SEARCH FOR CP VIOLATION IN THE DECAY Z-]TAU(-)()TAU()

Authors
BUSKULIC D CASPER D DEBONIS I DECAMP D GHEZ P GOY C LEES JP MINARD MN ODIER P PIETRZYK B ARIZTIZABAL F CHMEISSANI M CRESPO JM EFTHYMIOPOULOS I FERNANDEZ E FERNANDEZBOSMAN M GAITAN V GARRIDO L MARTINEZ M ORTEU S PACHECO A PADILLA C PALLA F PASCUAL A PERLAS JA SANCHEZ F TEUBERT F 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 HUANG X LIN J OUYANG Q WANG T XIE Y XU R XUE S ZHANG J ZHANG L ZHAO W BONVICINI G COMAS P COYLE P DREVERMANN H ENGELHARDT A FORTY RW FRANK M GANIS G GAY C GIRONE M HAGELBERG R HARVEY J JACOBSEN R JOST B KNOBLOCH J LEHRAUS I MAGGI M MARKOU C MARTIN EB MATO P MEINHARD H MINTEN A MIQUEL R PALAZZI P PATER JR PERRODO P PUSZTASZERI JF RANJARD F ROLANDI L SCHLATTER D SCHMELLING M TEJESSY W TOMALIN IR VEENHOF R VENTURI A WACHSMUTH H WIEDENMANN W WITZELING W WOTSCHACK J AJALTOUNI Z BARDADINOTWINOWSKA M BARRES A BOYER C FALVARD A GAY P GUICHENEY C HENRARD P JOUSSET J MICHEL B MONTEIL S MONTRET JC PALLIN D PERRET P PODLYSKI F PRORIOL J ROSSIGNOL JM 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 BLONDEL G BONNEAUD G BRIENT JC BOURDON P PASSALACQUA L ROUGE A RUMPF M TANAKA R VALASSI A VERDERI M VIDEAU H CANDLIN DJ PARSONS MI VEITCH E FOCARDI E PARRINI G CORDEN M DELFINO M GEROGIOPOULOS C JAFFE DE 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 KNOWLES IG LYNCH JG MAITLAND W MORTON WT RAINE C REEVES P SCARR JM SMITH K SMITH MG THOMPSON AS THORN S TURNBULL RM BECKER U BRAUN O GEWENIGER C GRAEFE G HANKE P HEPP V KLUGE EE PUTZER A RENSCH B SCHMIDT M SOMMER J STENZEL H TITTEL K WUNSCH M BEUSELINCK R BINNIE DM CAMERON W CATTANEO M COLLING DJ DORNAN PJ HASSARD JF KONSTANTINIDIS N MONETA L MOUTOUSSI A NASH J PAYNE DG SANMARTIN G SEDGBEER JK WRIGHT AG DISSERTORI G GIRTLER P KNERINGER E KUHN D RUDOLPH G 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 DIACONU C ETIENNE F NICOD D PAYRE P ROOS L ROUSSEAU D TALBY M ABT I ADLUNG S ASSMANN R BAUER C BLUM W BROWN D CATTANEO P DEHNING B DIETL H DYDAK F HALLEY AW JAKOBS K KROHA H LAUBER J LUTJENS G LUTZ G MANNER W MOSER HG 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 COURAULT F DAVIER M DUFLOT L GRIVAZ JF HEUSSE P JACQUET M JANOT P KIM DW LEDIBERDER F LEFRANCOIS J LUTZ AM MUSOLINO G NIKOLIC I PARK HJ PARK IC SCHUNE MH SIMION S VEILLET JJ VIDEAU I ABBANEO D BAGLIESI G BATIGNANI G BETTARINI S 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 LUSIANI A MARROCCHESI PS MESSINEO A RIZZO G SANGUINETTI G SCIABA A SPAGNOLO P STEINBERGER J TENCHINI R TONELLI G TRIGGIANI G VANNINI C VERDINI PG WALSH J BETTERIDGE AP BLAIR GA BRYANT LM GAO Y GREEN MG JOHNSON DL MEDCALF T MIR LM STRONG JA BERTIN V BOTTERILL DR CLIFFT RW EDGECOCK TR HAYWOOD S EDWARDS M MALEY P 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 TRABELSI A VALLAGE B JOHNSON RP LITKE AM TAYLOR G WEAR J BEDDALL A BOOTH CN BOSWELL C CARTWRIGHT S COMBLEY F DAWSON I KOKSAL A LETHO M NEWTON WM RANKIN C THOMPSON LF BOHRER A BRANDT S COWAN G FEIGL E GRUPEN C LUTTERS G MINGUETRODRIGUEZ J RIVERA F SARAIVA P SCHAFER U SMOLIK L BOSISIO L DELLAMARINA R GIANNINI G GOBBO B PITIS L RAGUSA F KIM H ROTHBERG J WASSERBAECH S ARMSTRONG SR BELLANTONI L CONWAY JS ELMER P FENG Z FERGUSON DPS GAO YS GONZALES S GRAHL J HARTON JL HAYES OJ HU H MCNAMARA PA NACHTMAN JM OREJUDOS W PAN YB SAADI Y SCHMITT M SCOTT I SHARMA V TURK JD WALSH AM WEBER FV WILDISH T WU SL WU X YAMARTINO JM ZHENG M ZOBERNIG G
Citation
D. Buskulic et al., SEARCH FOR CP VIOLATION IN THE DECAY Z-]TAU(-)()TAU(), Physics letters. Section B, 346(3-4), 1995, pp. 371-378
Citations number
21
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
346
Issue
3-4
Year of publication
1995
Pages
371 - 378
Database
ISI
SICI code
0370-2693(1995)346:3-4<371:SFCVIT>2.0.ZU;2-Z
Abstract
Data collected by ALEPH in the years 1990, 1991 and 1992 have been use d to update a previous search for CP violation in the decay of the Z i nto tau(+)tau(-). The measurement of the weak dipole form factor of th e tau lepton has been performed by studying correlations between the t au leptons. No signal of CP violation was found. The weak dipole form factor is found to be ($) over tilde d(tau) = (+0.15 +/- 0.58(stat) +/ - 0.38(sys)) 10(-17)e . cm, obtained with 19628 identified tau(+)tau(- ) events. This gives an upper limit on the weak dipole form factor of j\($) over tilde d(tau)\ < 1.5 . 10(-17)e . cm at the 95% confidence l evel.