Search for charged scalar leptons using the OPAL detector at s=161 GeV

K. Ackerstaff,G. Alexander,John Allison,N. Altekamp,K Ametewee,K. J. Anderson,S. Anderson,Silvia Arcelli,Shoji Asai,D. Axen,Georges Azuelos,A. H. Ball,Elisabetta Luigia Barberio,Rj Barlow,R. Bartoldus,J.R. Batley,J. Bechtluft,C. Beeston,T. Behnke,A. N. Bell,K. W. Bell,Gideon Bella,S. Bentvelsen,P. Berlich,Siegfried Bethke,Otmar Biebel,A. Biguzzi,V. Blobel,I. J. Bloodworth,J. E. Bloomer,M. Bobinski,P. Bock,H. M. Bosch,M. Boutemeur,B.T. Bouwens,S. Braibant,R. M. Brown,H.J. Burckhart,C. Burgard,R. Burgin,Paolo Capiluppi,R. K. Carnegie,A. A. Carter,J. R. Carter,C. Y. Chang,D. G. Charlton,D. Chrisman,P.E.L. Clarke,I. Cohen,J. E. Conboy,O. C. Cooke,M. Cuffiani,Shlomo Dado,Carlo Dallapiccola,G. M. Dallavalle,S. De Jong,L. A. del Pozo,Klaus Kurt Desch,M. S. Dixit,E. do Couto e Silva,M. Doucet,E. Duchovni,Guenter Duckeck,I. P. Duerdoth,J E G Edwards,P. G. Estabrooks,H. G. Evans,M. Evans,Federica Fabbri,P. Fath,F. Fiedler,M. Fierro,H. M. Fischer,Ron Folman,D. G. Fong,M. Foucher,A. Fürtjes,Pauline Gagnon,J. W. Gary,J. Gascon,S. M. Gascon-Shotkin,N. I. Geddes,Christoph Geich-Gimbel,T. Geralis,G. Giacomelli,Paolo Giacomelli,R. Giacomelli,Valerie Gibson,W. R. Gibson,D. M. Gingrich,D. Glenzinski,J. Goldberg,M. J. Goodrick,W. Gorn,C. Grandi,E. Gross,J. Grunhaus,M. Gruwe,C. Hajdu,G. G. Hanson,M. Hansroul,M. Hapke,C. K. Hargrove,P. A. Hart,C. Hartmann,M. Hauschild,C. M. Hawkes,Richard John Hawkings,R.J. Hemingway,Matthew Herndon,Gregor Herten,R. D. Heuer,M. D. Hildreth,J. C. Hill,Stephen Hillier,T. Hilse,Peter R Hobson,R. J. Homer,A. K. Honma,D. Horvath,R. Howard,R E Hughes-Jones,D E Hutchcroft,P. Igo-Kemenes,D. C. Imrie,M.R. Ingram,K. Ishii,A. Jawahery,P. W. Jeffreys,H. Jeremie,M. Jimack,A. Joly,C. R. Jones,Graham Jones,Matthew Jones,Roger Jones,U. Jost,P Jovanovic,T. R. Junk,D. Karlen,Kiyotomo Kawagoe,T. Kawamoto,Richard Keeler,R. G. Kellogg,B. W. Kennedy,B. J. King,J. Kirk,Stefan Kluth,T. Kobayashi,M. J. Kobel,D. S. Koetke,T. P. Kokott,M. Kolrep,Sachio Komamiya,Thomas Kress,Peter Krieger,J. von Krogh,Paul Kyberd,G. D. Lafferty,R. Lahmann,W. P. Lai,D. Lanske,J. Lauber,S.R. Lautenschlager,J. G. Layter,D. Lazic,A. M. Lee,E. Lefebvre,D. Lellouch,J. Letts,L. Levinson,C. Lewis,S. L. Lloyd,F.K. Loebinger,G. D. Long,M. J. Losty,J. Ludwig,M. Mannelli,S. Marcellini,C. Markus,A.J. Martin,J.P. Martin,German Martinez,Tetsuro Mashimo,W Matthews,P. Mättig,W. J. McDonald,Jim McKenna,E. A. Mckigney,T. J. McMahon,A. I. McNab,Robert McPherson,F. Meijers,S. Menke,F. S. Merritt,H. Mes,J-P. Meyer,A. Michelini,G. Mikenberg,D.J. Miller,R. Mir,W. Mohr,A. Montanari,T. Mori,Masahiro Morii,U. Müller,K. Nagai,I. Nakamura,Homer Neal,B. Nellen,B. Nijjhar,Richard Nisius,S.W. O'Neale,F. G. Oakham,F. Odorici,H. O. Ogren,N. J. Oldershaw,T. Omori,M. J. Oreglia,S. Orito,J. Pálinkás,Gabriella Pásztor,Joleen Pater,G. N. Patrick,J. Patt,M. J. Pearce,S. Petzold,P Pfeifenschneider,J. E. Pilcher,J. Pinfold,D. E. Plane,P. Poffenberger,B. Poli,A. Posthaus,H Przysiezniak,D. L. Rees,D. Rigby,S. Robertson,S. A. Robins,N. Rodning,J. M. Roney,A. Rooke,E. Ros,A. M. Rossi,M. Rosvick,P. Routenburg,Yoram Rozen,K. Runge,O. Runolfsson,U. Ruppel,D. R. Rust,R. Rylko,K. Sachs,Ekg Sarkisyan,Misao Sasaki,Carla Sbarra,A. D. Schaile,O. Schaile,F. Scharf,P. Scharff-Hansen,P. Schenk,B. Schmitt,Stefan Schmitt,Matthias Schröder,H. C. Schultz Coulon,Michael Schulz,M. Schumacher,P. Schütz,W. G. Scott,T. G. Shears,B. C. Shen,C. H. Shepherd-Themistocleous,Peter Sherwood,G. P. Siroli,A. Sittler,A Skillman,A. Skuja,A.M. Smith,T. J. Smith,G. A. Snow,R. Sobie,S Söldner-Rembold,R. W. Springer,M. Sproston,A. Stahl,M. Steiert,K. Stephens,J. Steuerer,B. Stockhausen,David Strom,F. Strumia,P. Szymański,R. Tafirout,S. D. Talbot,S. Tanaka,P. Taras,Shlomit Tarem,M. Thiergen,Mark Thomson,E. von Törne,S. Towers,I. Trigger,T. Tsukamoto,E. Tsur,A. S. Turcot,M. F. Turner-Watson,P. Utzat,R. Van Kooten,M. Verzocchi,P. Vikas,M Vincter,E. H. Vokurka,F. Wackerle,A. Wagner,C. P. Ward,D. R. Ward,J. J. Ward,P. M. Watkins,Alan Watson,N. K. Watson,P. S. Wells,Norbert Wermes,J. S. White,B. Wilkens,G. W. Wilson,J. A. Wilson,G. Wolf,S.A. Wotton,T. R. Wyatt,S. Yamashita,G. Yekutieli,V Zacek

Search for charged scalar leptons using the OPAL detector at s=161 GeV

1997

Abstract A search for pair-produced scalar electron, muon and tau leptonshas been performed using a data sample corresponding to an integrated luminosity of 10.1 pb −1 at a centre-of-mass energy of s =161 GeV collected with the OPAL detector at LEP. Such events would yield an acoplanarpair of leptonswith significant missing energyin the final state. No excess of acoplanar leptonpair events has been observed in the data. Limits are presented on the production cross-sections of charged scalar leptons. Exclusion regions are also presented in the framework of the Minimal Supersymmetric Standard Model. A 95% C.L. lower limit on the right-handed selectron mass of 71.5 GeV is obtained for tan β ≥ 1.5, |μ| ≥ 200 GeV and m χ 1 0 = 12.0 GeV . A 95% C.L. lower limit on the right-handed smuon mass of 51.0 GeV is obtained for m χ 1 0 = 12.0 GeV , independent of tan β and μ.

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