Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV

K. Ackerstaff, G. Alexander, J. Allison, N. Altekamp, K. J. Anderson, S. Anderson, S. Arcelli, S. Asai, D. Axen, G. Azuelos, A. H. Ball, E. Barberio, R. J. Barlow, R. Bartoldus, J. R. Batley, S. Baumann, J. Bechtluft, C. Beeston, T. Behnke, A. N. BellK. W. Bell, G. Bella, S. Bentvelsen, S. Bethke, O. Biebel, A. Biguzzi, S. D. Bird, V. Blobel, I. J. Bloodworth, J. E. Bloomer, M. Bobinski, P. Bock, D. Bonacorsi, M. Boutemeur, B. T. Bouwens, S. Braibant, L. Brigliadori, R. M. Brown, H. J. Burckhart, C. Burgard, R. Bürgin, P. 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, S. Dado, C. Dallapiccola, G. M. Dallavalle, R. Davis, S. de Jong, L. A. del Pozo, K. Desch, B. Dienes, M. S. Dixit, E. do Couto e Silva, M. Doucet, E. Duchovni, G. Duckeck, I. P. Duerdoth, D. Eatough, J. E G Edwards, P. G. Estabrooks, H. G. Evans, M. Evans, F. Fabbri, M. Fanti, A. A. Faust, F. Fiedler, M. Fierro, H. M. Fischer, I. Fleck, R. Folman, D. G. Fong, M. Foucher, A. Fürtjes, D. I. Futyan, P. Gagnon, J. W. Gary, J. Gascon, S. M. Gascon-Shotkin, N. I. Geddes, C. Geich-Gimbel, T. Geralis, G. Giacomelli, P. Giacomelli, R. Giacomelli, V. 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, R. Hawkings, R. J. Hemingway, M. Herndon, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, S. J. Hillier, P. R. Hobson, R. J. Homer, A. K. Honma, D. Horváth, K. R. Hossain, R. Howard, P. Huntemeyer, 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, G. Jones, M. Jones, U. Jost, P. Jovanovic, T. R. Junk, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, P. I. Kayal, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, J. Kirk, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, D. S. Koetke, T. P. Kokott, M. Kolrep, S. Komamiya, T. Kress, P. Krieger, J. von Krogh, P. 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, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Ludwig, A. Macchiolo, A. Macpherson, M. Mannelli, S. Marcellini, C. Markus, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mättig, W. J. McDonald, J. McKenna, E. A. Mckigney, T. J. McMahon, R. A. McPherson, F. Meijers, S. Menke, F. S. Merritt, H. Mes, J. Meyer, A. Michelini, G. Mikenberg, D. J. Miller, A. Mincer, R. Mir, W. Mohr, A. Montanari, T. Mori, M. Morii, U. Muller, S. Mihara, K. Nagai, I. Nakamura, H. A. Neal, B. Nellen, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, A. Oh, N. J. Oldershaw, M. J. Oreglia, S. Orito, J. Pálinkás, G. Pásztor, J. R. Pater, G. N. Patrick, J. Patt, M. J. Pearce, R. Perez-Ochoa, S. Petzold, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, P. Poffenberger, B. Poli, A. Posthaus, D. L. Rees, D. Rigby, S. Robertson, S. A. Robins, N. Rodning, J. M. Roney, A. Rooke, E. Ros, A. M. Rossi, P. Routenburg, Y. Rozen, K. Runge, O. Runolfsson, U. Ruppel, D. R. Rust, R. Rylko, K. Sachs, T. Saeki, E. K G Sarkisyan, C. Sbarra, A. D. Schaile, O. Schaile, F. Scharf, P. Scharff-Hansen, P. Schenk, J. Schieck, P. Schleper, B. Schmitt, S. Schmitt, A. Schüning, M. Schroder, H. C. Schultz-Coulon, M. Schumacher, C. Schwick, W. G. Scott, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Sittler, A. Skillman, A. Skuja, A. M. Smith, G. A. Snow, R. Sobie, S. Soldner-Rembold, R. W. Springer, M. Sproston, K. Stephens, J. Steuerer, B. Stockhausen, K. Stoll, D. Strom, P. Szymanski, R. Tafirout, S. D. Talbot, S. Tanaka, P. Taras, S. Tarem, R. Teuscher, M. Thiergen, M. A. Thomson, E. von Türne, S. Towers, I. Trigger, Z. Trócsányi, E. Tsur, A. S. Turcot, M. F. Turner-Watson, P. Utzat, R. van Kooten, M. Verzocchi, P. Vikas, E. H. Vokurka, H. Voss, F. Wückerle, A. Wagner, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, N. Wermes, J. S. White, B. Wilkens, G. W. Wilson, J. A. Wilson, G. Wolf, T. R. Wyatt, S. Yamashita, G. Yekutieli, V. Zacek, D. Zer-Zion

    Research output: Contribution to journalArticle

    Abstract

    We have searched for unstable neutral and charged heavy leptons, N and L± and for excited states of neutral and charged leptons, ν*, e*, μ*, and τ*, in e+e- collisions at centre-of-mass energies of 170 and 172 GeV using the OPAL detector at LEP. No evidence for their existence was found From the analysis of charged-current decays of pair-produced unstable heavy leptons, and of charged-current and photonic decays of pair-produced excited leptons, lower limits on their masses are derived From the analysis of charged-current and photonic decays of singly-produced excited leptons, upper limits on the ratio of the coupling to the compositeness scale, f/Λ, are determined for masses up to the kinematic limit.

    Original languageEnglish (US)
    Pages (from-to)45-64
    Number of pages20
    JournalEuropean Physical Journal C
    Volume1
    Issue number1-2
    StatePublished - 1998

    Fingerprint

    Photonics
    leptons
    collisions
    Excited states
    Kinematics
    Detectors
    decay
    photonics
    center of mass
    kinematics
    detectors
    excitation
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Ackerstaff, K., Alexander, G., Allison, J., Altekamp, N., Anderson, K. J., Anderson, S., ... Zer-Zion, D. (1998). Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV. European Physical Journal C, 1(1-2), 45-64.

    Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV. / Ackerstaff, K.; Alexander, G.; Allison, J.; Altekamp, N.; Anderson, K. J.; Anderson, S.; Arcelli, S.; Asai, S.; Axen, D.; Azuelos, G.; Ball, A. H.; Barberio, E.; Barlow, R. J.; Bartoldus, R.; Batley, J. R.; Baumann, S.; Bechtluft, J.; Beeston, C.; Behnke, T.; Bell, A. N.; Bell, K. W.; Bella, G.; Bentvelsen, S.; Bethke, S.; Biebel, O.; Biguzzi, A.; Bird, S. D.; Blobel, V.; Bloodworth, I. J.; Bloomer, J. E.; Bobinski, M.; Bock, P.; Bonacorsi, D.; Boutemeur, M.; Bouwens, B. T.; Braibant, S.; Brigliadori, L.; Brown, R. M.; Burckhart, H. J.; Burgard, C.; Bürgin, R.; Capiluppi, P.; Carnegie, R. K.; Carter, A. A.; Carter, J. R.; Chang, C. Y.; Charlton, D. G.; Chrisman, D.; Clarke, P. E L; Cohen, I.; Conboy, J. E.; Cooke, O. C.; Cuffiani, M.; Dado, S.; Dallapiccola, C.; Dallavalle, G. M.; Davis, R.; de Jong, S.; del Pozo, L. A.; Desch, K.; Dienes, B.; Dixit, M. S.; do Couto e Silva, E.; Doucet, M.; Duchovni, E.; Duckeck, G.; Duerdoth, I. P.; Eatough, D.; Edwards, J. E G; Estabrooks, P. G.; Evans, H. G.; Evans, M.; Fabbri, F.; Fanti, M.; Faust, A. A.; Fiedler, F.; Fierro, M.; Fischer, H. M.; Fleck, I.; Folman, R.; Fong, D. G.; Foucher, M.; Fürtjes, A.; Futyan, D. I.; Gagnon, P.; Gary, J. W.; Gascon, J.; Gascon-Shotkin, S. M.; Geddes, N. I.; Geich-Gimbel, C.; Geralis, T.; Giacomelli, G.; Giacomelli, P.; Giacomelli, R.; Gibson, V.; Gibson, W. R.; Gingrich, D. M.; Glenzinski, D.; Goldberg, J.; Goodrick, M. J.; Gorn, W.; Grandi, C.; Gross, E.; Grunhaus, J.; Gruwe, M.; Hajdu, C.; Hanson, G. G.; Hansroul, M.; Hapke, M.; Hargrove, C. K.; Hart, P. A.; Hartmann, C.; Hauschild, M.; Hawkes, C. M.; Hawkings, R.; Hemingway, R. J.; Herndon, M.; Herten, G.; Heuer, R. D.; Hildreth, M. D.; Hill, J. C.; Hillier, S. J.; Hobson, P. R.; Homer, R. J.; Honma, A. K.; Horváth, D.; Hossain, K. R.; Howard, R.; Huntemeyer, P.; Hutchcroft, D. E.; Igo-Kemenes, P.; Imrie, D. C.; Ingram, M. R.; Ishii, K.; Jawahery, A.; Jeffreys, P. W.; Jeremie, H.; Jimack, M.; Joly, A.; Jones, C. R.; Jones, G.; Jones, M.; Jost, U.; Jovanovic, P.; Junk, T. R.; Karlen, D.; Kartvelishvili, V.; Kawagoe, K.; Kawamoto, T.; Kayal, P. I.; Keeler, R. K.; Kellogg, R. G.; Kennedy, B. W.; Kirk, J.; Klier, A.; Kluth, S.; Kobayashi, T.; Kobel, M.; Koetke, D. S.; Kokott, T. P.; Kolrep, M.; Komamiya, S.; Kress, T.; Krieger, P.; von Krogh, J.; Kyberd, P.; Lafferty, G. D.; Lahmann, R.; Lai, W. P.; Lanske, D.; Lauber, J.; Lautenschlager, S. R.; Layter, J. G.; Lazic, D.; Lee, A. M.; Lefebvre, E.; Lellouch, D.; Letts, J.; Levinson, L.; Lloyd, S. L.; Loebinger, F. K.; Long, G. D.; Losty, M. J.; Ludwig, J.; Macchiolo, A.; Macpherson, A.; Mannelli, M.; Marcellini, S.; Markus, C.; Martin, A. J.; Martin, J. P.; Martinez, G.; Mashimo, T.; Mättig, P.; McDonald, W. J.; McKenna, J.; Mckigney, E. A.; McMahon, T. J.; McPherson, R. A.; Meijers, F.; Menke, S.; Merritt, F. S.; Mes, H.; Meyer, J.; Michelini, A.; Mikenberg, G.; Miller, D. J.; Mincer, A.; Mir, R.; Mohr, W.; Montanari, A.; Mori, T.; Morii, M.; Muller, U.; Mihara, S.; Nagai, K.; Nakamura, I.; Neal, H. A.; Nellen, B.; Nisius, R.; O'Neale, S. W.; Oakham, F. G.; Odorici, F.; Ogren, H. O.; Oh, A.; Oldershaw, N. J.; Oreglia, M. J.; Orito, S.; Pálinkás, J.; Pásztor, G.; Pater, J. R.; Patrick, G. N.; Patt, J.; Pearce, M. J.; Perez-Ochoa, R.; Petzold, S.; Pfeifenschneider, P.; Pilcher, J. E.; Pinfold, J.; Plane, D. E.; Poffenberger, P.; Poli, B.; Posthaus, A.; Rees, D. L.; Rigby, D.; Robertson, S.; Robins, S. A.; Rodning, N.; Roney, J. M.; Rooke, A.; Ros, E.; Rossi, A. M.; Routenburg, P.; Rozen, Y.; Runge, K.; Runolfsson, O.; Ruppel, U.; Rust, D. R.; Rylko, R.; Sachs, K.; Saeki, T.; Sarkisyan, E. K G; Sbarra, C.; Schaile, A. D.; Schaile, O.; Scharf, F.; Scharff-Hansen, P.; Schenk, P.; Schieck, J.; Schleper, P.; Schmitt, B.; Schmitt, S.; Schüning, A.; Schroder, M.; Schultz-Coulon, H. C.; Schumacher, M.; Schwick, C.; Scott, W. G.; Shears, T. G.; Shen, B. C.; Shepherd-Themistocleous, C. H.; Sherwood, P.; Siroli, G. P.; Sittler, A.; Skillman, A.; Skuja, A.; Smith, A. M.; Snow, G. A.; Sobie, R.; Soldner-Rembold, S.; Springer, R. W.; Sproston, M.; Stephens, K.; Steuerer, J.; Stockhausen, B.; Stoll, K.; Strom, D.; Szymanski, P.; Tafirout, R.; Talbot, S. D.; Tanaka, S.; Taras, P.; Tarem, S.; Teuscher, R.; Thiergen, M.; Thomson, M. A.; von Türne, E.; Towers, S.; Trigger, I.; Trócsányi, Z.; Tsur, E.; Turcot, A. S.; Turner-Watson, M. F.; Utzat, P.; van Kooten, R.; Verzocchi, M.; Vikas, P.; Vokurka, E. H.; Voss, H.; Wückerle, F.; Wagner, A.; Ward, C. P.; Ward, D. R.; Watkins, P. M.; Watson, A. T.; Watson, N. K.; Wells, P. S.; Wermes, N.; White, J. S.; Wilkens, B.; Wilson, G. W.; Wilson, J. A.; Wolf, G.; Wyatt, T. R.; Yamashita, S.; Yekutieli, G.; Zacek, V.; Zer-Zion, D.

    In: European Physical Journal C, Vol. 1, No. 1-2, 1998, p. 45-64.

    Research output: Contribution to journalArticle

    Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, KJ, Anderson, S, Arcelli, S, Asai, S, Axen, D, Azuelos, G, Ball, AH, Barberio, E, Barlow, RJ, Bartoldus, R, Batley, JR, Baumann, S, Bechtluft, J, Beeston, C, Behnke, T, Bell, AN, Bell, KW, Bella, G, Bentvelsen, S, Bethke, S, Biebel, O, Biguzzi, A, Bird, SD, Blobel, V, Bloodworth, IJ, Bloomer, JE, Bobinski, M, Bock, P, Bonacorsi, D, Boutemeur, M, Bouwens, BT, Braibant, S, Brigliadori, L, Brown, RM, Burckhart, HJ, Burgard, C, Bürgin, R, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrisman, D, Clarke, PEL, Cohen, I, Conboy, JE, Cooke, OC, Cuffiani, M, Dado, S, Dallapiccola, C, Dallavalle, GM, Davis, R, de Jong, S, del Pozo, LA, Desch, K, Dienes, B, Dixit, MS, do Couto e Silva, E, Doucet, M, Duchovni, E, Duckeck, G, Duerdoth, IP, Eatough, D, Edwards, JEG, Estabrooks, PG, Evans, HG, Evans, M, Fabbri, F, Fanti, M, Faust, AA, Fiedler, F, Fierro, M, Fischer, HM, Fleck, I, Folman, R, Fong, DG, Foucher, M, Fürtjes, A, Futyan, DI, Gagnon, P, Gary, JW, Gascon, J, Gascon-Shotkin, SM, Geddes, NI, Geich-Gimbel, C, Geralis, T, Giacomelli, G, Giacomelli, P, Giacomelli, R, Gibson, V, Gibson, WR, Gingrich, DM, Glenzinski, D, Goldberg, J, Goodrick, MJ, Gorn, W, Grandi, C, Gross, E, Grunhaus, J, Gruwe, M, Hajdu, C, Hanson, GG, Hansroul, M, Hapke, M, Hargrove, CK, Hart, PA, Hartmann, C, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Herndon, M, Herten, G, Heuer, RD, Hildreth, MD, Hill, JC, Hillier, SJ, Hobson, PR, Homer, RJ, Honma, AK, Horváth, D, Hossain, KR, Howard, R, Huntemeyer, P, Hutchcroft, DE, Igo-Kemenes, P, Imrie, DC, Ingram, MR, Ishii, K, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Joly, A, Jones, CR, Jones, G, Jones, M, Jost, U, Jovanovic, P, Junk, TR, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Kayal, PI, Keeler, RK, Kellogg, RG, Kennedy, BW, Kirk, J, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Koetke, DS, Kokott, TP, Kolrep, M, Komamiya, S, Kress, T, Krieger, P, von Krogh, J, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Lanske, D, Lauber, J, Lautenschlager, SR, Layter, JG, Lazic, D, Lee, AM, Lefebvre, E, Lellouch, D, Letts, J, Levinson, L, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Ludwig, J, Macchiolo, A, Macpherson, A, Mannelli, M, Marcellini, S, Markus, C, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mättig, P, McDonald, WJ, McKenna, J, Mckigney, EA, McMahon, TJ, McPherson, RA, Meijers, F, Menke, S, Merritt, FS, Mes, H, Meyer, J, Michelini, A, Mikenberg, G, Miller, DJ, Mincer, A, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Muller, U, Mihara, S, Nagai, K, Nakamura, I, Neal, HA, Nellen, B, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oh, A, Oldershaw, NJ, Oreglia, MJ, Orito, S, Pálinkás, J, Pásztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Perez-Ochoa, R, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Rees, DL, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Rooke, A, Ros, E, Rossi, AM, Routenburg, P, Rozen, Y, Runge, K, Runolfsson, O, Ruppel, U, Rust, DR, Rylko, R, Sachs, K, Saeki, T, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharf, F, Scharff-Hansen, P, Schenk, P, Schieck, J, Schleper, P, Schmitt, B, Schmitt, S, Schüning, A, Schroder, M, Schultz-Coulon, HC, Schumacher, M, Schwick, C, Scott, WG, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Sittler, A, Skillman, A, Skuja, A, Smith, AM, Snow, GA, Sobie, R, Soldner-Rembold, S, Springer, RW, Sproston, M, Stephens, K, Steuerer, J, Stockhausen, B, Stoll, K, Strom, D, Szymanski, P, Tafirout, R, Talbot, SD, Tanaka, S, Taras, P, Tarem, S, Teuscher, R, Thiergen, M, Thomson, MA, von Türne, E, Towers, S, Trigger, I, Trócsányi, Z, Tsur, E, Turcot, AS, Turner-Watson, MF, Utzat, P, van Kooten, R, Verzocchi, M, Vikas, P, Vokurka, EH, Voss, H, Wückerle, F, Wagner, A, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wermes, N, White, JS, Wilkens, B, Wilson, GW, Wilson, JA, Wolf, G, Wyatt, TR, Yamashita, S, Yekutieli, G, Zacek, V & Zer-Zion, D 1998, 'Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV', European Physical Journal C, vol. 1, no. 1-2, pp. 45-64.
    Ackerstaff K, Alexander G, Allison J, Altekamp N, Anderson KJ, Anderson S et al. Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV. European Physical Journal C. 1998;1(1-2):45-64.
    Ackerstaff, K. ; Alexander, G. ; Allison, J. ; Altekamp, N. ; Anderson, K. J. ; Anderson, S. ; Arcelli, S. ; Asai, S. ; Axen, D. ; Azuelos, G. ; Ball, A. H. ; Barberio, E. ; Barlow, R. J. ; Bartoldus, R. ; Batley, J. R. ; Baumann, S. ; Bechtluft, J. ; Beeston, C. ; Behnke, T. ; Bell, A. N. ; Bell, K. W. ; Bella, G. ; Bentvelsen, S. ; Bethke, S. ; Biebel, O. ; Biguzzi, A. ; Bird, S. D. ; Blobel, V. ; Bloodworth, I. J. ; Bloomer, J. E. ; Bobinski, M. ; Bock, P. ; Bonacorsi, D. ; Boutemeur, M. ; Bouwens, B. T. ; Braibant, S. ; Brigliadori, L. ; Brown, R. M. ; Burckhart, H. J. ; Burgard, C. ; Bürgin, R. ; Capiluppi, P. ; Carnegie, R. K. ; Carter, A. A. ; Carter, J. R. ; Chang, C. Y. ; Charlton, D. G. ; Chrisman, D. ; Clarke, P. E L ; Cohen, I. ; Conboy, J. E. ; Cooke, O. C. ; Cuffiani, M. ; Dado, S. ; Dallapiccola, C. ; Dallavalle, G. M. ; Davis, R. ; de Jong, S. ; del Pozo, L. A. ; Desch, K. ; Dienes, B. ; Dixit, M. S. ; do Couto e Silva, E. ; Doucet, M. ; Duchovni, E. ; Duckeck, G. ; Duerdoth, I. P. ; Eatough, D. ; Edwards, J. E G ; Estabrooks, P. G. ; Evans, H. G. ; Evans, M. ; Fabbri, F. ; Fanti, M. ; Faust, A. A. ; Fiedler, F. ; Fierro, M. ; Fischer, H. M. ; Fleck, I. ; Folman, R. ; Fong, D. G. ; Foucher, M. ; Fürtjes, A. ; Futyan, D. I. ; Gagnon, P. ; Gary, J. W. ; Gascon, J. ; Gascon-Shotkin, S. M. ; Geddes, N. I. ; Geich-Gimbel, C. ; Geralis, T. ; Giacomelli, G. ; Giacomelli, P. ; Giacomelli, R. ; Gibson, V. ; Gibson, W. R. ; Gingrich, D. M. ; Glenzinski, D. ; Goldberg, J. ; Goodrick, M. J. ; Gorn, W. ; Grandi, C. ; Gross, E. ; Grunhaus, J. ; Gruwe, M. ; Hajdu, C. ; Hanson, G. G. ; Hansroul, M. ; Hapke, M. ; Hargrove, C. K. ; Hart, P. A. ; Hartmann, C. ; Hauschild, M. ; Hawkes, C. M. ; Hawkings, R. ; Hemingway, R. J. ; Herndon, M. ; Herten, G. ; Heuer, R. D. ; Hildreth, M. D. ; Hill, J. C. ; Hillier, S. J. ; Hobson, P. R. ; Homer, R. J. ; Honma, A. K. ; Horváth, D. ; Hossain, K. R. ; Howard, R. ; Huntemeyer, P. ; Hutchcroft, D. E. ; Igo-Kemenes, P. ; Imrie, D. C. ; Ingram, M. R. ; Ishii, K. ; Jawahery, A. ; Jeffreys, P. W. ; Jeremie, H. ; Jimack, M. ; Joly, A. ; Jones, C. R. ; Jones, G. ; Jones, M. ; Jost, U. ; Jovanovic, P. ; Junk, T. R. ; Karlen, D. ; Kartvelishvili, V. ; Kawagoe, K. ; Kawamoto, T. ; Kayal, P. I. ; Keeler, R. K. ; Kellogg, R. G. ; Kennedy, B. W. ; Kirk, J. ; Klier, A. ; Kluth, S. ; Kobayashi, T. ; Kobel, M. ; Koetke, D. S. ; Kokott, T. P. ; Kolrep, M. ; Komamiya, S. ; Kress, T. ; Krieger, P. ; von Krogh, J. ; Kyberd, P. ; Lafferty, G. D. ; Lahmann, R. ; Lai, W. P. ; Lanske, D. ; Lauber, J. ; Lautenschlager, S. R. ; Layter, J. G. ; Lazic, D. ; Lee, A. M. ; Lefebvre, E. ; Lellouch, D. ; Letts, J. ; Levinson, L. ; Lloyd, S. L. ; Loebinger, F. K. ; Long, G. D. ; Losty, M. J. ; Ludwig, J. ; Macchiolo, A. ; Macpherson, A. ; Mannelli, M. ; Marcellini, S. ; Markus, C. ; Martin, A. J. ; Martin, J. P. ; Martinez, G. ; Mashimo, T. ; Mättig, P. ; McDonald, W. J. ; McKenna, J. ; Mckigney, E. A. ; McMahon, T. J. ; McPherson, R. A. ; Meijers, F. ; Menke, S. ; Merritt, F. S. ; Mes, H. ; Meyer, J. ; Michelini, A. ; Mikenberg, G. ; Miller, D. J. ; Mincer, A. ; Mir, R. ; Mohr, W. ; Montanari, A. ; Mori, T. ; Morii, M. ; Muller, U. ; Mihara, S. ; Nagai, K. ; Nakamura, I. ; Neal, H. A. ; Nellen, B. ; Nisius, R. ; O'Neale, S. W. ; Oakham, F. G. ; Odorici, F. ; Ogren, H. O. ; Oh, A. ; Oldershaw, N. J. ; Oreglia, M. J. ; Orito, S. ; Pálinkás, J. ; Pásztor, G. ; Pater, J. R. ; Patrick, G. N. ; Patt, J. ; Pearce, M. J. ; Perez-Ochoa, R. ; Petzold, S. ; Pfeifenschneider, P. ; Pilcher, J. E. ; Pinfold, J. ; Plane, D. E. ; Poffenberger, P. ; Poli, B. ; Posthaus, A. ; Rees, D. L. ; Rigby, D. ; Robertson, S. ; Robins, S. A. ; Rodning, N. ; Roney, J. M. ; Rooke, A. ; Ros, E. ; Rossi, A. M. ; Routenburg, P. ; Rozen, Y. ; Runge, K. ; Runolfsson, O. ; Ruppel, U. ; Rust, D. R. ; Rylko, R. ; Sachs, K. ; Saeki, T. ; Sarkisyan, E. K G ; Sbarra, C. ; Schaile, A. D. ; Schaile, O. ; Scharf, F. ; Scharff-Hansen, P. ; Schenk, P. ; Schieck, J. ; Schleper, P. ; Schmitt, B. ; Schmitt, S. ; Schüning, A. ; Schroder, M. ; Schultz-Coulon, H. C. ; Schumacher, M. ; Schwick, C. ; Scott, W. G. ; Shears, T. G. ; Shen, B. C. ; Shepherd-Themistocleous, C. H. ; Sherwood, P. ; Siroli, G. P. ; Sittler, A. ; Skillman, A. ; Skuja, A. ; Smith, A. M. ; Snow, G. A. ; Sobie, R. ; Soldner-Rembold, S. ; Springer, R. W. ; Sproston, M. ; Stephens, K. ; Steuerer, J. ; Stockhausen, B. ; Stoll, K. ; Strom, D. ; Szymanski, P. ; Tafirout, R. ; Talbot, S. D. ; Tanaka, S. ; Taras, P. ; Tarem, S. ; Teuscher, R. ; Thiergen, M. ; Thomson, M. A. ; von Türne, E. ; Towers, S. ; Trigger, I. ; Trócsányi, Z. ; Tsur, E. ; Turcot, A. S. ; Turner-Watson, M. F. ; Utzat, P. ; van Kooten, R. ; Verzocchi, M. ; Vikas, P. ; Vokurka, E. H. ; Voss, H. ; Wückerle, F. ; Wagner, A. ; Ward, C. P. ; Ward, D. R. ; Watkins, P. M. ; Watson, A. T. ; Watson, N. K. ; Wells, P. S. ; Wermes, N. ; White, J. S. ; Wilkens, B. ; Wilson, G. W. ; Wilson, J. A. ; Wolf, G. ; Wyatt, T. R. ; Yamashita, S. ; Yekutieli, G. ; Zacek, V. ; Zer-Zion, D. / Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV. In: European Physical Journal C. 1998 ; Vol. 1, No. 1-2. pp. 45-64.
    @article{6530acc0791e4aa08b4a36008f802bfe,
    title = "Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV",
    abstract = "We have searched for unstable neutral and charged heavy leptons, N and L± and for excited states of neutral and charged leptons, ν*, e*, μ*, and τ*, in e+e- collisions at centre-of-mass energies of 170 and 172 GeV using the OPAL detector at LEP. No evidence for their existence was found From the analysis of charged-current decays of pair-produced unstable heavy leptons, and of charged-current and photonic decays of pair-produced excited leptons, lower limits on their masses are derived From the analysis of charged-current and photonic decays of singly-produced excited leptons, upper limits on the ratio of the coupling to the compositeness scale, f/Λ, are determined for masses up to the kinematic limit.",
    author = "K. Ackerstaff and G. Alexander and J. Allison and N. Altekamp and Anderson, {K. J.} and S. Anderson and S. Arcelli and S. Asai 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 S. Baumann and J. Bechtluft and C. Beeston and T. Behnke and Bell, {A. N.} and Bell, {K. W.} and G. Bella and S. Bentvelsen and S. Bethke and O. Biebel and A. Biguzzi and Bird, {S. D.} and V. Blobel and Bloodworth, {I. J.} and Bloomer, {J. E.} and M. Bobinski and P. Bock and D. Bonacorsi and M. Boutemeur and Bouwens, {B. T.} and S. Braibant and L. Brigliadori and Brown, {R. M.} and Burckhart, {H. J.} and C. Burgard and R. B{\"u}rgin and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and D. Chrisman and Clarke, {P. E L} and I. Cohen and Conboy, {J. E.} and Cooke, {O. C.} and M. Cuffiani and S. Dado and C. Dallapiccola and Dallavalle, {G. M.} and R. Davis and {de Jong}, S. and {del Pozo}, {L. A.} and K. Desch and B. Dienes and Dixit, {M. S.} and {do Couto e Silva}, E. and M. Doucet and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and D. Eatough and Edwards, {J. E G} and Estabrooks, {P. G.} and Evans, {H. G.} and M. Evans and F. Fabbri and M. Fanti and Faust, {A. A.} and F. Fiedler and M. Fierro and Fischer, {H. M.} and I. Fleck and R. Folman and Fong, {D. G.} and M. Foucher and A. F{\"u}rtjes and Futyan, {D. I.} and P. Gagnon and Gary, {J. W.} and J. Gascon and Gascon-Shotkin, {S. M.} and Geddes, {N. I.} and C. Geich-Gimbel and T. Geralis and G. Giacomelli and P. Giacomelli and R. Giacomelli and V. Gibson and Gibson, {W. R.} and Gingrich, {D. M.} and D. Glenzinski and J. Goldberg and Goodrick, {M. J.} and W. Gorn and C. Grandi and E. Gross and J. Grunhaus and M. Gruwe and C. Hajdu and Hanson, {G. G.} and M. Hansroul and M. Hapke and Hargrove, {C. K.} and Hart, {P. A.} and C. Hartmann and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and M. Herndon and G. Herten and Heuer, {R. D.} and Hildreth, {M. D.} and Hill, {J. C.} and Hillier, {S. J.} and Hobson, {P. R.} and Homer, {R. J.} and Honma, {A. K.} and D. Horv{\'a}th and Hossain, {K. R.} and R. Howard and P. Huntemeyer and Hutchcroft, {D. E.} and P. Igo-Kemenes and Imrie, {D. C.} and Ingram, {M. R.} and K. Ishii and A. Jawahery and Jeffreys, {P. W.} and H. Jeremie and M. Jimack and A. Joly and Jones, {C. R.} and G. Jones and M. Jones and U. Jost and P. Jovanovic and Junk, {T. R.} and D. Karlen and V. Kartvelishvili and K. Kawagoe and T. Kawamoto and Kayal, {P. I.} and Keeler, {R. K.} and Kellogg, {R. G.} and Kennedy, {B. W.} and J. Kirk and A. Klier and S. Kluth and T. Kobayashi and M. Kobel and Koetke, {D. S.} and Kokott, {T. P.} and M. Kolrep and S. Komamiya and T. Kress and P. Krieger and {von Krogh}, J. and P. Kyberd and Lafferty, {G. D.} and R. Lahmann and Lai, {W. P.} and D. Lanske and J. Lauber and Lautenschlager, {S. R.} and Layter, {J. G.} and D. Lazic and Lee, {A. M.} and E. Lefebvre and D. Lellouch and J. Letts and L. Levinson and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and Losty, {M. J.} and J. Ludwig and A. Macchiolo and A. Macpherson and M. Mannelli and S. Marcellini and C. Markus and Martin, {A. J.} and Martin, {J. P.} and G. Martinez and T. Mashimo and P. M{\"a}ttig and McDonald, {W. J.} and J. McKenna and Mckigney, {E. A.} and McMahon, {T. J.} and McPherson, {R. A.} and F. Meijers and S. Menke and Merritt, {F. S.} and H. Mes and J. Meyer and A. Michelini and G. Mikenberg and Miller, {D. J.} and A. Mincer and R. Mir and W. Mohr and A. Montanari and T. Mori and M. Morii and U. Muller and S. Mihara and K. Nagai and I. Nakamura and Neal, {H. A.} and B. Nellen and R. Nisius and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and Ogren, {H. O.} and A. Oh and Oldershaw, {N. J.} and Oreglia, {M. J.} and S. Orito and J. P{\'a}link{\'a}s and G. P{\'a}sztor and Pater, {J. R.} and Patrick, {G. N.} and J. Patt and Pearce, {M. J.} and R. Perez-Ochoa and S. Petzold and P. Pfeifenschneider and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and P. Poffenberger and B. Poli and A. Posthaus and Rees, {D. L.} and D. Rigby and S. Robertson and Robins, {S. A.} and N. Rodning and Roney, {J. M.} and A. Rooke and E. Ros and Rossi, {A. M.} and P. Routenburg and Y. Rozen and K. Runge and O. Runolfsson and U. Ruppel and Rust, {D. R.} and R. Rylko and K. Sachs and T. Saeki and Sarkisyan, {E. K G} and C. Sbarra and Schaile, {A. D.} and O. Schaile and F. Scharf and P. Scharff-Hansen and P. Schenk and J. Schieck and P. Schleper and B. Schmitt and S. Schmitt and A. Sch{\"u}ning and M. Schroder and Schultz-Coulon, {H. C.} and M. Schumacher and C. Schwick and Scott, {W. G.} and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Sittler and A. Skillman and A. Skuja and Smith, {A. M.} and Snow, {G. A.} and R. Sobie and S. Soldner-Rembold and Springer, {R. W.} and M. Sproston and K. Stephens and J. Steuerer and B. Stockhausen and K. Stoll and D. Strom and P. Szymanski and R. Tafirout and Talbot, {S. D.} and S. Tanaka and P. Taras and S. Tarem and R. Teuscher and M. Thiergen and Thomson, {M. A.} and {von T{\"u}rne}, E. and S. Towers and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and E. Tsur and Turcot, {A. S.} and Turner-Watson, {M. F.} and P. Utzat and {van Kooten}, R. and M. Verzocchi and P. Vikas and Vokurka, {E. H.} and H. Voss and F. W{\"u}ckerle and A. Wagner and Ward, {C. P.} and Ward, {D. R.} and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and Wells, {P. S.} and N. Wermes and White, {J. S.} and B. Wilkens and Wilson, {G. W.} and Wilson, {J. A.} and G. Wolf and Wyatt, {T. R.} and S. Yamashita and G. Yekutieli and V. Zacek and D. Zer-Zion",
    year = "1998",
    language = "English (US)",
    volume = "1",
    pages = "45--64",
    journal = "European Physical Journal C",
    issn = "1434-6044",
    publisher = "Springer New York",
    number = "1-2",

    }

    TY - JOUR

    T1 - Search for unstable heavy and excited leptons in e+e- collisions at √s = 170-172 GeV

    AU - Ackerstaff, K.

    AU - Alexander, G.

    AU - Allison, J.

    AU - Altekamp, N.

    AU - Anderson, K. J.

    AU - Anderson, S.

    AU - Arcelli, S.

    AU - Asai, S.

    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 - Baumann, S.

    AU - Bechtluft, J.

    AU - Beeston, C.

    AU - Behnke, T.

    AU - Bell, A. N.

    AU - Bell, K. W.

    AU - Bella, G.

    AU - Bentvelsen, S.

    AU - Bethke, S.

    AU - Biebel, O.

    AU - Biguzzi, A.

    AU - Bird, S. D.

    AU - Blobel, V.

    AU - Bloodworth, I. J.

    AU - Bloomer, J. E.

    AU - Bobinski, M.

    AU - Bock, P.

    AU - Bonacorsi, D.

    AU - Boutemeur, M.

    AU - Bouwens, B. T.

    AU - Braibant, S.

    AU - Brigliadori, L.

    AU - Brown, R. M.

    AU - Burckhart, H. J.

    AU - Burgard, C.

    AU - Bürgin, R.

    AU - Capiluppi, P.

    AU - Carnegie, R. K.

    AU - Carter, A. A.

    AU - Carter, J. R.

    AU - Chang, C. Y.

    AU - Charlton, D. G.

    AU - Chrisman, D.

    AU - Clarke, P. E L

    AU - Cohen, I.

    AU - Conboy, J. E.

    AU - Cooke, O. C.

    AU - Cuffiani, M.

    AU - Dado, S.

    AU - Dallapiccola, C.

    AU - Dallavalle, G. M.

    AU - Davis, R.

    AU - de Jong, S.

    AU - del Pozo, L. A.

    AU - Desch, K.

    AU - Dienes, B.

    AU - Dixit, M. S.

    AU - do Couto e Silva, E.

    AU - Doucet, M.

    AU - Duchovni, E.

    AU - Duckeck, G.

    AU - Duerdoth, I. P.

    AU - Eatough, D.

    AU - Edwards, J. E G

    AU - Estabrooks, P. G.

    AU - Evans, H. G.

    AU - Evans, M.

    AU - Fabbri, F.

    AU - Fanti, M.

    AU - Faust, A. A.

    AU - Fiedler, F.

    AU - Fierro, M.

    AU - Fischer, H. M.

    AU - Fleck, I.

    AU - Folman, R.

    AU - Fong, D. G.

    AU - Foucher, M.

    AU - Fürtjes, A.

    AU - Futyan, D. I.

    AU - Gagnon, P.

    AU - Gary, J. W.

    AU - Gascon, J.

    AU - Gascon-Shotkin, S. M.

    AU - Geddes, N. I.

    AU - Geich-Gimbel, C.

    AU - Geralis, T.

    AU - Giacomelli, G.

    AU - Giacomelli, P.

    AU - Giacomelli, R.

    AU - Gibson, V.

    AU - Gibson, W. R.

    AU - Gingrich, D. M.

    AU - Glenzinski, D.

    AU - Goldberg, J.

    AU - Goodrick, M. J.

    AU - Gorn, W.

    AU - Grandi, C.

    AU - Gross, E.

    AU - Grunhaus, J.

    AU - Gruwe, M.

    AU - Hajdu, C.

    AU - Hanson, G. G.

    AU - Hansroul, M.

    AU - Hapke, M.

    AU - Hargrove, C. K.

    AU - Hart, P. A.

    AU - Hartmann, C.

    AU - Hauschild, M.

    AU - Hawkes, C. M.

    AU - Hawkings, R.

    AU - Hemingway, R. J.

    AU - Herndon, M.

    AU - Herten, G.

    AU - Heuer, R. D.

    AU - Hildreth, M. D.

    AU - Hill, J. C.

    AU - Hillier, S. J.

    AU - Hobson, P. R.

    AU - Homer, R. J.

    AU - Honma, A. K.

    AU - Horváth, D.

    AU - Hossain, K. R.

    AU - Howard, R.

    AU - Huntemeyer, P.

    AU - Hutchcroft, D. E.

    AU - Igo-Kemenes, P.

    AU - Imrie, D. C.

    AU - Ingram, M. R.

    AU - Ishii, K.

    AU - Jawahery, A.

    AU - Jeffreys, P. W.

    AU - Jeremie, H.

    AU - Jimack, M.

    AU - Joly, A.

    AU - Jones, C. R.

    AU - Jones, G.

    AU - Jones, M.

    AU - Jost, U.

    AU - Jovanovic, P.

    AU - Junk, T. R.

    AU - Karlen, D.

    AU - Kartvelishvili, V.

    AU - Kawagoe, K.

    AU - Kawamoto, T.

    AU - Kayal, P. I.

    AU - Keeler, R. K.

    AU - Kellogg, R. G.

    AU - Kennedy, B. W.

    AU - Kirk, J.

    AU - Klier, A.

    AU - Kluth, S.

    AU - Kobayashi, T.

    AU - Kobel, M.

    AU - Koetke, D. S.

    AU - Kokott, T. P.

    AU - Kolrep, M.

    AU - Komamiya, S.

    AU - Kress, T.

    AU - Krieger, P.

    AU - von Krogh, J.

    AU - Kyberd, P.

    AU - Lafferty, G. D.

    AU - Lahmann, R.

    AU - Lai, W. P.

    AU - Lanske, D.

    AU - Lauber, J.

    AU - Lautenschlager, S. R.

    AU - Layter, J. G.

    AU - Lazic, D.

    AU - Lee, A. M.

    AU - Lefebvre, E.

    AU - Lellouch, D.

    AU - Letts, J.

    AU - Levinson, L.

    AU - Lloyd, S. L.

    AU - Loebinger, F. K.

    AU - Long, G. D.

    AU - Losty, M. J.

    AU - Ludwig, J.

    AU - Macchiolo, A.

    AU - Macpherson, A.

    AU - Mannelli, M.

    AU - Marcellini, S.

    AU - Markus, C.

    AU - Martin, A. J.

    AU - Martin, J. P.

    AU - Martinez, G.

    AU - Mashimo, T.

    AU - Mättig, P.

    AU - McDonald, W. J.

    AU - McKenna, J.

    AU - Mckigney, E. A.

    AU - McMahon, T. J.

    AU - McPherson, R. A.

    AU - Meijers, F.

    AU - Menke, S.

    AU - Merritt, F. S.

    AU - Mes, H.

    AU - Meyer, J.

    AU - Michelini, A.

    AU - Mikenberg, G.

    AU - Miller, D. J.

    AU - Mincer, A.

    AU - Mir, R.

    AU - Mohr, W.

    AU - Montanari, A.

    AU - Mori, T.

    AU - Morii, M.

    AU - Muller, U.

    AU - Mihara, S.

    AU - Nagai, K.

    AU - Nakamura, I.

    AU - Neal, H. A.

    AU - Nellen, B.

    AU - Nisius, R.

    AU - O'Neale, S. W.

    AU - Oakham, F. G.

    AU - Odorici, F.

    AU - Ogren, H. O.

    AU - Oh, A.

    AU - Oldershaw, N. J.

    AU - Oreglia, M. J.

    AU - Orito, S.

    AU - Pálinkás, J.

    AU - Pásztor, G.

    AU - Pater, J. R.

    AU - Patrick, G. N.

    AU - Patt, J.

    AU - Pearce, M. J.

    AU - Perez-Ochoa, R.

    AU - Petzold, S.

    AU - Pfeifenschneider, P.

    AU - Pilcher, J. E.

    AU - Pinfold, J.

    AU - Plane, D. E.

    AU - Poffenberger, P.

    AU - Poli, B.

    AU - Posthaus, A.

    AU - Rees, D. L.

    AU - Rigby, D.

    AU - Robertson, S.

    AU - Robins, S. A.

    AU - Rodning, N.

    AU - Roney, J. M.

    AU - Rooke, A.

    AU - Ros, E.

    AU - Rossi, A. M.

    AU - Routenburg, P.

    AU - Rozen, Y.

    AU - Runge, K.

    AU - Runolfsson, O.

    AU - Ruppel, U.

    AU - Rust, D. R.

    AU - Rylko, R.

    AU - Sachs, K.

    AU - Saeki, T.

    AU - Sarkisyan, E. K G

    AU - Sbarra, C.

    AU - Schaile, A. D.

    AU - Schaile, O.

    AU - Scharf, F.

    AU - Scharff-Hansen, P.

    AU - Schenk, P.

    AU - Schieck, J.

    AU - Schleper, P.

    AU - Schmitt, B.

    AU - Schmitt, S.

    AU - Schüning, A.

    AU - Schroder, M.

    AU - Schultz-Coulon, H. C.

    AU - Schumacher, M.

    AU - Schwick, C.

    AU - Scott, W. G.

    AU - Shears, T. G.

    AU - Shen, B. C.

    AU - Shepherd-Themistocleous, C. H.

    AU - Sherwood, P.

    AU - Siroli, G. P.

    AU - Sittler, A.

    AU - Skillman, A.

    AU - Skuja, A.

    AU - Smith, A. M.

    AU - Snow, G. A.

    AU - Sobie, R.

    AU - Soldner-Rembold, S.

    AU - Springer, R. W.

    AU - Sproston, M.

    AU - Stephens, K.

    AU - Steuerer, J.

    AU - Stockhausen, B.

    AU - Stoll, K.

    AU - Strom, D.

    AU - Szymanski, P.

    AU - Tafirout, R.

    AU - Talbot, S. D.

    AU - Tanaka, S.

    AU - Taras, P.

    AU - Tarem, S.

    AU - Teuscher, R.

    AU - Thiergen, M.

    AU - Thomson, M. A.

    AU - von Türne, E.

    AU - Towers, S.

    AU - Trigger, I.

    AU - Trócsányi, Z.

    AU - Tsur, E.

    AU - Turcot, A. S.

    AU - Turner-Watson, M. F.

    AU - Utzat, P.

    AU - van Kooten, R.

    AU - Verzocchi, M.

    AU - Vikas, P.

    AU - Vokurka, E. H.

    AU - Voss, H.

    AU - Wückerle, F.

    AU - Wagner, A.

    AU - Ward, C. P.

    AU - Ward, D. R.

    AU - Watkins, P. M.

    AU - Watson, A. T.

    AU - Watson, N. K.

    AU - Wells, P. S.

    AU - Wermes, N.

    AU - White, J. S.

    AU - Wilkens, B.

    AU - Wilson, G. W.

    AU - Wilson, J. A.

    AU - Wolf, G.

    AU - Wyatt, T. R.

    AU - Yamashita, S.

    AU - Yekutieli, G.

    AU - Zacek, V.

    AU - Zer-Zion, D.

    PY - 1998

    Y1 - 1998

    N2 - We have searched for unstable neutral and charged heavy leptons, N and L± and for excited states of neutral and charged leptons, ν*, e*, μ*, and τ*, in e+e- collisions at centre-of-mass energies of 170 and 172 GeV using the OPAL detector at LEP. No evidence for their existence was found From the analysis of charged-current decays of pair-produced unstable heavy leptons, and of charged-current and photonic decays of pair-produced excited leptons, lower limits on their masses are derived From the analysis of charged-current and photonic decays of singly-produced excited leptons, upper limits on the ratio of the coupling to the compositeness scale, f/Λ, are determined for masses up to the kinematic limit.

    AB - We have searched for unstable neutral and charged heavy leptons, N and L± and for excited states of neutral and charged leptons, ν*, e*, μ*, and τ*, in e+e- collisions at centre-of-mass energies of 170 and 172 GeV using the OPAL detector at LEP. No evidence for their existence was found From the analysis of charged-current decays of pair-produced unstable heavy leptons, and of charged-current and photonic decays of pair-produced excited leptons, lower limits on their masses are derived From the analysis of charged-current and photonic decays of singly-produced excited leptons, upper limits on the ratio of the coupling to the compositeness scale, f/Λ, are determined for masses up to the kinematic limit.

    UR - http://www.scopus.com/inward/record.url?scp=0041939627&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=0041939627&partnerID=8YFLogxK

    M3 - Article

    AN - SCOPUS:0041939627

    VL - 1

    SP - 45

    EP - 64

    JO - European Physical Journal C

    JF - European Physical Journal C

    SN - 1434-6044

    IS - 1-2

    ER -