Search for single top quark production at LEP2
G. Abbiendi(Istituto Nazionale di Fisica Nucleare, Sezione di Bologna), C. Ainsley(Cavendish Hospital), P.F. Åkesson(University of Bonn), G. Alexander(Tel Aviv University), J. Allison(University of Manchester), G. Anagnostou(University of Birmingham), K. J. Anderson(Fermi National Accelerator Laboratory), S. Arcelli(University of Maryland, College Park), S. Asai(Kobe University), D. Axen(University of British Columbia), G. Azuelos(Université de Montréal), I. Bailey(University of Victoria), E. L. Barberio(European Organization for Nuclear Research), R. J. Barlow(University of Manchester), R.J. Batley(Cavendish Hospital), T. Behnke(Universität Hamburg), K. W. Bell(Rutherford Appleton Laboratory), P. J. Bell(University of Birmingham), G. Bella(Tel Aviv University), A. Bellerive(Carleton University), G. Benelli(University of California, Riverside), S. Bethke(Max Planck Society), O. Biebel(Max Planck Society), I.J. Bloodworth(University of Birmingham), O. E. Vickey Boeriu(University of Freiburg), P. Bock(Heidelberg University), J. Böhme(Universität Hamburg), D. Bonacorsi(University of Bologna), M. Boutemeur(Ludwig-Maximilians-Universität München), S. Braibant(European Organization for Nuclear Research), L. Brigliadori(University of Bologna), R. M. Brown(Rutherford Appleton Laboratory), H. Burckhart(European Organization for Nuclear Research), J. Cammin(University of Bonn), R.K. Carnegie(Carleton University), B. Caron(University of Alberta), A.A Carter(Queen Mary University of London), J.R Carter(Cavendish Hospital), C.Y. Chang(University of Maryland, College Park), D. G. Charlton(University of Birmingham), P. E. L. Clarke(University College London), E. Clay(University College London), I. Cohen(Tel Aviv University), J. Couchman(University College London), Á. Csilling(European Organization for Nuclear Research), M. Cuffiani(University of Bologna), S. Dado(Technion – Israel Institute of Technology), G. M. Dallavalle(University of Bologna), S. Dallison(Université de Montréal), A. De Roeck(European Organization for Nuclear Research), E. A. De Wolf(European Organization for Nuclear Research), P. Dervan(University College London), K. Desch(Universität Hamburg), B. Dienes(Carleton University), M.S. Dixit(Carleton University), M. Donkers(Carleton University), J. Dubbert(Ludwig-Maximilians-Universität München), E. Duchovni(Weizmann Institute of Science), G. Duckeck(Ludwig-Maximilians-Universität München), I. P. Duerdoth(University of Manchester), E. Etzion(Tel Aviv University), F. Fabbri(University of Bologna), L. Feld(University of Freiburg), Pamela Ferrari(Indiana University Bloomington), F. Fiedler(European Organization for Nuclear Research), I. Fleck(University of Freiburg), M. Ford(Cavendish Hospital), A. Frey(European Organization for Nuclear Research), A. Fürtjes(European Organization for Nuclear Research), D. I. Futyan(Istituto Nazionale di Fisica Nucleare, Sezione di Bologna), P. Gagnon(Indiana University Bloomington), J. W. Gary(University of California, Riverside), G. Gaycken(Universität Hamburg), C. Geich-Gimbel(University of Bonn), G. Giacomelli(University of Bologna), P Giacomelli(University of Chicago), D. Glenzinski(Technion – Israel Institute of Technology), J. Goldberg(University of Victoria), K. Graham(Weizmann Institute of Science), E. Gross(Tel Aviv University), J. Grunhaus(European Organization for Nuclear Research), M. Gruwé(University of Bonn), P. O. Günther(University of Chicago), A. Gupta(University of Maryland, College Park), C. Hajdu(Universität Hamburg), M. Hamann(Indiana University Bloomington), G. Hanson(Universität Hamburg), K. Harder(Technion – Israel Institute of Technology), A. Harel(University of California, Riverside), M. Harin-Dirac(European Organization for Nuclear Research), M. Hauschild(Universität Hamburg), J. Hauschildt(University of Birmingham), C. M. Hawkes(European Organization for Nuclear Research), R. J. Hawkings(Carleton University), R.J. Hemingway(Universität Hamburg), C. Hensel(University of Freiburg), G. Herten(Universität Hamburg), R.D. Heuer(University of Debrecen), J. C. Hill(University of Chicago), K. D. Hoffman(University of Birmingham), R.J. Homer(University of British Columbia), Dezső Horváth(University of Alberta), K. R. Hossain(University of British Columbia), Robert Howard(Universität Hamburg), P. Hüntemeyer(Heidelberg University), P. Igo-Kemenes(The University of Tokyo), K. Ishii(University of Maryland, College Park), A. Jawahery(Université de Montréal), H. Jérémie(University of Debrecen), C. R. Jones(University of Birmingham), P. Jovanović(Carleton University), T. R. Junk(University of Victoria), N. Kanaya(The University of Tokyo), J. Kanzaki(Université de Montréal), G. Karapetian(Carleton University), D. Karlen(Carleton University), V. Kartvelishvili(The University of Tokyo), K. Kawagoe(The University of Tokyo), T. Kawamoto(University of Victoria), R. Keeler(University of Maryland, College Park), R. G. Kellogg(Rutherford Appleton Laboratory), B. W. Kennedy(University of Oregon), D. H. Kim(Heidelberg University), K. Klein(Weizmann Institute of Science), A. Klier(Max Planck Society), S. Kluth(The University of Tokyo), T. Kobayashi(University of Bonn), M. Kobel(University of Bonn), T. Kokott(The University of Tokyo), S. Komamiya(University of Victoria), R. Kowalewski(Universität Hamburg), T. Krämer(University of California, Riverside), T. Kress(Carleton University), P. Krieger(Heidelberg University), J. von Krogh(Indiana University Bloomington), D. Krop(University of Bonn), T. Kühl(Weizmann Institute of Science), M. Kupper(Queen Mary University of London), P. Kyberd(University of Debrecen), G. Lafferty(Technion – Israel Institute of Technology), H. Landsman(University of British Columbia), D. Lanske(University of Victoria), I. Lawson(University of California, Riverside), J. G. Layter(Ludwig-Maximilians-Universität München), A. Leins(Weizmann Institute of Science), D. Lellouch(Indiana University Bloomington), J. Letts(Weizmann Institute of Science), L. J. Levinson(University of Freiburg), J. Lillich(University of Maryland, College Park), C. Littlewood(Queen Mary University of London), S. L. Lloyd(University of Debrecen), F. K. Loebinger(University of Victoria), G. D. Long(Carleton University), M. J. Losty(University of British Columbia), J. Lu(University of Freiburg), J. Ludwig(Université de Montréal), A. Macchiolo(University of Alberta), A. Macpherson(University of Bonn), W. Mader(University of Bologna), S. Marcellini(University of Debrecen), T.E. Marchant(Queen Mary University of London), A. Martin(Université de Montréal), J.P. Martin(University of Maryland, College Park), G. Martı́nez(University of Bologna), G. Masetti(The University of Tokyo), T. Mashimo(Weizmann Institute of Science), P. Mättig(University of Alberta), W.J. McDonald(University of British Columbia), J. A. McKenna(University of Birmingham), T. McMahon(University of Victoria), R. A. McPherson(European Organization for Nuclear Research), F. Meijers(Ludwig-Maximilians-Universität München), P. Mendez-Lorenzo(Universität Hamburg), W. Menges(University of Chicago), F. S. Merritt(Carleton University), H. Mes(University of Bologna), A. Michelini(The University of Tokyo), S. Mihara(Weizmann Institute of Science), G. Mikenberg(University College London), D.J. Miller(Technion – Israel Institute of Technology), S. Moêd(University of Freiburg), W. Mohr(The University of Tokyo), T. Mori(University of Freiburg), A. Mutter(Queen Mary University of London), K. Nagai(The University of Tokyo), I. Nakamura(Yale University), H. A. Neal(European Organization for Nuclear Research), R. Nisius(University of Birmingham), S.W. OʼNeale(European Organization for Nuclear Research), A. Oh(Heidelberg University), A. Okpara(University of Chicago), M. J. Oreglia(The University of Tokyo), S. Orito(Max Planck Society), C. Pahl(European Organization for Nuclear Research), G. Pásżtor(University of Debrecen), J. R. Pater(Rutherford Appleton Laboratory), G. N. Patrick(University of Chicago), J. E. Pilcher(University of Alberta), J. L. Pinfold(European Organization for Nuclear Research), D.E. Plane(University of Bologna), B. Poli(European Organization for Nuclear Research), J. Polok(European Organization for Nuclear Research), O. Pooth(University of Bonn), A. Quadt(European Organization for Nuclear Research), K. Rabbertz(European Organization for Nuclear Research), C. Rembser(Weizmann Institute of Science), P. Renkel(University of California, Riverside), H. Rick(University of Alberta), N. Rodning(University of Victoria), J. M. Roney(University of Bonn), S. Rosati(Rutherford Appleton Laboratory), K. Roscoe(Technion – Israel Institute of Technology), Y. Rozen(University of Freiburg), K. Runge(Indiana University Bloomington), D. R. Rust(Carleton University), K. Sachs(The University of Tokyo), T. Saeki(Ludwig-Maximilians-Universität München), O. Sahr(European Organization for Nuclear Research), E.K.G. Sarkisyan(University of Victoria), C. Sbarra(Ludwig-Maximilians-Universität München), A.D. Schaile(Ludwig-Maximilians-Universität München), O. Schaile(European Organization for Nuclear Research), P. Scharff-Hansen(European Organization for Nuclear Research), M. Schröder(Universität Hamburg), M. Schumacher(European Organization for Nuclear Research), C. Schwick(Rutherford Appleton Laboratory), W. G. Scott(Carleton University), R. Seuster(European Organization for Nuclear Research), T. Shears(University of California, Riverside), B. C. Shen(University of Debrecen), C. H. Shepherd-Themistocleous(University College London), P Sherwood(University of Maryland, College Park), A. Skuja(European Organization for Nuclear Research), Andrew Smith(University of Maryland, College Park), G. A. Snow(University of Victoria), R. Sobie(University of Freiburg), S. Söldner‐Rembold(Rutherford Appleton Laboratory), S. Spagnolo(University of Chicago), F. Spanò(Rutherford Appleton Laboratory), M. Sproston(University of Bonn), A. Stahl(Rutherford Appleton Laboratory), K. Stephens(University of Oregon), D. Strom(Ludwig-Maximilians-Universität München), R. Ströhmer(University of Victoria), L. Stumpf(Universität Hamburg), B. Surrow(Technion – Israel Institute of Technology), S. Tarem(European Organization for Nuclear Research), M. Taševský(University College London), RJ Taylor(University of Chicago), R. J. Teuscher(University College London), J. Thomas(University of Debrecen), M. Thomson(University of Oregon), E. Torrence(The University of Tokyo), D. Toya(Ludwig-Maximilians-Universität München), T. Trefzger(University of Bologna), A. Tricoli(European Organization for Nuclear Research), I. M. Trigger(Université de Montréal), Z. L. Trócsányi(Tel Aviv University), E. Tsur(University of Birmingham), M. F. Watson(The University of Tokyo), I. Ueda(Carleton University), B. Ujvári(University of Victoria), B. Vachon(Ludwig-Maximilians-Universität München), C.F. Vollmer(University of Freiburg), P. Vannerem(University of Maryland, College Park), M. Verzocchi(European Organization for Nuclear Research), H. Voss(European Organization for Nuclear Research), J. H. Vossebeld(Carleton University), D. Waller(University of Debrecen), C. P. Ward(University of Debrecen), D. R. Ward(University of Birmingham), P. M. Watkins(University of Birmingham), A. T. Watson(University of Birmingham), N. K. Watson(European Organization for Nuclear Research), P. S. Wells(European Organization for Nuclear Research), T. Wengler(University of Bonn), N. Wermes(Heidelberg University), D. Wetterling(University of Debrecen), G. Wilson(University of Birmingham), J. A. Wilson(University of Debrecen), T. R. Wyatt(The University of Tokyo), Shinji Yamashita(Université de Montréal), V. Zacek(European Organization for Nuclear Research), D. Zer-Zion
Cited by 73Open Access
Abstract
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+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 and κZ are determined from these results.
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