A STUDY OF B-MESON OSCILLATIONS USING HADRONIC Z(0) DECAYS CONTAININGLEPTONS

Authors
ACKERSTAFF K ALEXANDER G ALLISON J ALTEKAMP N ANDERSON KJ ANDERSON S ARCELLI S ASAI S AXEN D AZUELOS G BALL AH BARBERIO E BARLOW RJ BARTOLDUS R BATLEY JR BAUMANN S BECHTLUFT J BEESTON C BEHNKE T BELL AN BELL KW BELLA G BENTVELSEN S BERLICH P BETHKE S BIEBEL O BIGUZZI A BIRD SD BLOBEL V BLOODWORTH IJ BLOOMER JE BOBINSKI M BOCK P BONACORSI D BOUTEMEUR M BOUWENS BT BRAIBANT S BRIGLIADORI L BROWN RM BURCKHART HJ BURGARD C BURGIN R CAPILUPPI P CARNEGIE RK CARTER AA CARTER JR CHANG CY CHARLTON DG CHRISMAN D 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 EDCE DOUCET M DUCHOVNI E DUCKECK G DUERDOTH IP EATOUGH D EDWARDS JEG ESTABROOKS PG EVANS HG EVANS M FABBRI F FANTI M FAUST AA FIEDLER F FIERRO M FISCHER HM FLECK I FOLMAN R FONG DG FOUCHER M FURTJES A FUTYAN DI GAGNON P GARY JW GASCON J GASCONSHOTKIN SM GEDDES NI GEICHGIMBEL C GERALIS T GIACOMELLI G GIACOMELLI P GIACOMELLI R GIBSON V GIBSON WR GINGRICH DM GLENZINSKI D GOLDBERG J GOODRICK MJ GORN W GRANDI C GROSS E GRUNHAUS J GRUWE M HAJDU C HANSON GG HANSROUL M HAPKE M HARGROVE CK HART PA HARTMANN C HAUSCHILD M HAWKES CM HAWKINGS R HEMINGWAY RJ HERNDON M HERTEN G HEUER RD HILDRETH MD HILL JC HILLIER SJ HILSE T HOBSON PR HOMER RJ HONMA AK HORVATH D HOWARD R HUTCHCROFT DE IGOKEMENES P IMRIE DC INGRAM MR ISHII K JAWAHERY A JEFFREYS PW JEREMIE H JIMACK M JOLY A JONES CR JONES G JONES M JOST U JOVANOVIC P JUNK TR KARLEN D KARTVELISHVILI V KAWAGOE K KAWAMOTO T KEELER RK KELLOGG RG KENNEDY BW KIRK J KLIER A KLUTH S KOBAYASHI T KOBEL M KOETKE DS KOKOTT TP KOLREP M KOMAMIYA S KRESS T KRIEGER P VONKROGH J KYBERD P LAFFERTY GD LAHMANN R LAI WP LANSKE D LAUBER J LAUTENSCHLAGER SR LAYTER JG LAZIC D LEE AM LEFEBVRE E LELLOUCH D LETTS J LEVINSON L LLOYD SL LOEBINGER FK LONG GD LOSTY MJ LUDWIG J MACCHIOLO A MACPHERSON A MANNELLI M MARCELLINI S MARKUS C MARTIN AJ MARTIN JP MARTINEZ G MASHIMO T MATTIG P MCDONALD WJ MCKENNA J MCKIGNEY EA MCMAHON TJ MCPHERSON RA MEIJERS F MENKE S MERRITT FS MES H MEYER J MICHELINI A MIKENBERG G MILLER DJ MINCER A MIR R MOHR W MONTANARI A MORI T MORII M MULLER U NAGAI K NAKAMURA I NEAL HA NELLEN B NISIUS R ONEALE SW OAKHAM FG ODORICI F OGREN HO OLDERSHAW NJ OREGLIA MJ ORITO S PALINKAS J PASZTOR G PATER JR PATRICK GN PATT J PEARCE MJ PETZOLD S PFEIFENSCHNEIDER P PILCHER JE PINFOLD J PLANE DE POFFENBERGER P POLI B POSTHAUS A PRZYSIEZNIAK H REES DL RIGBY D ROBERTSON S 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 SACHS K SAEKI T SARKISYAN EKG SBARRA C SCHAILE AD SCHAILE O SCHARF F SCHARFFHANSEN P SCHENK P SCHIECK J SCHLEPER P SCHMITT B SCHMITT S SCHONING A SCHRODER M SCHULTZCOULON HC SCHULZ M SCHUMACHER M SCHWICK C SCOTT WG SHEARS TG SHEN BC SHEPHERDTHEMISTOCLEOUS CH SHERWOOD P SIROLI GP SITTLER A SKILLMAN A SKUJA A SMITH AM SNOW GA SOBIE R SOLDNERREMBOLD S SPRINGER RW SPROSTON M STEPHENS K STEUERER J STOCKHAUSEN B STOLL K STROM D SZYMANSKI P TAFIROUT R TALBOT SD TANAKA S TARAS P TAREM S TEUSCHER R THIERGEN M THOMSON MA VONTORNE E TOWERS S TRIGGER I TSUR E TURCOT AS TURNERWATSON MF UTZAT P VANKOOTEN R VERZOCCHI M VIKAS P VOKURKA EH VOSS H WACKERLE F WAGNER A WARD CP WARD DR WATKINS PM WATSON AT WATSON NK WELLS PS WERMES N WHITE JS WILKENS B WILSON GW WILSON JA WOLF G WYATT TR YAMASHITA S YEKUTIELI G ZACEK V ZERZION D
Citation
K. Ackerstaff et al., A STUDY OF B-MESON OSCILLATIONS USING HADRONIC Z(0) DECAYS CONTAININGLEPTONS, Zeitschrift fur Physik. C, Particles and fields, 76(3), 1997, pp. 401-415
Citations number
47
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
76
Issue
3
Year of publication
1997
Pages
401 - 415
Database
ISI
SICI code
0170-9739(1997)76:3<401:ASOBOU>2.0.ZU;2-F
Abstract
An event sample enriched in semileptonic decays of b hadrons is select ed using an inclusive lepton selection from approximately 3.0 million hadronic Z(0) decays collected with the OPAL detector. This sample is used to investigate B meson oscillations by reconstructing a proper de cay time for the parent of each lepton, using a jet charge method to e stimate the production flavour of this parent, and using the lepton ch arge to tag the decay flavour. We measure the mass difference between the two B-d(0) mass eigenstates ta-m(d)=0.444plusminus0.029(-0.017)(+0 .020)ps(-1). For the B-s(0) system, we find upper-delta-m(s)>3.1ps(-1) at the 95% confidence level. This limit varies only a little if alter native limit setting approaches are adopted. Regions at higher upper-d elta-m(s) values are also excluded with some methods for setting the l imit. By studying the charge symmetry of the B-d(0) mixing structure, we are able to constrain possible CP and CPT violating effects. We mea sure the CP violation parameter Re-epsilon(B)=-0.006plusminus0.010plus minus0.006 and the indirect CPT violating parameter Im-delta(B)=-0.020 plusminus0.016plusminus0.006. If we invoke CPT symmetry, then we obtai n Re-epsilon(B)=0.002plusminus0.007plusminus0.003.