3), where the first error is statistical and the second systematic . Finally the J/psi sample is used to reconstruct exclusive b-hadron d ecays and calculate the corresponding b-hadron branching ratios and ma sses.