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Search for CP violation in the decay Z → τ+τ-

Title:	Search for CP violation in the decay Z → τ+τ-
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, Massimo; 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.
Contributors:	Buskulic, D; Casper, D; Debonis, I; Decamp, D; Ghez, P; Goy, C; Lees, J; Minard, M; Odier, P; Pietrzyk, B; Ariztizabal, F; Chmeissani, M; Crespo, J; Efthymiopoulos, I; Fernandez, E; Fernandezbosman, M; Gaitan, V; Garrido, L; Martinez, M; Orteu, S; Pacheco, A; Padilla, C; Palla, F; Pascual, A; Perlas, J; 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, R; 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, E; Mato, P; Meinhard, H; Minten, A; Miquel, R; Palazzi, P; Pater, J; Perrodo, P; Pusztaszeri, J; Ranjard, F; Rolandi, L; Schlatter, D; Schmelling, M; Tejessy, W; Tomalin, I; 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
Publisher Information:	Elsevier BV; NL
Publication Year:	1995
Collection:	Università degli Studi di Milano-Bicocca: BOA (Bicocca Open Archive)
Subject Terms:	Physics
Description:	Data collected by ALEPH in the years 1990, 1991 and 1992 have been used to update a previous search for CP violation in the decay of the Z into τ+τ-. The measurement of the weak dipole form factor of the τ lepton has been performed by studying correlations between the τ leptons. No signal of CP violation was found. The weak dipole form factor is found to be d ̃τ = (+0.15 ± 0.58stat ± 0.38sys)10-17e · cm, obtained with 19628 identified τ+τ- events. This gives an upper limit on the weak dipole form factor of d ̃τ < 1.5 · 10-17 e · cm at the 95% confidence level.
Document Type:	article in journal/newspaper
File Description:	STAMPA
Language:	English
Relation:	info:eu-repo/semantics/altIdentifier/wos/WOS:A1995QM41800024; volume:346; issue:3-4; firstpage:371; lastpage:378; numberofpages:8; journal:PHYSICS LETTERS. SECTION B; https://hdl.handle.net/10281/390334
DOI:	10.1016/0370-2693(95)00093-Z
Availability:	https://hdl.handle.net/10281/390334; https://doi.org/10.1016/0370-2693(95)00093-Z
Accession Number:	edsbas.ED58ABA3
Database:	BASE