A STUDY OF CHARM HADRON-PRODUCTION IN Z(0)-]C(C)OVER-BAR AND Z(0)-]B(B)OVER-BAR DECAYS AT LEP

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 BEESTON C BEHNKE T BELL AN BELL KW BELLA G BENTVELSEN S BERLICH P BETHKE S BIEBEL O BLOBEL V BLOODWORTH IJ BLOOMER JE BOCK P BOSCH HM BOUTEMEUR M BOUWENS BT BRAIBANT S 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 COHEN I CONBOY JE COOKE OC CUFFIANI M DADO S DALLAPICCOLA C DALLAVALLE GM DEJONG S DELPOZO LA DESCH K DIXIT MS SILVA EDE DOUCET M DUCHOVNI E DUCKECK G DUERDOTH IP EDWARDS JEG ESTABROOKS PG EVANS HG EVANS M FABBRI F FATH P FIEDLER F FIERRO 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 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 GRUWE M 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 HOARE J HOBSON PR HOMER RJ HONMA AK HORVATH D HOWARD R HUGHESJONES RE HUTCHCROFT DE IGOKEMENES P IMRIE DC INGRAM MR JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JOLY A JONES CR JONES G JONES M JONES RWL JOST U JOVANOVIC P JUNK TR KARLEN D KAWAGOE K KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KING BJ 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 LAUTENSCHLAGER SR LAYTER JG LAZIC D LEE AM LEFEBVRE E LELLOUCH D LETTS J LEVINSON L LEWIS C LLOYD SL LOEBINGER FK LONG GD 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 MCPHERSON RA 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 NEAL HA NELLEN B NIJJHAR B NISIUS R ONEALE SW OAKHAM FG ODORICI F OGREN HO OMORI T OREGLIA MJ ORITO S PALINKAS J PANSART JP PASZTOR G PATER JR PATRICK GN PEARCE MJ PETZOLD S PFEIFENSCHNEIDER P PILCHER JE PINFOLD J PLANE DE POFFENBERGER P POLI B POSTHAUS A PRZYSIEZNIAK H REES DL RIGBY D ROBINS SA RODNING N RONEY JM ROOKE A ROS E ROSSI AM ROSVICK M ROUTENBURG P ROZEN Y RUNGE K RUNOLFSSON O RUPPEL U RUST DR RYLKO R SARKISYAN EKG SASAKI M SBARRA C SCHAILE AD SCHAILE O SCHARF F SCHARFFHANSEN P SCHENK P SCHMITT B SCHMITT S SCHRODER M SCHULTZCOULON HC SCHULZ M SCHUTZ P SCOTT WG SHERAS 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 STEIERT M STEPHENS K STEUERER J STOCKHAUSEN B STROM D STRUMIA F SZYMANSKI P TAFIROUT R TALBOT SD TANAKA S TARAS P TAREM S TECCHIO M THIERGEN M THOMSON MA VONTORNE E TOWERS S TSCHEULIN M TSUKAMOTO T TSUR E TURCOT AS TURNERWATSON MF UTZAT P VANKOOTEN R VASSEUR G VERZOCCHI M VIKAS P VINCTER M VOKURKA EH WACKERLE F WAGNER A WARD CP WARD DR WARD JJ WATKINS PM WATSON AT WATSON NK WEBER P WELLS PS WERMES N WHITE JS WILKENS B WILSON GW WILSON JA WLODEK T WOLF G WOTTON S WYATT TR YAMASHITA S YEKUTIELI G ZACEK V
Citation
G. Alexander et al., A STUDY OF CHARM HADRON-PRODUCTION IN Z(0)-]C(C)OVER-BAR AND Z(0)-]B(B)OVER-BAR DECAYS AT LEP, Zeitschrift fur Physik. C, Particles and fields, 72(1), 1996, pp. 1-16
Citations number
56
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
72
Issue
1
Year of publication
1996
Pages
1 - 16
Database
ISI
SICI code
0170-9739(1996)72:1<1:ASOCHI>2.0.ZU;2-V
Abstract
Measurements of the production of the weakly decaying charmed hadrons: D-0, D+, D-s(+) and Lambda(c)(+) in both Z(0) --> <c(c)over bar> and Z(0) --> <b(b)over bar> events are reported. By summing the partial co ntributions from each of these states we measure the partial width for Z(0) decays into a <c(c)over bar> pair as: Gamma(<(cc)over bar>)/Gamm a(had) = 0.167 +/- 0.011(stat) +/- 0.011(sys) +/- 0.005(br) where the errors are statistical, systematic and due to the uncertainties in the charmed hadron branching ratios, respectively. The relative productio n rates for the formation of the charmed hadrons from primary c quarks is found to be in good agreement with continuum e(+)e(-) data at root s approximate to 10 GeV. The measured rates of these four charmed had rons in b hadron decays is found to account for 1.061 +/- 0.045(stat) +/- 0.060(sys) +/- 0.037(br) c or (c) over bar quarks per b hadron dec ay. Comparison of the relative rates of the different charmed hadron s pecies with Gamma(4S) data indicates higher rates for D-s(+) and Lambd a(c)(+) hadrons and lower rates of D-0 and D+ mesons as expected due t o the different mixture of b hadrons.