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Titolo:
MEASUREMENTS OF THE B-QUARK FORWARD-BACKWARD ASYMMETRY AROUND THE Z(0) PEAK USING JET CHARGE AND VERTEX CHARGE
Autore:
ACKERSTAFF K; 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; 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; 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; 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 EDE; DOUCET M; DUCHOVNI E; DUCKECK G; DUERDOTH IP; EATOUGH D; EDWARDS JEG; ESTABROOKS PG; EVANS HG; EVANS M; FABBRI F; FANTI M; FATH P; FAUST AA; FIEDLER F; FIERRO M; FISCHER HM; FOLMAN R; FONG DG; FOUCHER M; 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; 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; HUGHESJONES RE; 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; JONES RWL; JOST U; JOVANOVIC P; JUNK TR; KARLEN D; KAWAGOE K; KAWAMOTO T; KEELER RK; KELLOGG RG; KENNEDY BW; KIRK J; KLUTH S; KOBAYASHI T; KOBEL M; KOETKE DS; KOKOTT TP; KOLREP M; KOMAMIYA S; 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; MACCHIOLO A; MACPHERSON 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; NAGAI K; NAKAMURA I; NEAL HA; NELLEN B; NIJJHAR B; NISIUS R; ONEALE SW; OAKHAM FG; ODORICI F; OGREN HO; OLDERSHAW NJ; OMORI T; 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; 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; SCHUMACHER M; SCHUTZ P; 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; STEIERT M; STEPHENS K; STEUERER J; STOCKHAUSEN B; STROM D; SZYMANSKI P; TAFIROUT R; TALBOT SD; TANAKA S; TARAS P; TAREM S; THIERGEN M; THOMSON MA; VONTORNE E; TOWERS S; TRIGGER I; 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; WELLS PS; WERMES N; WHITE JS; WILKENS B; WILSON GW; WILSON JA; WOLF G; WOTTON S; WYATT TR; YAMASHITA S; YEKUTIELI G; ZACEK V; ZERZION D;
Indirizzi:
UNIV BIRMINGHAM,SCH PHYS & SPACE RES BIRMINGHAM B15 2TT W MIDLANDS ENGLAND UNIV BOLOGNA,DIPARTIMENTO FIS I-40126 BOLOGNA ITALY IST NAZL FIS NUCL I-40126 BOLOGNA ITALY UNIV BONN,INST PHYS D-53115 BONN GERMANY UNIV CALIF RIVERSIDE,DEPT PHYS RIVERSIDE CA 92521 UNIV CAMBRIDGE,CAVENDISH LAB CAMBRIDGE CB3 0HE ENGLAND CARLETON UNIV,DEPT PHYS,OTTAWA CARLETON INST PHYS OTTAWA ON K1S 5B6 CANADA CARLETON UNIV,CTR RES PARTICLE PHYS OTTAWA ON K1S 5B6 CANADA CERN,EUROPEAN ORG PARTICLE PHYS CH-1211 GENEVA 23 SWITZERLAND UNIV CHICAGO,ENRICO FERMI INST CHICAGO IL 60637 UNIV CHICAGO,DEPT PHYS CHICAGO IL 60637 UNIV FREIBURG,FAK PHYS D-79104 FREIBURG GERMANY UNIV HEIDELBERG,INST PHYS D-69120 HEIDELBERG GERMANY INDIANA UNIV,DEPT PHYS BLOOMINGTON IN 47405 UNIV LONDON QUEEN MARY & WESTFIELD COLL LONDON E1 4NS ENGLAND RHEIN WESTFAL TH AACHEN,INST PHYS 3 D-52056 AACHEN GERMANY UNIV COLL LONDON LONDON WC1E 6BT ENGLAND UNIV MANCHESTER,SCHUSTER LAB,DEPT PHYS MANCHESTER M13 9PL LANCS ENGLAND UNIV MARYLAND,DEPT PHYS COLLEGE PK MD 20742 UNIV MONTREAL,NUCL PHYS LAB MONTREAL PQ H3C 3J7 CANADA UNIV OREGON,DEPT PHYS EUGENE OR 97403 RUTHERFORD APPLETON LAB DIDCOT OX11 0QX OXON ENGLAND CENS,CEA,DAPNIA,SPP F-91191 GIF SUR YVETTE FRANCE TECHNION ISRAEL INST TECHNOL,DEPT PHYS IL-32000 HAIFA ISRAEL TEL AVIV UNIV,DEPT PHYS & ASTRON IL-69978 TEL AVIV ISRAEL UNIV TOKYO,DEPT PHYS TOKYO 113 JAPAN UNIV TOKYO,INT CTR ELEMENTARY PARTICLE PHYS TOKYO 113 JAPAN KOBE UNIV KOBE HYOGO JAPAN BRUNEL UNIV UXBRIDGE UB8 3PH MIDDX ENGLAND WEIZMANN INST SCI,PARTICLE PHYS DEPT IL-76100 REHOVOT ISRAEL UNIV HAMBURG,DESY,INST EXPT PHYS 2 D-22607 HAMBURG GERMANY UNIV VICTORIA,DEPT PHYS VICTORIA BC V8W 3P6 CANADA UNIV BRITISH COLUMBIA,DEPT PHYS VANCOUVER BC V6T 1Z1 CANADA UNIV ALBERTA,DEPT PHYS EDMONTON AB T6G 2J1 CANADA DUKE UNIV,DEPT PHYS DURHAM NC 27708 RES INST PARTICLE & NUCL PHYS H-1525 BUDAPEST HUNGARY INST NUCL RES H-4001 DEBRECEN HUNGARY UNIV MUNICH,SEKT PHYS D-85748 GARCHING GERMANY TRIUMF VANCOUVER BC V6T 2A3 CANADA LAJOS KOSSUTH UNIV,DEPT EXPT PHYS DEBRECEN HUNGARY
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 3, volume: 75, anno: 1997,
pagine: 385 - 396
SICI:
0170-9739(1997)75:3<385:MOTBFA>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
LUND MONTE-CARLO; MICROVERTEX DETECTOR; E+E-PHYSICS; LIFETIME; FRAGMENTATION; LEPTONS; LEP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
K. Ackerstaff et al., "MEASUREMENTS OF THE B-QUARK FORWARD-BACKWARD ASYMMETRY AROUND THE Z(0) PEAK USING JET CHARGE AND VERTEX CHARGE", Zeitschrift fur Physik. C, Particles and fields, 75(3), 1997, pp. 385-396

Abstract

The b quark forward-backward asymmetry has been measured using approximately four million hadronic Z(0) decays collected with the OPAL detector at LEP. Both jet charge and vertex charge were used to estimate whether the b quark was produced in the forward or backward thrust hemisphere. The measured values corrected to the hadron-level thrust axis are A(FB)(b) = 0.041 +/-0.021 +/-0.002 root s = 89.34 GeV A(FB)(b) = 0.0994 +/-0.0052 +/-0.0044 root s = 91.21 GeV A(FB)(b) = 0.145 +/-0.017+/-0.007 root s = 92.91 GeV where in each case the first error is statistical and the second systematic. Within the framework of the Standard Model these measurements correspond to an effective weak mixing angle of sin(2) theta(W)(eff,e) = 0.2308 +/- 0.0013. The measurements arein agreement with the Standard Model and other measurements at LEP.

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Documento generato il 01/12/20 alle ore 07:55:24