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Titolo:
A PRECISE MEASUREMENT OF GAMMA-Z-]B(B)BAR GAMMA-Z-] HADRONS/
Autore:
BUSKULIC D; DEBONIS I; DECAMP D; GHEZ P; GOY C; LEES JP; MINARD MN; PIETRZYK B; ARIZTIZABAL F; COMAS P; CRESPO JM; DELFINO M; EFTHYMIOPOULOS I; FERNANDEZ E; FERNANDEZBOSMAN M; GAITAN V; GARRIDO L; MATTISON T; PACHECO A; PADILLA C; PASCUAL A; CREANZA D; DEPALMA M; FARILLA A; IASELLI G; MAGGI G; NATALI S; NUZZO S; QUATTROMINI M; RANIERI A; RASO G; ROMANO F; RUGGIERI F; SELVAGGI G; SILVESTRIS L; TEMPESTA P; ZITO G; CHAI Y; HU H; HUANG D; HUANG X; LIN J; WANG T; XIE Y; XU D; XU R; ZHANG J; ZHANG L; ZHAO W; BLUCHER E; BONVICINI G; BOUDREAU J; CASPER D; DREVERMANN H; FORTY RW; GANIS G; GAY C; HAGELBERG R; HARVEY J; HILGART J; JACOBSEN R; JOST B; KNOBLOCH J; LEHRAUS I; LOHSE T; MAGGI M; MARKOU C; MARTINEZ M; MATO P; MEINHARD H; MINTEN A; MIOTTO A; MIQUEL R; MOSER HG; PALAZZI P; PATER JR; PERLAS JA; PUSZTASZERI JF; RANJARD F; REDLINGER G; ROLANDI L; ROTHBERG J; RUAN T; SAICH M; SCHLATTER D; SCHMELLING M; SEFKOW F; TEJESSY W; TOMALIN IR; VEENHOF R; WACHSMUTH H; WASSERBAECH S; WIEDENMANN W; WILDISH T; WITZELING W; WOTSCHACK J; AJALTOUNI Z; BADAUD F; BARDADINOTWINOWSKA M; ELFELLOUS R; FALVARD A; GAY P; GUICHENEY C; HENRARD P; JOUSSET J; MICHEL B; MONTRET JC; PALLIN D; PERRET P; PODLYSKI F; PRORIOL J; PRULHIERE F; SAADI F; FEARNLEY T; HANSEN JB; HANSEN JD; HANSEN JR; HANSEN PH; MOLLERUD R; NILSSON BS; KYRIAKIS A; SIMOPOULOU E; SIOTIS I; VAYAKI A; ZACHARIADOU K; BADIER J; BLONDEL A; BONNEAUD G; BRIENT JC; FOUQUE G; ORTEU S; ROUGE A; RUMPF M; TANAKA R; VERDERI M; VIDEAU H; CANDLIN DJ; PARSONS MI; VEITCH E; FOCARDI E; MONETA L; PARRINI G; CORDEN M; GEORGIOPOULOS C; IKEDA M; LEVINTHAL D; ANTONELLI A; BALDINI R; BENCIVENNI G; BOLOGNA G; BOSSI F; CAMPANA P; CAPON G; CERUTTI F; CHIARELLA V; DETTORREPIAZZOLI B; FELICI G; LAURELLI P; MANNOCCHI G; MURTAS F; MURTAS GP; PASSALACQUA L; PEPEALTARELLI M; PICCHI P; COLRAIN P; TENHAVE I; LYNCH JG; MAITLAND W; MORTON WT; RAINE C; REEVES P; SCARR JM; SMITH K; SMITH MG; THOMPSON AS; TURNBULL RM; BRANDL B; BRAUN O; GEWENIGER C; HANKE P; HEPP V; KLUGE EE; MAUMARY Y; PUTZER A; RENSCH B; STAHL A; TITTEL K; WUNSCH M; BEUSELINCK R; BINNIE DM; CAMERON W; CATTANEO M; COLLING DJ; DORNAN PJ; GREENE AM; HASSARD JF; LIESKE NM; MOUTOUSSI A; NASH J; PATTON S; PAYNE DG; PHILLIPS MJ; SANMARTIN G; SEDGBEER JK; WRIGHT AG; GIRTLER P; KUHN D; RUDOLPH G; VOGL R; BOWDERY CK; BRODBECK TJ; FINCH AJ; FOSTER F; HUGHES G; JACKSON D; KEEMER NR; NUTTALL M; PATEL A; SLOAN T; SNOW SW; WHELAN EP; KLEINKNECHT K; RAAB J; RENK B; SANDER HG; SCHMIDT H; STEEG F; WALTHER SM; WANKE R; WOLF B; BENCHEIKH AM; BENCHOUK C; BONISSENT A; CARR J; COYLE P; DRINKARD J; ETIENNE F; NICOD D; PAPALEXIOU S; PAYRE P; ROOS L; ROUSSEAU D; SCHWEMLING P; TALBY M; ADLUNG S; ASSMANN R; BAUER C; BLUM W; BROWN D; CATTANEO P; DEHNING B; DIETL H; DYDAK F; FRANK M; HALLEY AW; JAKOBS K; LAUBER J; LUTJENS G; LUTZ G; MANNER W; RICHTER R; SCHRODER J; SCHWARZ AS; SETTLES R; SEYWERD H; STIERLIN U; STIEGLER U; STDENIS R; WOLF G; ALEMANY R; BOUCROT J; CALLOT O; CORDIER A; DAVIER M; DUFLOT L; GRIVAZ JF; HEUSSE P; JAFFE DE; JANOT P; KIM DW; LEDIBERDER F; LEFRANCOIS J; LUTZ AM; SCHUNE MH; VEILLET JJ; VIDEAU I; ZHANG Z; ABBANEO D; BAGLIESI G; BATIGNANI G; BOTTIGLI U; BOZZI C; CALDERINI G; CARPINELLI M; CIOCCI MA; DELLORSO R; FERRANTE I; FIDECARO F; FOA L; FORTI F; GIASSI A; GIORGI MA; GREGORIO A; LIGABUE F; LUSIANI A; MANNELLI EB; MARROCCHESI PS; MESSINEO A; PALLA F; RIZZO G; SANGUINETTI G; SPAGNOLO P; STEINBERGER J; TENCHINI R; TONELLI G; TRIGGIANI G; VANNINI C; VENTURI A; VERDINI PG; WALSH J; BETTERIDGE AP; GAO Y; GREEN MG; MARCH PV; MIR LM; MEDCALF T; QUAZI IS; STRONG JA; WEST LR; BOTTERILL DR; CLIFFT RW; EDGECOCK TR; HAYWOOD S; NORTON PR; THOMPSON JC; BLOCHDEVAUX B; COLAS P; DUARTE H; EMERY S; KOZANECKI W; LANCON E; LEMAIRE MC; LOCCI E; MARX B; PEREZ P; RANDER J; RENARDY JF; ROSOWSKY A; ROUSSARIE A; SCHULLER JP; SCHWINDLING J; MOHAND DS; VALLAGE B; JOHNSON RP; LITKE AM; TAYLOR G; WEAR J; ASHMAN JG; BABBAGE W; BOOTH CN; BUTTAR C; CARTWRIGHT S; COMBLEY F; DAWSON I; THOMPSON LF; BARBERIO E; BOHRER A; BRANDT S; COWAN G; GRUPEN C; LUTTERS G; RIVERA F; SCHAFER U; SMOLIK L; BOSISIO L; DELLAMARINA R; GIANNINI G; GOBBO B; RAGUSA F; BELLANTONI L; CHEN W; CONWAY JS; FENG Z; FERGUSON DPS; GAO YS; GRAHL J; HARTON JL; HAYES OJ; NACHTMAN JM; PAN YB; SAADI Y; SCHMITT M; SCOTT I; SHARMA V; SHI ZH; TURK JD; WALSH AM; WEBER FV; WU SL; WU X; ZHENG M; ZOBERNIG G;
Indirizzi:
CNRS,IN2P3,PHYS PARTICULES LAB F-74019 ANNECY LE VIEUX FRANCE UNIV SASSARI,IST MATEMAT & FIS I-07100 SASSARI ITALY UNIV NAPLES,DIPARTIMENTO SCI FIS I-80138 NAPLES ITALY UNIV CALIF SANTA CRUZ,INST PARTICLE PHYS SANTA CRUZ CA 95064 CE SACLAY,DAPNIA,SERV PHYS PARTICULES F-91191 GIF SUR YVETTE FRANCE UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES E-08193 BARCELONA SPAIN INFN,SEZ BARI I-70126 BARI ITALY UNIV BARI,DIPARTIMENTO FIS I-70126 BARI ITALY CHINESE ACAD SCI,INST HIGH ENERGY PHYS BEIJING PEOPLES R CHINA CERN CH-1211 GENEVA 23 SWITZERLAND UNIV CLERMONT FERRAND,IN2P3,CNRS,PHYS CORPUSCULAIRE LAB F-63177 CLERMONT FERRAND FRANCE NIELS BOHR INST DK-2100 COPENHAGEN DENMARK DEMOKRITOS NATL CTR SCI RES GR-15310 ATHENS GREECE ECOLE POLYTECH,PHYS NUCL & HAUTES ENERGIES LAB F-91128 PALAISEAU FRANCE UNIV EDINBURGH,DEPT PHYS EDINBURGH EH9 3JZ MIDLOTHIAN SCOTLAND UNIV FLORENCE,INFN,DIPARTIMENTO FIS,SEZ FIRENZE I-50125 FLORENCE ITALY FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST TALLAHASSEE FL 32306 FLORIDA STATE UNIV,DEPT PHYS TALLAHASSEE FL 32306 INFN,LAB NAZL FRASCATI I-00044 FRASCATI ITALY UNIV GLASGOW,DEPT PHYS & ASTRON GLASGOW G12 8QQ SCOTLAND UNIV HEIDELBERG,INST HOCHENERGIEPHYS W-6900 HEIDELBERG GERMANY UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT PHYS LONDON SW7 2BZ ENGLAND INNSBRUCK UNIV,DEPT EXPTL PHYS A-6020 INNSBRUCK AUSTRIA UNIV LANCASTER,DEPT PHYS LANCASTER LA1 4YB ENGLAND UNIV MAINZ,INST PHYS W-6500 MAINZ GERMANY FAC SCI LUMINY,IN2P3,CNRS,CTR PHYS PARTICULES F-13288 MARSEILLE 9 FRANCE MAX PLANCK INST PHYS & ASTROPHYS,WERNER HEISENBERG INST W-8000 MUNICHGERMANY UNIV PARIS 11,IN2P3,CNRS,ACCELERATEUR LINEAIRE LAB F-91405 ORSAY FRANCE UNIV PISA,INFN,SEZ PISA I-56010 PISA ITALY SCUOLA NORMALE SUPER PISA I-56010 PISA ITALY UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL EGHAM TW20 0EX SURREY ENGLAND RUTHERFORD APPLETON LAB,DEPT PARTICLE PHYS DIDCOT OX11 0QX OXON ENGLAND UNIV SHEFFIELD,DEPT PHYS SHEFFIELD S3 7RH S YORKSHIRE ENGLAND UNIV GESAMTHSCH SIEGEN,FACHBEREICH PHYS W-5900 SIEGEN 21 GERMANY UNIV TRIESTE,DIPARTIMENTO FIS I-34127 TRIESTE ITALY INFN,SEZ TRIESTE I-34127 TRIESTE ITALY UNIV WISCONSIN,DEPT PHYS MADISON WI 53706 UNIV WASHINGTON SEATTLE WA 98195 UNIV TURIN,IST FIS GEN I-10124 TURIN ITALY CNR,IST COSM GEOFIS TURIN ITALY CERN,DIV PPE CH-1211 GENEVA 23 SWITZERLAND
Titolo Testata:
Physics letters. Section B
fascicolo: 3-4, volume: 313, anno: 1993,
pagine: 535 - 548
SICI:
0370-2693(1993)313:3-4<535:APMOGG>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOP-QUARK MASS; RADIATIVE-CORRECTIONS; CHARMED MESONS; MONTE-CARLO; Z0 DECAYS; LIFETIME; LEP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
D. Buskulic et al., "A PRECISE MEASUREMENT OF GAMMA-Z-]B(B)BAR GAMMA-Z-] HADRONS/", Physics letters. Section B, 313(3-4), 1993, pp. 535-548

Abstract

A measurement of the partial width ratio GAMMA(bbBAR)/GAMMA(had) using a method which tags the Z --> bbBAR decays through the lifetime of the produced heavy hadrons is presented. This method relies on the tracking precision afforded by a double-sided silicon vertex detector. Thetag algorithm makes a probabilistic interpretation of three-dimensional track impact parameters, using the data to measure the resolution. By tagging the two b hadrons separately, both GAMMA(bbBAR)/GAMMA(had) and the tag efficiency can be determined from the data. For a 26% efficiency of tagging a single b hadron within the vertex detector solid angle coverage, a purity of 96% is achieved. A value of GAMMA(bbBAR)/GAMMA(had) = +/-0.0026(syst.)+/-0.0016(GAMMA(ccBAR)/GAMMA(had)) is found. Combining this result with other recent ALEPH GAMMA(bbBAR)/GAMMA(had) measurements gives a 95% confidence upper limit on the Standard Model top mass of M(t) < 228 GeV.

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Documento generato il 02/12/20 alle ore 18:24:34