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

6533b7d9fe1ef96bd126cc33

RESEARCH PRODUCT

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

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 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 Alberto Lusiani 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 A. Trabelsi 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 Ri Antonelli Antonella/c 6238 2011 Passalacqua Luca/f 5127 2011 Murtas Fabrizio/b 5729 2012 S.t. Denis Richard/c 8997 2012 Ferrante Isidoro/f 1017 2012 Sanchez Federico/f 5809 2012 Luigi Rolandi Franco Ligabue

subject

Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Physics Electron–positron annihilation Form factor (quantum field theory)01 natural sciences ALEPH Experiment Nuclear physics Dipole 0103 physical sciences CP violation High Energy Physics::Experiment 010306 general physics ALEPH experiment Lepton

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 tau(+)tau(-). The measurement of the weak dipole form factor of the tau lepton has been performed by studying correlations between the tau 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 level.

year	journal	country	edition	language
1995-03-01

10.1016/0370-2693(95)00093-z http://hdl.handle.net/11589/3480