MEASUREMENT OF THE AVERAGE B-HADRON LIFETIME IN Z(0) DECAYS

Authors
ACTON PD AKERS R ALEXANDER G ALLISON J ANDERSON KJ ARCELLI S ASTBURY A AXEN D AZUELOS G BAINES JTM BALL AH BANKS J BARLOW RJ BARNETT S BATOLDUS 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 BREUKER H 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 DALLAVALLE GM DEJONG S DELPOZO LA DENG H DIECKMANN A DITTMAR M DIXIT MS SILVA EDE 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 GIACOMELLI G 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 HATTERSLEY PM HAUSCHILD M HAWKES CM HEFLIN E HEMINGWAY RJ HERTEN G HEUER RD HILL JC HILLIER SJ HILSE T HINSHAW DA HOBBS JD 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 KLUTH S KOBAYASHI T KOETKE DS KOKOTT TP KOMAMIYA S KOPKE L KRAL JF KOWALEWSKI R VONKROGH J KROLL J KUWANO M KYBERD P LAFFERTY GD LAFOUX H LAHMANN R LAMARCHE F LAYTER JG LEBLANC P LEE AM LEHTO MH LELLOUCH D LEROY C LETTS J LEVEGRUN S LEVINSON L 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 MENSZNER D MERRITT FS MES H MICHELINI A MIDDLETON RP MIKENBERG G MILDENBERGER J MILLER DJ MIR R MOHR 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 PANZERSTEINDEL B PASCHIEVICI P PATRICK GN PAZJAOSHVILI N PEARCE MJ PFISTER P PILCHER JE PINFOLD J PITMAN D PLANE DE POFFENBERGER P POLI B POULADDEJ A PRITCHARD TW PRZYSIEZNIAK H QUAST G REDMOND MW REES DL RICHARDS GE 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 SCHARFFHANSEN P SCHENK P SCHMITT B VONDERSCHMITT H SCHRODER 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 VIRTUE CJ WAGNER A WAGNER DL WAHL C WARD CP WARD DR WATKINS PM WATSON AT WATSON NK WEBER M 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
Pd. Acton et al., MEASUREMENT OF THE AVERAGE B-HADRON LIFETIME IN Z(0) DECAYS, Zeitschrift fur Physik. C, Particles and fields, 60(2), 1993, pp. 217-228
Citations number
46
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
60
Issue
2
Year of publication
1993
Pages
217 - 228
Database
ISI
SICI code
0170-9739(1993)60:2<217:MOTABL>2.0.ZU;2-V
Abstract
A sample of 2610 electron candidates and 2762 muon candidates identifi ed in hadronic Z0 decays has been used to measure the average b hadron lifetime. These data were recorded with the OPAL detector during 1990 and 1991. Maximum likelihood fits to the distributions of the lepton impact parameters yield an average b hadron lifetime of tau(b) = 1523 +/- 34 +/- 38 fs, where the first error is statistical and the second systematic. This result is a weighted average over the semileptonic br anching fractions and production rates of the b hadrons produced in Z0 decays.