Search for single top quark production at LEP 2 OPAL Collaboration

G. Abbiendi,C. Ainsley,P. F. Åkesson,G. Alexander,J. Allison,G. Anagnostou,K. J. Anderson,S. Arcelli,S. Asai,D. Axen,G. Azuelos,I. Bailey,E. Barberio,R. J. Barlow,R. J. Batley,T. Behnke,K. W. Bell,P. J. Bell,G. Bella,A. Bellerive,G. Benelli,S. Bethke,O. Biebel,I. J. Bloodworth,O. Boeriu,P. Bock,J. Böhme,D. Bonacorsi,M. Boutemeur,S. Braibant,L. Brigliadori,R. M. Brown,H. J. Burckhart,J. Cammin,R. K. Carnegie,B. Caron,A. A. Carter,J. R. Carter, C. Y. Chang,D. G. Charlton,P. E. L. Clarke,E. Clay,I. Cohen,J. Couchman,A. Csilling,M. Cuffiani,S. Dado,G. M. Dallavalle,S. Dallison,A. De Roeck, E. A. De,Wolf,P. Dervan,K. Desch,B. Dienes,M. S. Dixit,M. Donkers,J. Dubbert,E. Duchovni,G. Duckeck,I. P. Duerdoth,E. Etzion,F. Fabbri,L. Feld,P. Ferrari,F. Fiedler,I. Fleck,M. Ford,A. Frey,A. Fürtjes,D. I. Futyan,P. Gagnon,J. W. Gary,G. Gaycken,C. Geich-Gimbel,G. Giacomelli,P. Giacomelli,D. Glenzinski,J. Goldberg,K. Graham,E. Gross,J. Grunhaus,M. Gruwé,P. O. Günther,A. Gupta,C. Hajdu,M. Hamann,G. G. Hanson,K. Harder,A. Harel,M. Harin-Dirac,M. Hauschild,J. Hauschildt,C. M. Hawkes,R. Hawkings,R. J. Hemingway,C. Hensel,G. Herten,R. D. Heuer,J. C. Hill,K. Hoffman,R. J. Homer,D. Horváth,K. R. Hossain,R. Howard,P. Hüntemeyer,P. Igo-Kemenes,K. Ishii,A. Jawahery,H. Jeremie,C. R. Jones,P. Jovanovic,T. R. Junk,N. Kanaya,J. Kanzaki,G. Karapetian,D. Karlen,V. Kartvelishvili,K. Kawagoe,T. Kawamoto,R. K. Keeler,R. G. Kellogg,B. W. Kennedy, D. H. Kim,K. Klein,A. Klier,S. Kluth,T. Kobayashi,M. Kobel,T. P. Kokott,S. Komamiya,R. V. Kowalewski,T. Krämer,T. Kress,P. Krieger,J. von Krogh,D. Krop,T. Kuhl,M. Kupper,P. Kyberd,G. D. Lafferty,H. Landsman,D. Lanske,I. Lawson,J. G. Layter,A. Leins,D. Lellouch,J. Letts,L. Levinson,J. Lillich,C. Littlewood,S. L. Lloyd,F. K. Loebinger,G. D. Long,M. J. Losty,J. Lu,J. Ludwig,A. Macchiolo,A. Macpherson,W. Mader,S. Marcellini,T. E. Marchant, A. J. Martin, J. P. Martin,G. Martinez,G. Masetti,T. Mashimo,P. Mättig,W. J. McDonald,J. McKenna,T. J. McMahon,R. A. McPherson,F. Meijers,P. Mendez-Lorenzo,W. Menges,F. S. Merritt, H. Mes,A. Michelini,S. Mihara,G. Mikenberg,D. J. Miller,S. Moed,W. Mohr, T. Mori,A. Mutter,K. Nagai,I. Nakamura,H. A. Neal,R. Nisius, S. W. O’Neale,A. Oh,A. Okpara,M. J. Oreglia, S. Orito,C. Pahl,G. Pásztor,J. R. Pater,G. N. Patrick,J. E. Pilcher,J. Pinfold,D. E. Plane,B. Poli,J. Polok,O. Pooth,A. Quadt,K. Rabbertz,C. Rembser,P. Renkel,H. Rick,N. Rodning,J. M. Roney,S. Rosati,K. Roscoe,Y. Rozen,K. Runge,D. R. Rust,K. Sachs,T. Saeki,O. Sahr, E. K. G. Sarkisyan,C. Sbarra,A. D. Schaile,O. Schaile,P. Scharff-Hansen,M. Schröder,M. Schumacher,C. Schwick, W. G. Scott,R. Seuster,T. G. Shears,B. C. Shen,C. H. Shepherd-Themistocleous,P. Sherwood,A. Skuja,A. M. Smith, G. A. Snow,R. Sobie,S. Söldner-Rembold,S. Spagnolo,F. Spano,M. Sproston,A. Stahl,K. Stephens,D. Strom,R. Ströhmer,L. Stumpf,B. Surrow,S. Tarem,M. Tasevsky,R. J. Taylor,R. Teuscher,J. Thomas,M. A. Thomson,E. Torrence,D. Toya,T. Trefzger,A. Tricoli,Z. Trócsányi,E. Tsur

semanticscholar（2001）

引用 0|浏览0

暂无评分

摘要

A search for single top quark production via flavour changing neutral currents (FCNC) was performed with data collected by the OPAL detector at the e +e− collider LEP. Approximately 600 pb −1 of data collected at √s = 189–209 GeV were used to search for the FCNC process e + − → tc(u)→ bWc(u). This analysis is sensitive to the leptonic and the hadronic decay modes of the W boson. No evidence for a FCNC process is observed. Upper limits at the 95% confidence level on the single top production cross-section as a function of the centre-of-mass energy are derived. Limits on the anomalous coupling parameters κγ andκZ are determined from these results.  2001 Elsevier Science B.V.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要