Search for a scalar top quark using the OPAL detector

R. Akers; G. Alexander; J. Allison; K. J. Anderson; S. Arcelli; S. Asai; A. Astbury; D. Axen; G. Azuelos; A. H. Ball; E. Barberio; R. J. Barlow; R. Bartoldus; J. R. Batley; G. Beaudoin; A. Beck; G. A. Beck; J. Becker; C. Beeston; T. Behnke; K. W. Bell; G. Bella; P. Bentkowski; S. Bentvelsen; P. Berlich; S. Bethke; O. Biebel; I. J. Bloodworth; P. Bock; H. M. Bosch; M. Boutemeur; S. Braibant; P. Bright-Thomas; R. M. Brown; A. Buijs; H. J. Burckhart; C. Burgard; P. Capiluppi; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; C. Charlesworth; D. G. Charlton; S. L. Chu; P. E.L. Clarke; J. C. Clayton; S. G. Clowes; I. Cohen; J. E. Conboy; M. Coupland; M. Cuffiani; S. Dado; C. Dallapiccola; G. M. Dallavalle; C. Darling; S. De Jong; H. Deng; M. Dittmar; M. S. Dixit; E. do Couto e Silva; J. E. Duboscq; E. Duchovni; G. Duckeck; I. P. Duerdoth; U. C. Dunwoody; P. A. Elcombe; P. G. Estabrooks; E. Etzion; H. G. Evans; F. Fabbri; B. Fabbro; M. Fanti; M. Fierro; M. Fincke-Keeler; H. M. Fischer; P. Fischer; R. Folman; D. G. Fong; M. Foucher; H. Fukui; A. Fürtjes; P. Gagnon; A. Gaidot; J. W. Gary; J. Gascon; N. I. Geddes; C. Geich-Gimbel; S. W. Gensler; F. X. Gentit; T. Geralis; G. Giacomelli; P. Giacomelli; R. Giacomelli; V. Gibson; W. R. Gibson; J. D. Gillies; J. Goldberg; D. M. Gingrich; M. J. Goodrick; W. Gorn; C. Grandi; P. Grannis; E. Gross; J. Hagemann; G. G. Hanson; M. Hansroul; C. K. Hargrove; J. Hart; P. A. Hart; M. Hauschild; C. M. Hawkes; E. Heflin; R. J. Hemingway; G. Herten; R. D. Heuer; J. C. Hill; S. J. Hillier; T. Hilse; D. A. Hinshaw; P. R. Hobson; D. Hochman; A. Höcker; R. J. Homer; A. K. Honma; R. E. Hughes-Jones; R. Humbert; P. Igo-Kemenes; H. Ihssen; D. C. Imrie; A. Jawahery; P. W. Jeffreys; H. Jeremie; M. Jimack; M. Jones; R. W.L. Jones; P. Jovanovic; C. Jui; D. Karlen; K. Kawagoe; T. Kawamoto; R. K. Keeler; R. G. Kellogg; B. W. Kennedy; B. King; J. King; S. Kluth; T. Kobayashi; M. Kobel; D. S. Koetke; T. P. Kokott; S. Komamiya; R. Kowalewski; R. Howard; P. Krieger; J. von Krogh; P. Kyberd; G. D. Lafferty; H. Lafoux; R. Lahmann; J. Lauber; J. G. Layter; P. Leblanc; P. Le Du; A. M. Lee; E. Lefebvre; M. H. Lehto; D. Lellouch; C. Leroy; J. Letts; L. Levinson; Z. Li; F. Liu; S. L. Lloyd; F. K. Loebinger; G. D. Long; B. Lorazo; M. J. Losty; X. C. Lou; J. Ludwig; A. Luig; M. Mannelli; S. Marcellini; C. Markus; A. J. Martin; J. P. Martin; T. Mashimo; P. Mättig; U. Maur; J. McKenna; T. J. McMahon; A. I. McNab; J. R. McNutt; F. Meijers; F. S. Merritt; H. Mes; A. Michelini; R. P. Middleton; G. Mikenberg; J. Mildenberger; D. J. Miller; R. Mir; W. Mohr; C. Moisan; A. Montanari; T. Mori; M. Morii; U. Müller; B. Nellen; B. Nijjhar; S. W. O'Neale; F. G. Oakham; F. Odorici; H. O. Ogren; C. J. Oram; M. J. Oreglia; S. Orito; J. P. Pansart; G. N. Patrick; M. J. Pearce; P. Pfister; P. D. Phillips; J. E. Pilcher; J. Pinfold; D. Pitman; D. E. Plane; P. Poffenberger; B. Poli; A. Posthaus; T. W. Pritchard; H. Przysiezniak; M. W. Redmond; D. L. Rees; D. Rigby; M. Rison; S. A. Robins; D. Robinson; J. M. Roney; E. Ros; S. Rossberg; A. M. Rossi; M. Rosvick; P. Routenburg; Y. Rozen; K. Runge; O. Runolfsson; D. R. Rust; M. Sasaki; C. Sbarra; A. D. Schaile; O. Schaile; F. Scharf; P. Scharff-Hansen; P. Schenk; B. Schmitt; H. von der Schmitt; M. Schröder; H. C. Schultz-Coulon; P. Schütz; M. Schulz; C. Schwick; J. Schwiening; W. G. Scott; M. Settles; T. G. Shears; B. C. Shen; C. H. Shepherd-Themistocleous; P. Sherwood; G. P. Siroli; A. Skillman; A. Skuja; A. M. Smith; T. J. Smith; G. A. Snow; R. Sobie; R. W. Springer; M. Sproston; A. Stahl; C. Stegmann; K. Stephens; J. Steuerer; B. Stockhausen; R. Ströhmer; D. Strom; P. Szymanski; H. Takeda; T. Takeshita; S. Tarem; M. Tecchio; P. Teixeira-Dias; N. Tesch; M. A. Thomson; S. Towers; T. Tsukamoto; M. F. Turner-Watson; D. Van den plas; R. Van Kooten; G. Vasseur; M. Vincter; A. Wagner; D. L. Wagner; C. P. Ward; D. R. Ward; J. J. Ward; P. M. Watkins; A. T. Watson; N. K. Watson; P. Weber; P. S. Wells; N. Wermes; B. Wilkens; G. W. Wilson; J. A. Wilson; V. H. Winterer; T. Wlodek; G. Wolf; S. Wotton; T. R. Wyatt; A. Yeaman; G. Yekutieli; M. Yurko; W. Zeuner; G. T. Zorn

doi:10.1016/0370-2693(94)91470-2

Search for a scalar top quark using the OPAL detector

R. Akers^*, G. Alexander, J. Allison, K. J. Anderson, S. Arcelli, S. Asai, A. Astbury, D. Axen, G. Azuelos, A. H. Ball, E. Barberio, R. J. Barlow, R. Bartoldus, J. R. Batley, G. Beaudoin, A. Beck, G. A. Beck, J. Becker, C. Beeston, T. BehnkeK. W. Bell, G. Bella, P. Bentkowski, S. Bentvelsen, P. Berlich, S. Bethke, O. Biebel, I. J. Bloodworth, P. Bock, H. M. Bosch, M. Boutemeur, S. Braibant, P. Bright-Thomas, R. M. Brown, A. Buijs, H. J. Burckhart, C. Burgard, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, C. Charlesworth, D. G. Charlton, S. L. Chu, P. E.L. Clarke, J. C. Clayton, S. G. Clowes, I. Cohen, J. E. Conboy, M. Coupland, M. Cuffiani, S. Dado, C. Dallapiccola, G. M. Dallavalle, C. Darling, S. De Jong, H. Deng, M. Dittmar, M. S. Dixit, E. do Couto e Silva, J. E. Duboscq, E. Duchovni, G. Duckeck, I. P. Duerdoth, U. C. Dunwoody, P. A. Elcombe, P. G. Estabrooks, E. Etzion, H. G. Evans, F. Fabbri, B. Fabbro, M. Fanti, M. Fierro, M. Fincke-Keeler, H. M. Fischer, P. Fischer, R. Folman, D. G. Fong, M. Foucher, H. Fukui, A. Fürtjes, P. Gagnon, A. Gaidot, J. W. Gary, J. Gascon, N. I. Geddes, C. Geich-Gimbel, S. W. Gensler, F. X. Gentit, T. Geralis, G. Giacomelli, P. Giacomelli, R. Giacomelli, V. Gibson, W. R. Gibson, J. D. Gillies, J. Goldberg, D. M. Gingrich, M. J. Goodrick, W. Gorn, C. Grandi, P. Grannis, E. Gross, J. Hagemann, G. G. Hanson, M. Hansroul, C. K. Hargrove, J. Hart, P. A. Hart, M. Hauschild, C. M. Hawkes, E. Heflin, R. J. Hemingway, G. Herten, R. D. Heuer, J. C. Hill, S. J. Hillier, T. Hilse, D. A. Hinshaw, P. R. Hobson, D. Hochman, A. Höcker, R. J. Homer, A. K. Honma, R. E. Hughes-Jones, R. Humbert, P. Igo-Kemenes, H. Ihssen, D. C. Imrie, A. Jawahery, P. W. Jeffreys, H. Jeremie, M. Jimack, M. Jones, R. W.L. Jones, P. Jovanovic, C. Jui, D. Karlen, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, B. King, J. King, S. Kluth, T. Kobayashi, M. Kobel, D. S. Koetke, T. P. Kokott, S. Komamiya, R. Kowalewski, R. Howard, P. Krieger, J. von Krogh, P. Kyberd, G. D. Lafferty, H. Lafoux, R. Lahmann, J. Lauber, J. G. Layter, P. Leblanc, P. Le Du, A. M. Lee, E. Lefebvre, M. H. Lehto, D. Lellouch, C. Leroy, J. Letts, L. Levinson, Z. Li, F. Liu, S. L. Lloyd, F. K. Loebinger, G. D. Long, B. Lorazo, M. J. Losty, X. C. Lou, J. Ludwig, A. Luig, M. Mannelli, S. Marcellini, C. Markus, A. J. Martin, J. P. Martin, T. Mashimo, P. Mättig, U. Maur, J. McKenna, T. J. McMahon, A. I. McNab, J. R. McNutt, F. Meijers, F. S. Merritt, H. Mes, A. Michelini, R. P. Middleton, G. Mikenberg, J. Mildenberger, D. J. Miller, R. Mir, W. Mohr, C. Moisan, A. Montanari, T. Mori, M. Morii, U. Müller, B. Nellen, B. Nijjhar, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, C. J. Oram, M. J. Oreglia, S. Orito, J. P. Pansart, G. N. Patrick, M. J. Pearce, P. Pfister, P. D. Phillips, J. E. Pilcher, J. Pinfold, D. Pitman, D. E. Plane, P. Poffenberger, B. Poli, A. Posthaus, T. W. Pritchard, H. Przysiezniak, M. W. Redmond, D. L. Rees, D. Rigby, M. Rison, S. A. Robins, D. Robinson, J. M. Roney, E. Ros, S. Rossberg, A. M. Rossi, M. Rosvick, P. Routenburg, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, M. Sasaki, C. Sbarra, A. D. Schaile, O. Schaile, F. Scharf, P. Scharff-Hansen, P. Schenk, B. Schmitt, H. von der Schmitt, M. Schröder, H. C. Schultz-Coulon, P. Schütz, M. Schulz, C. Schwick, J. Schwiening, W. G. Scott, M. Settles, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skillman, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, R. Sobie, R. W. Springer, M. Sproston, A. Stahl, C. Stegmann, K. Stephens, J. Steuerer, B. Stockhausen, R. Ströhmer, D. Strom, P. Szymanski, H. Takeda, T. Takeshita, S. Tarem, M. Tecchio, P. Teixeira-Dias, N. Tesch, M. A. Thomson, S. Towers, T. Tsukamoto, M. F. Turner-Watson, D. Van den plas, R. Van Kooten, G. Vasseur, M. Vincter, A. Wagner, D. L. Wagner, C. P. Ward, D. R. Ward, J. J. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. Weber, P. S. Wells, N. Wermes, B. Wilkens, G. W. Wilson, J. A. Wilson, V. H. Winterer, T. Wlodek, G. Wolf, S. Wotton, T. R. Wyatt, A. Yeaman, G. Yekutieli, M. Yurko, W. Zeuner, G. T. Zorn

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A search for a supersymmetric partner of the top quark (t̃₁) has been performed by the OPAL experiment in e⁺e^- collisions at LEP. The integrated luminosity of the data sample analysed was 69.1 pb^-1, which corresponds to 1.68 × 10⁶ produced Z⁰ → qq̄ events. No t̃₁ candidates have been found. This study excludes the existence of the t̃₁ with a mass below 45.1 GeV at 95% C.L., where the mixing angle of left- and right-handed partners is smaller than 0.85 rad or greater than 1.15 rad, and the mass difference between the t̃₁ and the lightest neutralino is greater than 5 GeV.

Original language	English
Pages (from-to)	207-218
Number of pages	12
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	337
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(94)91470-2
State	Published - 6 Oct 1994

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10.1016/0370-2693(94)91470-2

Cite this

Akers, R., Alexander, G., Allison, J., Anderson, K. J., Arcelli, S., Asai, S., Astbury, A., Axen, D., Azuelos, G., Ball, A. H., Barberio, E., Barlow, R. J., Bartoldus, R., Batley, J. R., Beaudoin, G., Beck, A., Beck, G. A., Becker, J., Beeston, C., ... Zorn, G. T. (1994). Search for a scalar top quark using the OPAL detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 337(1-2), 207-218. https://doi.org/10.1016/0370-2693(94)91470-2

@article{52962ff7f6134993b8add4aed46a93f8,

title = "Search for a scalar top quark using the OPAL detector",

abstract = "A search for a supersymmetric partner of the top quark ({\~t}1) has been performed by the OPAL experiment in e+e- collisions at LEP. The integrated luminosity of the data sample analysed was 69.1 pb-1, which corresponds to 1.68 × 106 produced Z0 → q{\=q} events. No {\~t}1 candidates have been found. This study excludes the existence of the {\~t}1 with a mass below 45.1 GeV at 95% C.L., where the mixing angle of left- and right-handed partners is smaller than 0.85 rad or greater than 1.15 rad, and the mass difference between the {\~t}1 and the lightest neutralino is greater than 5 GeV.",

author = "R. Akers and G. Alexander and J. Allison and Anderson, {K. J.} and S. Arcelli and S. Asai and A. Astbury and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and G. Beaudoin and A. Beck and Beck, {G. A.} and J. Becker and C. Beeston and T. Behnke and Bell, {K. W.} and G. Bella and P. Bentkowski and S. Bentvelsen and P. Berlich and S. Bethke and O. Biebel and Bloodworth, {I. J.} and P. Bock and Bosch, {H. M.} and M. Boutemeur and S. Braibant and P. Bright-Thomas and Brown, {R. M.} and A. Buijs and Burckhart, {H. J.} and C. Burgard and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and C. Charlesworth and Charlton, {D. G.} and Chu, {S. L.} and Clarke, {P. E.L.} and Clayton, {J. C.} and Clowes, {S. G.} and I. Cohen and Conboy, {J. E.} and M. Coupland and M. Cuffiani and S. Dado and C. Dallapiccola and Dallavalle, {G. M.} and C. Darling and {De Jong}, S. and H. Deng and M. Dittmar and Dixit, {M. S.} and {do Couto e Silva}, E. and Duboscq, {J. E.} and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and Dunwoody, {U. C.} and Elcombe, {P. A.} and Estabrooks, {P. G.} and E. Etzion and Evans, {H. G.} and F. Fabbri and B. Fabbro and M. Fanti and M. Fierro and M. Fincke-Keeler and Fischer, {H. M.} and P. Fischer and R. Folman and Fong, {D. G.} and M. Foucher and H. Fukui and A. F{\"u}rtjes and P. Gagnon and A. Gaidot and Gary, {J. W.} and J. Gascon and Geddes, {N. I.} and C. Geich-Gimbel and Gensler, {S. W.} and Gentit, {F. X.} and T. Geralis and G. Giacomelli and P. Giacomelli and R. Giacomelli and V. Gibson and Gibson, {W. R.} and Gillies, {J. D.} and J. Goldberg and Gingrich, {D. M.} and Goodrick, {M. J.} and W. Gorn and C. Grandi and P. Grannis and E. Gross and J. Hagemann and Hanson, {G. G.} and M. Hansroul and Hargrove, {C. K.} and J. Hart and Hart, {P. A.} and M. Hauschild and Hawkes, {C. M.} and E. Heflin and Hemingway, {R. J.} and G. Herten and Heuer, {R. D.} and Hill, {J. C.} and Hillier, {S. J.} and T. Hilse and Hinshaw, {D. A.} and Hobson, {P. R.} and D. Hochman and A. H{\"o}cker and Homer, {R. J.} and Honma, {A. K.} and Hughes-Jones, {R. E.} and R. Humbert and P. Igo-Kemenes and H. Ihssen and Imrie, {D. C.} and A. Jawahery and Jeffreys, {P. W.} and H. Jeremie and M. Jimack and M. Jones and Jones, {R. W.L.} and P. Jovanovic and C. Jui and D. Karlen and K. Kawagoe and T. Kawamoto and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and B. King and J. King and S. Kluth and T. Kobayashi and M. Kobel and Koetke, {D. S.} and Kokott, {T. P.} and S. Komamiya and R. Kowalewski and R. Howard and P. Krieger and {von Krogh}, J. and P. Kyberd and Lafferty, {G. D.} and H. Lafoux and R. Lahmann and J. Lauber and Layter, {J. G.} and P. Leblanc and {Le Du}, P. and Lee, {A. M.} and E. Lefebvre and Lehto, {M. H.} and D. Lellouch and C. Leroy and J. Letts and L. Levinson and Z. Li and F. Liu and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and B. Lorazo and Losty, {M. J.} and Lou, {X. C.} and J. Ludwig and A. Luig and M. Mannelli and S. Marcellini and C. Markus and Martin, {A. J.} and Martin, {J. P.} and T. Mashimo and P. M{\"a}ttig and U. Maur and J. McKenna and McMahon, {T. J.} and McNab, {A. I.} and McNutt, {J. R.} and F. Meijers and Merritt, {F. S.} and H. Mes and A. Michelini and Middleton, {R. P.} and G. Mikenberg and J. Mildenberger and Miller, {D. J.} and R. Mir and W. Mohr and C. Moisan and A. Montanari and T. Mori and M. Morii and U. M{\"u}ller and B. Nellen and B. Nijjhar and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and Ogren, {H. O.} and Oram, {C. J.} and Oreglia, {M. J.} and S. Orito and Pansart, {J. P.} and Patrick, {G. N.} and Pearce, {M. J.} and P. Pfister and Phillips, {P. D.} and Pilcher, {J. E.} and J. Pinfold and D. Pitman and Plane, {D. E.} and P. Poffenberger and B. Poli and A. Posthaus and Pritchard, {T. W.} and H. Przysiezniak and Redmond, {M. W.} and Rees, {D. L.} and D. Rigby and M. Rison and Robins, {S. A.} and D. Robinson and Roney, {J. M.} and E. Ros and S. Rossberg and Rossi, {A. M.} and M. Rosvick and P. Routenburg and Y. Rozen and K. Runge and O. Runolfsson and Rust, {D. R.} and M. Sasaki and C. Sbarra and Schaile, {A. D.} and O. Schaile and F. Scharf and P. Scharff-Hansen and P. Schenk and B. Schmitt and {von der Schmitt}, H. and M. Schr{\"o}der and Schultz-Coulon, {H. C.} and P. Sch{\"u}tz and M. Schulz and C. Schwick and J. Schwiening and Scott, {W. G.} and M. Settles and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Skillman and A. Skuja and Smith, {A. M.} and Smith, {T. J.} and Snow, {G. A.} and R. Sobie and Springer, {R. W.} and M. Sproston and A. Stahl and C. Stegmann and K. Stephens and J. Steuerer and B. Stockhausen and R. Str{\"o}hmer and D. Strom and P. Szymanski and H. Takeda and T. Takeshita and S. Tarem and M. Tecchio and P. Teixeira-Dias and N. Tesch and Thomson, {M. A.} and S. Towers and T. Tsukamoto and Turner-Watson, {M. F.} and {Van den plas}, D. and {Van Kooten}, R. and G. Vasseur and M. Vincter and A. Wagner and Wagner, {D. L.} and Ward, {C. P.} and Ward, {D. R.} and Ward, {J. J.} and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and P. Weber and Wells, {P. S.} and N. Wermes and B. Wilkens and Wilson, {G. W.} and Wilson, {J. A.} and Winterer, {V. H.} and T. Wlodek and G. Wolf and S. Wotton and Wyatt, {T. R.} and A. Yeaman and G. Yekutieli and M. Yurko and W. Zeuner and Zorn, {G. T.}",

note = "Funding Information: Sincere thanks are due to K. Hagiwara (KEK) and T. Kon (Seikei Univ.) for useful discussions. It is a pleasure to thank the SL Division for the efficient operation of the LEP accelerator, the precise information on the absolute energy, and their continuing close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Texas National Research Laboratory Commission, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Fussefeld Foundation, Israeli Ministry of Energy and Ministry of Science, Minerva Gesellschaft, Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, German Israeli Bi-national Science Foundation (GIF), Direction des Sciences de la Mati~re du Commissariat l'Energie Atomique, France, Bundesministerium ftir Forschung und Technologie, Germany, National Research Council of Canada, A.R Sloan Foundation and Junta Nacional de Investigagfio Cient\[fica e Tecnol6gica, Portugal.",

year = "1994",

month = oct,

day = "6",

doi = "10.1016/0370-2693(94)91470-2",

language = "אנגלית",

volume = "337",

pages = "207--218",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

Akers, R, Alexander, G, Allison, J, Anderson, KJ, Arcelli, S, Asai, S, Astbury, A, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Beaudoin, G, Beck, A, Beck, GA, Becker, J, Beeston, C, Behnke, T, Bell, KW, Bella, G, Bentkowski, P, Bentvelsen, S, Berlich, P, Bethke, S, Biebel, O, Bloodworth, IJ, Bock, P, Bosch, HM, Boutemeur, M, Braibant, S, Bright-Thomas, P, Brown, RM, Buijs, A, Burckhart, HJ, Burgard, C, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlesworth, C, Charlton, DG, Chu, SL, Clarke, PEL, Clayton, JC, Clowes, SG, Cohen, I, Conboy, JE, Coupland, M, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Darling, C, De Jong, S, Deng, H, Dittmar, M, Dixit, MS, do Couto e Silva, E, Duboscq, JE, Duchovni, E, Duckeck, G, Duerdoth, IP, Dunwoody, UC, Elcombe, PA, Estabrooks, PG, Etzion, E, Evans, HG, Fabbri, F, Fabbro, B, Fanti, M, Fierro, M, Fincke-Keeler, M, Fischer, HM, Fischer, P, Folman, R, Fong, DG, Foucher, M, Fukui, H, Fürtjes, A, Gagnon, P, Gaidot, A, Gary, JW, Gascon, J, Geddes, NI, Geich-Gimbel, C, Gensler, SW, Gentit, FX, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gillies, JD, Goldberg, J, Gingrich, DM, Goodrick, MJ, Gorn, W, Grandi, C, Grannis, P, Gross, E, Hagemann, J, Hanson, GG, Hansroul, M, Hargrove, CK, Hart, J, Hart, PA, Hauschild, M, Hawkes, CM, Heflin, E, Hemingway, RJ, Herten, G, Heuer, RD, Hill, JC, Hillier, SJ, Hilse, T, Hinshaw, DA, Hobson, PR, Hochman, D, Höcker, A, Homer, RJ, Honma, AK, Hughes-Jones, RE, Humbert, R, Igo-Kemenes, P, Ihssen, H, Imrie, DC, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Jones, M, Jones, RWL, Jovanovic, P, Jui, C, Karlen, D, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, King, B, King, J, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Komamiya, S, Kowalewski, R, Howard, R, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lafoux, H, Lahmann, R, Lauber, J, Layter, JG, Leblanc, P, Le Du, P, Lee, AM, Lefebvre, E, Lehto, MH, Lellouch, D, Leroy, C, Letts, J, Levinson, L, Li, Z, Liu, F, Lloyd, SL, Loebinger, FK, Long, GD, Lorazo, B, Losty, MJ, Lou, XC, Ludwig, J, Luig, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Mashimo, T, Mättig, P, Maur, U, McKenna, J, McMahon, TJ, McNab, AI, McNutt, JR, Meijers, F, Merritt, FS, Mes, H, Michelini, A, Middleton, RP, Mikenberg, G, Mildenberger, J, Miller, DJ, Mir, R, Mohr, W, Moisan, C, Montanari, A, Mori, T, Morii, M, Müller, U, Nellen, B, Nijjhar, B, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oram, CJ, Oreglia, MJ, Orito, S, Pansart, JP, Patrick, GN, Pearce, MJ, Pfister, P, Phillips, PD, Pilcher, JE, Pinfold, J, Pitman, D, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Pritchard, TW, Przysiezniak, H, Redmond, MW, Rees, DL, Rigby, D, Rison, M, Robins, SA, Robinson, D, Roney, JM, Ros, E, Rossberg, S, Rossi, AM, Rosvick, M, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Sasaki, M, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schmitt, B, von der Schmitt, H, Schröder, M, Schultz-Coulon, HC, Schütz, P, Schulz, M, Schwick, C, Schwiening, J, Scott, WG, Settles, M, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skillman, A, Skuja, A, Smith, AM, Smith, TJ, Snow, GA, Sobie, R, Springer, RW, Sproston, M, Stahl, A, Stegmann, C, Stephens, K, Steuerer, J, Stockhausen, B, Ströhmer, R, Strom, D, Szymanski, P, Takeda, H, Takeshita, T, Tarem, S, Tecchio, M, Teixeira-Dias, P, Tesch, N, Thomson, MA, Towers, S, Tsukamoto, T, Turner-Watson, MF, Van den plas, D, Van Kooten, R, Vasseur, G, Vincter, M, Wagner, A, Wagner, DL, Ward, CP, Ward, DR, Ward, JJ, Watkins, PM, Watson, AT, Watson, NK, Weber, P, Wells, PS, Wermes, N, Wilkens, B, Wilson, GW, Wilson, JA, Winterer, VH, Wlodek, T, Wolf, G, Wotton, S, Wyatt, TR, Yeaman, A, Yekutieli, G, Yurko, M, Zeuner, W & Zorn, GT 1994, 'Search for a scalar top quark using the OPAL detector', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 337, no. 1-2, pp. 207-218. https://doi.org/10.1016/0370-2693(94)91470-2

TY - JOUR

T1 - Search for a scalar top quark using the OPAL detector

AU - Akers, R.

AU - Alexander, G.

AU - Allison, J.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Asai, S.

AU - Astbury, A.

AU - Axen, D.

AU - Azuelos, G.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Beaudoin, G.

AU - Beck, A.

AU - Beck, G. A.

AU - Becker, J.

AU - Beeston, C.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bentkowski, P.

AU - Bentvelsen, S.

AU - Berlich, P.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Bock, P.

AU - Bosch, H. M.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brown, R. M.

AU - Buijs, A.

AU - Burckhart, H. J.

AU - Burgard, C.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlesworth, C.

AU - Charlton, D. G.

AU - Chu, S. L.

AU - Clarke, P. E.L.

AU - Clayton, J. C.

AU - Clowes, S. G.

AU - Cohen, I.

AU - Conboy, J. E.

AU - Coupland, M.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallapiccola, C.

AU - Dallavalle, G. M.

AU - Darling, C.

AU - De Jong, S.

AU - Deng, H.

AU - Dittmar, M.

AU - Dixit, M. S.

AU - do Couto e Silva, E.

AU - Duboscq, J. E.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Dunwoody, U. C.

AU - Elcombe, P. A.

AU - Estabrooks, P. G.

AU - Etzion, E.

AU - Evans, H. G.

AU - Fabbri, F.

AU - Fabbro, B.

AU - Fanti, M.

AU - Fierro, M.

AU - Fincke-Keeler, M.

AU - Fischer, H. M.

AU - Fischer, P.

AU - Folman, R.

AU - Fong, D. G.

AU - Foucher, M.

AU - Fukui, H.

AU - Fürtjes, A.

AU - Gagnon, P.

AU - Gaidot, A.

AU - Gary, J. W.

AU - Gascon, J.

AU - Geddes, N. I.

AU - Geich-Gimbel, C.

AU - Gensler, S. W.

AU - Gentit, F. X.

AU - Geralis, T.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Giacomelli, R.

AU - Gibson, V.

AU - Gibson, W. R.

AU - Gillies, J. D.

AU - Goldberg, J.

AU - Gingrich, D. M.

AU - Goodrick, M. J.

AU - Gorn, W.

AU - Grandi, C.

AU - Grannis, P.

AU - Gross, E.

AU - Hagemann, J.

AU - Hanson, G. G.

AU - Hansroul, M.

AU - Hargrove, C. K.

AU - Hart, J.

AU - Hart, P. A.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Heflin, E.

AU - Hemingway, R. J.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hill, J. C.

AU - Hillier, S. J.

AU - Hilse, T.

AU - Hinshaw, D. A.

AU - Hobson, P. R.

AU - Hochman, D.

AU - Höcker, A.

AU - Homer, R. J.

AU - Honma, A. K.

AU - Hughes-Jones, R. E.

AU - Humbert, R.

AU - Igo-Kemenes, P.

AU - Ihssen, H.

AU - Imrie, D. C.

AU - Jawahery, A.

AU - Jeffreys, P. W.

AU - Jeremie, H.

AU - Jimack, M.

AU - Jones, M.

AU - Jones, R. W.L.

AU - Jovanovic, P.

AU - Jui, C.

AU - Karlen, D.

AU - Kawagoe, K.

AU - Kawamoto, T.

AU - Keeler, R. K.

AU - Kellogg, R. G.

AU - Kennedy, B. W.

AU - King, B.

AU - King, J.

AU - Kluth, S.

AU - Kobayashi, T.

AU - Kobel, M.

AU - Koetke, D. S.

AU - Kokott, T. P.

AU - Komamiya, S.

AU - Kowalewski, R.

AU - Howard, R.

AU - Krieger, P.

AU - von Krogh, J.

AU - Kyberd, P.

AU - Lafferty, G. D.

AU - Lafoux, H.

AU - Lahmann, R.

AU - Lauber, J.

AU - Layter, J. G.

AU - Leblanc, P.

AU - Le Du, P.

AU - Lee, A. M.

AU - Lefebvre, E.

AU - Lehto, M. H.

AU - Lellouch, D.

AU - Leroy, C.

AU - Letts, J.

AU - Levinson, L.

AU - Li, Z.

AU - Liu, F.

AU - Lloyd, S. L.

AU - Loebinger, F. K.

AU - Long, G. D.

AU - Lorazo, B.

AU - Losty, M. J.

AU - Lou, X. C.

AU - Ludwig, J.

AU - Luig, A.

AU - Mannelli, M.

AU - Marcellini, S.

AU - Markus, C.

AU - Martin, A. J.

AU - Martin, J. P.

AU - Mashimo, T.

AU - Mättig, P.

AU - Maur, U.

AU - McKenna, J.

AU - McMahon, T. J.

AU - McNab, A. I.

AU - McNutt, J. R.

AU - Meijers, F.

AU - Merritt, F. S.

AU - Mes, H.

AU - Michelini, A.

AU - Middleton, R. P.

AU - Mikenberg, G.

AU - Mildenberger, J.

AU - Miller, D. J.

AU - Mir, R.

AU - Mohr, W.

AU - Moisan, C.

AU - Montanari, A.

AU - Mori, T.

AU - Morii, M.

AU - Müller, U.

AU - Nellen, B.

AU - Nijjhar, B.

AU - O'Neale, S. W.

AU - Oakham, F. G.

AU - Odorici, F.

AU - Ogren, H. O.

AU - Oram, C. J.

AU - Oreglia, M. J.

AU - Orito, S.

AU - Pansart, J. P.

AU - Patrick, G. N.

AU - Pearce, M. J.

AU - Pfister, P.

AU - Phillips, P. D.

AU - Pilcher, J. E.

AU - Pinfold, J.

AU - Pitman, D.

AU - Plane, D. E.

AU - Poffenberger, P.

AU - Poli, B.

AU - Posthaus, A.

AU - Pritchard, T. W.

AU - Przysiezniak, H.

AU - Redmond, M. W.

AU - Rees, D. L.

AU - Rigby, D.

AU - Rison, M.

AU - Robins, S. A.

AU - Robinson, D.

AU - Roney, J. M.

AU - Ros, E.

AU - Rossberg, S.

AU - Rossi, A. M.

AU - Rosvick, M.

AU - Routenburg, P.

AU - Rozen, Y.

AU - Runge, K.

AU - Runolfsson, O.

AU - Rust, D. R.

AU - Sasaki, M.

AU - Sbarra, C.

AU - Schaile, A. D.

AU - Schaile, O.

AU - Scharf, F.

AU - Scharff-Hansen, P.

AU - Schenk, P.

AU - Schmitt, B.

AU - von der Schmitt, H.

AU - Schröder, M.

AU - Schultz-Coulon, H. C.

AU - Schütz, P.

AU - Schulz, M.

AU - Schwick, C.

AU - Schwiening, J.

AU - Scott, W. G.

AU - Settles, M.

AU - Shears, T. G.

AU - Shen, B. C.

AU - Shepherd-Themistocleous, C. H.

AU - Sherwood, P.

AU - Siroli, G. P.

AU - Skillman, A.

AU - Skuja, A.

AU - Smith, A. M.

AU - Smith, T. J.

AU - Snow, G. A.

AU - Sobie, R.

AU - Springer, R. W.

AU - Sproston, M.

AU - Stahl, A.

AU - Stegmann, C.

AU - Stephens, K.

AU - Steuerer, J.

AU - Stockhausen, B.

AU - Ströhmer, R.

AU - Strom, D.

AU - Szymanski, P.

AU - Takeda, H.

AU - Takeshita, T.

AU - Tarem, S.

AU - Tecchio, M.

AU - Teixeira-Dias, P.

AU - Tesch, N.

AU - Thomson, M. A.

AU - Towers, S.

AU - Tsukamoto, T.

AU - Turner-Watson, M. F.

AU - Van den plas, D.

AU - Van Kooten, R.

AU - Vasseur, G.

AU - Vincter, M.

AU - Wagner, A.

AU - Wagner, D. L.

AU - Ward, C. P.

AU - Ward, D. R.

AU - Ward, J. J.

AU - Watkins, P. M.

AU - Watson, A. T.

AU - Watson, N. K.

AU - Weber, P.

AU - Wells, P. S.

AU - Wermes, N.

AU - Wilkens, B.

AU - Wilson, G. W.

AU - Wilson, J. A.

AU - Winterer, V. H.

AU - Wlodek, T.

AU - Wolf, G.

AU - Wotton, S.

AU - Wyatt, T. R.

AU - Yeaman, A.

AU - Yekutieli, G.

AU - Yurko, M.

AU - Zeuner, W.

AU - Zorn, G. T.

N1 - Funding Information: Sincere thanks are due to K. Hagiwara (KEK) and T. Kon (Seikei Univ.) for useful discussions. It is a pleasure to thank the SL Division for the efficient operation of the LEP accelerator, the precise information on the absolute energy, and their continuing close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Texas National Research Laboratory Commission, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Fussefeld Foundation, Israeli Ministry of Energy and Ministry of Science, Minerva Gesellschaft, Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, German Israeli Bi-national Science Foundation (GIF), Direction des Sciences de la Mati~re du Commissariat l'Energie Atomique, France, Bundesministerium ftir Forschung und Technologie, Germany, National Research Council of Canada, A.R Sloan Foundation and Junta Nacional de Investigagfio Cient\[fica e Tecnol6gica, Portugal.

PY - 1994/10/6

Y1 - 1994/10/6

N2 - A search for a supersymmetric partner of the top quark (t̃1) has been performed by the OPAL experiment in e+e- collisions at LEP. The integrated luminosity of the data sample analysed was 69.1 pb-1, which corresponds to 1.68 × 106 produced Z0 → qq̄ events. No t̃1 candidates have been found. This study excludes the existence of the t̃1 with a mass below 45.1 GeV at 95% C.L., where the mixing angle of left- and right-handed partners is smaller than 0.85 rad or greater than 1.15 rad, and the mass difference between the t̃1 and the lightest neutralino is greater than 5 GeV.

AB - A search for a supersymmetric partner of the top quark (t̃1) has been performed by the OPAL experiment in e+e- collisions at LEP. The integrated luminosity of the data sample analysed was 69.1 pb-1, which corresponds to 1.68 × 106 produced Z0 → qq̄ events. No t̃1 candidates have been found. This study excludes the existence of the t̃1 with a mass below 45.1 GeV at 95% C.L., where the mixing angle of left- and right-handed partners is smaller than 0.85 rad or greater than 1.15 rad, and the mass difference between the t̃1 and the lightest neutralino is greater than 5 GeV.

UR - http://www.scopus.com/inward/record.url?scp=0001419946&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(94)91470-2

DO - 10.1016/0370-2693(94)91470-2

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0001419946

SN - 0370-2693

VL - 337

SP - 207

EP - 218

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Search for a scalar top quark using the OPAL detector

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