Search for R-parity violating production of single sneutrinos in e+e- collisions at √s = 189-209 GeV: The ALEPH collaboration

A. Heister,Stefan Schael,R. Barate,Renaud Brunelière,I. De Bonis,D. Décamp,Corinne B. Goy,Stephane Jézéquel,Jean Pierre Lees,Françoise F. Martin,E. Merle,Marie Noelle Minard,Bolek Pietrzyk,Benjamin Trocmé,Gaëlle Boix,S. Bravo,M. P. Casado,Mokhtar A. Chmeissani,José M. Crespo,Enrique Fernández,M. Fernandez-Bosman,Ll C. Garrido,Eugeni S. Graugés,J. Lopez,Mauricio C. Martínez,G. Merino,Ramon Miquel,Ll M. Mir,Alberto J. Pacheco,David Paneque,Hugo S. Ruiz,Anna Colaleo,Donato Creanza,Nicola De Filippis,Mauro De Palma,Giuseppe Iaselli,Giorgio Pietro Maggi,Marcello Maggi,Salvatore Nuzzo,Antonio Ranieri,Giuseppe Raso,Federico Ruggierí,G. Selvaggi,Lucia Silvestris,Piergiulio Tempesta,Alessia Tricomi,Giuseppe Zito,Xiuping Huáng,Jim Lin,Qun Ouyang,Taijie Wang,Yi Xie,Rui Xu,Shengtian Xue,Jian Zhang,Lei Zhang,Wei Zhao,Duccio Abbaneo,Paolo Azzürri,Timothy L. Barklow,O. L. Büchmüller,Marco Cattaneo,Francesco Cerutti,Barbara Clerbaux,Hans Drevermann,Roger W. Forty,Markus J. Frank,Fabiola Gianotti,T. C. Greening,Jørgen Beck Hansen,Jeffrey A. Harvey,David E. Hutchcroft,Patrick Janot,Beat Jost,Marumi Kado,P. D. Maley,Pere Mató,A. Moutoussi,Florence Ranjard,Luigi Rolandi,Dieter Schlatter,Giacomo Sgüazzoni,W. Tejessy,Frederic Teubert,Andrea Valassi,Ioana Videau,Jonathan J. Ward,Frédérique Badaud,S. Dessagne,A. Falvard,D. Fayolle,Pascal Gay,J. C. Jousset,B. Michel,Stéphane Monteil,Dominique Pallin,J. M. Pascólo,Pascal Perret,Jakob Dines Hansen,John Renner Hansen,Philip H. Hansen,Björn S. Nilsson,Anders Wäänänen,A. Kyriakis,Christos T. Markou,E. Simopoulou,A. Vayaki,K. Zachariadou,Alain P. Blondel,Jean Claude Brient,Frédéric MacHefert,André Rougé,M. Swynghedauw,Reisaburo Tanaka,Henri Videau,V. Ciülli,Ettore Focardi,Giuliano Parrini,Angelo Antonelli,Mario Antonelli,Giorgio Bencivenni,G. F. Bologna,Fabio C. Bossi,Pierluigi L. Campana,G. Capon,Vitaliano Chiarella,P. Laurelli,G. P. Mannocchi,Fabrizio Murtas,G. P. Murtas,L. Passalacqua,M. Pepe Altarelli,Paolo Spagnolo,John F. Kennedy,James G R Lynch,Peter J. Negus,Val O'Shea,D. J. Smith,A. Stan Thompson,Steven R. Wasserbaech,Richard Cavanaugh,S. Dhamotharan,Chr C. Geweniger,Paul A. Hanke,Volker Hepp,E. E. Kluge,G. Leibenguth,Alois Putzer,H. Stenzel,K. Tittel,Sebastian Werner,Martin Wunsch,R. Beuselinck,David M. Binnie,W. Cameron,Gavin J. Davies,PJ J. Dornan,Maria Girone,Robert D. Hill,Nancy Marinelli,Jeremy Nowell,Helenka Przysiȩzniak,S. A. Rutherford,J. K. Sedgbeer,James C. Thompson,Rachel F. White,V. M. Ghete,P. Girtler,Emmerich Kneringer,D. Kuhn,Gerald Rudolph,Eva V. Bouhova- Thacker,Chris K. Bowdery,D. P. Clarke,Geoffrey F R Ellis,AJ J. Finch,F. Foster,G. D. Hughes,Roger W L Jones,M. R. Pearson,N. A. Robertson,Maria Smižanská,Vincent Lemaître,Ulla Blumenschein,F. Hölldorfer,Karl Heinz Jakobs,F. Kayser,K. Kleinknecgt,Anke Susanne Müller,Günter Quast,Burkhard Renk,Heinz Georg Sander,S. Schmeling,H. W. Wachsmuth,Ch Zeitnitz,Th Ziegler,Alain Bonissent,John Austin Carr,Paschal A. Coyle,Christian Curtil,Anne Ealet,Dominique Fouchez,Olivier Leroy,Th Kachelhoffer,Patrice Payre,David Rousseau,André Tìlquin,Francesco Ragusa,A. David,Hans Dietl,Gerardo Ganis,Kay Hüttmann,G. Lütjens,C. Mannert,W. E. Männer,Hans Günther Moser,Ronald Dean Settles,Günter K. Wolf,J. Boucrot,Olivier H. Callot,Michel Davier,L. Duflot,Jean François Grivaz,Ph Heusse,Agnieszka Jachołkowska,C. Loomis,L. Serin,J. J. Veillet,J. B. De Vivie De Régie,Chao Yuan,Giuseppe Bagliesi,Tommaso Boccali,Lorenzo Foà,Andrea Giammanco,A. Giassi,F. Ligabue,Alberto Messineo,Fabrizio Palla,Giulio Sanguinetti,Andrea Sciabà,Roberto Tenchini,Andrea Venturi,Piero Giorgio Verdini,O. A. Awunor,Grahame A. Blair,J. Coles,Glen A. Cowan,Arán García-Bellido,Martin G. Green,Lee T. Jones,T. Medcalf,Andrzej Stanislaw Misiejuk,John A. Strong,P. Teixeira-Dias,R. W. Clifft,T. R. Edgecock,PR R. Norton,I. R. Tomalin,Brigitte Bloch-Devaux,Djamel Eddine Boumediène,Paul Colas,B. Fabbro,Eric Lançon,M. C. Lemaire,E. Locci,Patrice Rodríguez Pérez,J. Rander,Jean F. Renardy,A. Rosowsky,P. Seager,Adel Trabelsi,Boris Tuchming,Bertrand Vallage,Nikos Konstantinidis,Alan M. Litke,Gary N. Taylor,C. N. Booth,Susan L. Cartwright,F. H. Combley,P. N. Hodgson,Mark H. Lehto,Lee F. Thompson,K. Affholderbach,Armin Böhrer,Siegmund Brandt,Claus Grupen,James S. Heß,An Bang Ngac,G. Prange,U. Sieler,C. Borean,Gianrossano R. Giannini,Hongjian He,J. Putz,Joe E. Rothberg,S. R. Armstrong,Karl Berkelman,Kyle S. Cranmer,D. P S Ferguson,Yongsheng Gao,Sergio González,OJ J. Hayes,Hongbo Hu,Shi Jin,Jennifer E. Kile,PA A. McNamara,Jason Nielsen,Yi Pan,J. H. Von Wimmersperg-Toeller,Werner Wiedenmann,Joz Wu,Saulan Wu,Xin Wu,Georg Zobernig,Günther Dissertori

European Physical Journal C（2002）

Cited 8|Views62

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Abstract

A search for single sneutrino production under the assumption that R-parity is violated via a single dominant LLĒ coupling is presented. This search considers the process eγ → ν̃ℓ and is performed using the data collected by the ALEPH detector at centre-of-mass energies from 189 GeV up to 209 GeV corresponding to an integrated luminosity of 637.1 pb-1. The numbers of observed candidate events are in agreement with Standard Model expectations and 95% confidence level upper limits on five of the LLĒ couplings are given as a function of the assumed sneutrino mass.

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