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Titolo:
CORRELATION-MEASUREMENTS IN Z-]TAU(-) AND THE TAU-NEUTRINO HELICITY()TAU()
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; 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; JEST B; KNOBLOCH J; LEHRAUS I; MAGGI M; MARKOU C; MARTINEZ M; MATO P; MEINHARD H; MINTEN A; MIQUEL R; MOSER HG; PALAZZI F; 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; MOLLERUD R; NILSSON BS; KYRIAKIS A; SIMOPOULOU E; SIOTIS I; VAYAKI A; ZACHARIADOU K; BADIER J; BLONDEL A; BONNEAUD G; BRIENT JC; BOURDON P; 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; JAFFE DE; LEVINTHAL D; ANTONELLI A; BALDINI R; BENCIVENNI G; BOLOGNA G; BOSSI F; CAMPANA P; CAPON G; CERUTTI F; CHIARELLA V; FELICI G; LAURELLI P; MANNOCCHI G; MURTAS F; MURTAS GP; PASSALACQUA L; PEPEALTARELLI M; 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; 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; GREENE AM; KLEINKNECHT K; RAAB J; RENK B; SANDER HG; SCHMIDT H; WALTHER SM; WANKE R; WOLF B; ZIMMERMANN A; 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:
IN2P3,CNRS,PHYS PARTICULES LAB F-74019 ANNECY LE VIEUX FRANCE UNIV AUTONOMA BARCELONA,INST FIS ALTES ENERGIES E-08193 BARCELONA SPAIN INFN,DIPARTIMENTO FIS I-70126 BARI ITALY ACAD SINICA,INST HIGH ENERGY PHYS BEIJING PEOPLES R CHINA CERN,EUROPEAN LAB PARTICLE PHYS 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 DEMOCRITOS NUCL RES CTR ATHENS GREECE ECOLE POLYTECH,IN2P3,CNRS,PHYS NUCL & HAUT ENERGIES LAB F-91128 PALAISEAU FRANCE UNIV EDINBURGH,DEPT PHYS EDINBURGH EH9 3JZ MIDLOTHIAN SCOTLAND UNIV FIRENZE,INFN,DIPARTIMENTO FIS I-50125 FLORENCE ITALY FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST TALLAHASSEE FL 32306 FLORIDA STATE UNIV,DEPT PHYS TALLAHASSEE FL 32306 INFN,LNF I-00044 FRASCATI ITALY UNIV GLASGOW,DEPT PHYS & ASTRON GLASGOW G12 8QQ SCOTLAND UNIV HEIDELBERG,INST HOCHENERGIEPHYS D-69120 HEIDELBERG GERMANY IMPERIAL COLL SCI TECHNOL & MED,DEPT PHYS LONDON SW1 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 UNIV TRIESTE,DIPARTIMENTO FIS I-34127 TRIESTE ITALY INFN I-34127 TRIESTE ITALY UNIV WISCONSIN,DEPT PHYS MADISON WI 53706 UNIV WASHINGTON SEATTLE WA 98195 UNIV TORINO,IST FIS GEN TURIN ITALY CNR,IST COSMOGEOFIS I-10133 TURIN ITALY CERN,DIV PARTICLE PHYS EXPT CH-1211 GENEVA 23 SWITZERLAND UNIV SASSARI,IST MATEMAT & FIS SASSARI ITALY UNIV BARCELONA,DEPT ESTRUCT & CONSTITUENS MAT E-08208 BARCELONA SPAIN
Titolo Testata:
Physics letters. Section B
fascicolo: 1-2, volume: 321, anno: 1994,
pagine: 168 - 176
SICI:
0370-2693(1994)321:1-2<168:CIZATT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
LEPTONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
16
Recensione:
Indirizzi per estratti:
Citazione:
D. Buskulic et al., "CORRELATION-MEASUREMENTS IN Z-]TAU(-) AND THE TAU-NEUTRINO HELICITY()TAU()", Physics letters. Section B, 321(1-2), 1994, pp. 168-176

Abstract

Using data collected with the ALEPH detector at LEP correlations between the decay products of the tau(+) and tau- produced in the decay ofthe Z have been measured. The measurements performed in the decays tau --> pi nu and tau --> p nu place limits on deviations from the Standard Model. These are given by the parameter xi with xi = -1 for the Standard Model. The measured values are xi(pi) = -0.95 +/- 0.11 +/- 0.05and xi(p) = -1.03 +/- 0.11 +/- 0.05. For models which predict xi(pi) = xi(p) = xi - interpreted as the average tau neutrino helicity - the measurement is xi = -0.99 +/- 0.07 +/- 0.04.

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Documento generato il 02/12/20 alle ore 18:29:55