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Titolo:
PRODUCTION OF CHARMED MESONS IN Z DECAYS
Autore:
BUSKULIC D; DEBONIS I; DECAMP D; GHEZ P; GOY C; LEES JP; MINARD MN; PIETRZYK B; ARIZTIZABAL F; COMAS P; CRESPO JM; EFTHYMIOPOULOS I; FERNANDEZ E; FERNANDEZBOSMAN M; GAITAN V; GARRIDO L; MATTISON T; ORTEU S; PACHECO A; PADILLA C; PASCUAL A; CREANZA D; DEPALMA M; FARILLA A; IASELLI G; MAGGI G; MARINELLI N; NATALI S; NUZZO S; 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; BONVICINI G; BOUDREAU J; CASPER D; DREVERMANN H; FORTY RW; GANIS G; GAY C; GIRONE M; HAGELBERG R; HARVEY J; HILGART J; JACOBSEN R; JOST B; KNOBLOCH J; LEHRAUS I; MAGGI M; MARKOU C; MARTINEZ M; MATO P; MEINHARD H; MINTEN A; MIQUEL R; MOSER HG; PALAZZI P; PATER JR; PERLAS JA; PERRODO P; PUSZTASZERI JF; RANJARD F; 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; BARDADINOTWINOWSKA M; BARRES A; BOYER C; FALVARD A; GAY P; GUICHENEY C; HENRARD P; JOUSSET J; MICHEL B; MONTRET JC; PALLIN D; PERRET P; PODLYSKI F; PRORIOL J; SAADI F; FEARNLEY T; HANSEN JB; HANSEN JD; HANSEN JR; HANSEN PH; JOHNSON SD; MOLLERUD R; NILSSON BS; KYRIAKIS A; SIMOPOULOU E; SIOTIS I; VAYAKI A; ZACHARIADOU K; BADIER J; BLONDEL A; BONNEAUD G; BRIENT JC; BOURDON B; FOUQUE G; PASSALACQUA L; ROUGE A; RUMPF M; TANAKA R; VERDERI M; VIDEAU H; CANDLIN DJ; PARSONS MI; VEITCH E; FOCARDI E; MONETA L; PARRINI G; CORDEN M; DELFINO M; GEORGIOPOULOS C; IKEDA M; JAFFE DE; LEVINTHAL D; ANTONELLI A; BENCIVENNI G; BOLOGNA G; BOSSI F; CAMPANA P; CAPON G; CERUTTI F; CHIARELLA V; FELICI G; LAURELLI P; MANNOCCHI G; MURTAS F; MURTAS GP; PEPEALTARELLI M; SALOMONE S; COLRAIN P; TENHAVE I; LYNCH JG; MAITLAND W; MORTON WT; RAINE C; REEVES P; SCARR JM; SMITH K; SMITH MG; THOMPSON AS; THORN S; TURNBULL RM; BRANDL B; BRAUN O; GEWENIGER C; GRAEFE G; HANKE P; HEPP V; KARGER C; 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; 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; GALLA A; GREENE AM; KLEINKNECHT K; RAAB J; RENK B; SANDER HG; SCHMIDT H; WALTHER SM; WANKE R; WOLF B; BENCHEIKH AM; BENCHOUK C; BONISSENT A; CALVET D; CARR J; COYLE P; DIACONU C; DRINKARD J; ETIENNE F; NICOD D; 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; JANOT P; KIM DW; LEDIBERDER F; LEFRANCOIS J; LUTZ AM; MUSOLINO G; SCHUNE MH; VEILLET JJ; VIDEAU I; ABBANEO D; BAGLIESI G; BATIGNANI G; BOTTIGLI U; BOZZI C; CALDERINI G; CARPINELLI M; CIOCCI MA; CIULLI V; DELLORSO R; FERRANTE I; FIDECARO F; FOA L; FORTI F; GIASSI A; GIORGI MA; GREGORIO A; LIGABUE F; LUISIANI A; MANNELLI EB; MARROCCHESI PS; MESSINEO A; PALLA F; RIZZO G; SANGUINETTI G; SPAGNOLO P; STEINBERGER J; TENCHINI R; TONELLI G; TRIGGIANI G; VALASSI A; VANNINI C; VENTURI A; VERDINI PG; WALSH J; BETTERIDGE AP; GAO Y; GREEN MG; JOHNSON DL; MARCH PV; MEDCALF T; MIR LM; QUAZI IS; STRONG JA; BERTIN V; BOTTERILL DR; CLIFFT RW; EDGECOCK TR; HAYWOOD S; EDWARDS M; 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; SIMOHAND D; VALLAGE B; JOHNSON RP; LITKE AM; TAYLOR G; WEAR J; 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; PITIS L; 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:
LAB PHYS PARTICULES,CNRS,IN2P3 F-74019 ANNECY LE VIEUX FRANCE UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES E-08193 BARCELONA SPAIN INFN,DIPARTIMENTO FIS,SEZ BARI I-70126 BARI ITALY CHINESE ACAD SCI,INST HIGH ENERGY PHYS BEIJING PEOPLES R CHINA CERN,EUROPEAN PARTICLE PHYS LAB CH-1211 GENEVA 23 SWITZERLAND UNIV CLERMONT FERRAND,PHYS CORPUSCULAIRE LAB,CNRS,IN2P3 F-63177 CLERMONT FERRAND FRANCE NIELS BOHR INST DK-2100 COPENHAGEN DENMARK DEMOCRITOS NUCL RES CTR ATHENS GREECE ECOLE POLYTECH,PHYS NUCL & HAUTES ENERGIES LAB,CNRS,IN2P3 F-91128 PALAISEAU FRANCE UNIV EDINBURGH,DEPT PHYS EDINBURGH EH9 3JZ MIDLOTHIAN SCOTLAND UNIV FLORENCE,INFN,DIPARTIMENTO FIS,SEZ FIRENZU I-50125 FLORENCE ITALY FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST TALLAHASSEE FL 32306 INFN,NAZL LAB I-00044 FRASCATI ITALY UNIV GLASGOW,DEPT PHYS & ASTRON GLASGOW G12 8QQ SCOTLAND UNIV HEIDELBERG,INST HOCHENER GIEPHYS D-69120 HEIDELBERG GERMANY UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED,DEPT PHYS LONDON SW7 2BZ ENGLAND INNSBRUCK UNIV,INST EXPTL PHYS A-6020 INNSBRUCK AUSTRIA UNIV LANCASTER,DEPT PHYS LANCASTER LA1 4YB ENGLAND UNIV MAINZ,INST PHYS D-55099 MAINZ GERMANY FAC SCI LUMINY,CTR PHYS PARTICULES,CNRS,IN2P3 F-13288 MARSEILLE 9 FRANCE MAX PLANCK INST PHYS & ASTROPHYS,WERNER HEISENBERG INST D-80805 MUNICH GERMANY UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,CNRS,IN2P3 F-91405 ORSAY FRANCE UNIV PISA,INFN,DIPARTIMENTO FIS,SEZ PISA I-56010 PISA ITALY UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL,DEPT PHYS LONDON TW2 OEX SURREY ENGLAND RUTHERFORD APPLETON LAB,DEPT PARTICLE PHYS DIDCOT OX11 0QX OXON ENGLAND CE SACLAY,DAPNIA,SERV PHYS PARTICULES F-91191 GIF SUR YVETTE FRANCE UNIV CALIF SANTA CRUZ,INST PARTICLE PHYS SANTA CRUZ CA 95064 UNIV SHEFFIELD,DEPT PHYS SHEFFIELD S3 7RH S YORKSHIRE ENGLAND UNIV SIEGEN,FACHBEREICH PHYS D-57068 SIEGEN GERMANY UNIV TRIESTE,DIPARTIMENTO FIS,INFN,SEZ TRIESTE I-34127 TRIESTE ITALY UNIV WISCONSIN,DEPT PHYS MADISON WI 53706 UNIV WASHINGTON SEATTLE WA 98195 KANGNUNG NATL UNIV KANGNUNG SOUTH KOREA UNIV BARCELONA,DEPT ESTRUCT & CONSTITUENS MAT E-08208 BARCELONA SPAIN
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 1, volume: 62, anno: 1994,
pagine: 1 - 14
SICI:
0170-9739(1994)62:1<1:POCMIZ>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
E+E ANNIHILATION; HEAVY QUARKS; FRAGMENTATION; RESONANCE; ALEPH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
D. Buskulic et al., "PRODUCTION OF CHARMED MESONS IN Z DECAYS", Zeitschrift fur Physik. C, Particles and fields, 62(1), 1994, pp. 1-14

Abstract

The production of charmed mesons D0(-), D+/-, and D+/- is studied ina sample of 478,000 hadronic Z decays. The production rates are measured to be GAMMA(Z --> D+/- X)/GAMMA(had) = 0.187 +/- 0.015 (exp.) +/-0.013 (BR), GAMMA(Z --> D+/- X) = 0.251 +/- 0.026 (exp.) +/- 0.025 (BR), GAMMA(Z --> D0(-) X)/GAMMA(had) = 0.518 +/- 0.052 (exp.) +/- 0.035(BR), where the errors from this analysis are separated from those coming from the D branching ratios (BR). The D +/momentum distribution is extracted separately for Z --> cc and Z --> bbBAR events with the help of event shape variables. It is consistent with the prediction of the JETSET Monte Carlo program after adjustment of the charm fragmentation function. Constraining the shape of the Z --> bbBAR contribution,the average fraction of the beam energy taken by a D meson produced in the fragmentation of a charm quark is extracted by a parametric fitto be [X(E)]c = 0.495 +/- 0.011 +/- 0.007. Evidence for D*0 (D1(2420)0 and/or D2(2460)0) production is found in the D*+/-pi-/+ channel, accounting for a fraction (18 +/- 5 +/- 2)% of all D+/- production. The relative production of vector and pseudoscalar mesons is dicussed, together with the possible effects of D* production. The c-quark forward-backward Z-pole asymmetry is determined from that of high momentum D+/- to be A(FB)0,c = (7.7 +/- 4.4)%.

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Documento generato il 02/12/20 alle ore 18:04:10