An upper limit on the branching ratio for τ decays into seven charged particles

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. Bell; K. W. Bell; G. Bella; S. Bentvelsen; P. Berlich; 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; S. de Jong; L. A. del Pozo; K. Desch; 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. Gruwé; 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; T. Hilse; P. R. Hobson; R. J. Homer; A. K. Honma; D. Horváth; R. Howard; 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; 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; ES 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. Müller; K. Nagai; I. Nakamura; H. A. Neal; B. Nellen; R. Nisius; S. W. O'Neale; F. G. Oakham; F. Odorici; H. O. Ogren; N. J. Oldershaw; M. J. Oreglia; S. Orito; J. Pálinkás; G. Pásztor; J. R. 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; 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. Schöning; M. Schröder; H. C. Schultz-Coulon; M. Schulz; 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. Söldner-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 Törne; S. Towers; I. Trigger; E. Tsur; A. S. Turcot; M. F. Turner-Watson; P. Utzat; R. van Kooten; M. Verzocchi; P. Vikas; E. H. Vokurka; H. Voss; F. Wäckerle; 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

doi:10.1016/S0370-2693(97)00648-5

An upper limit on the branching ratio for τ decays into seven charged particles

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, P. Berlich, 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, S. de Jong, L. A. del Pozo, K. Desch, 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. Gruwé, 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, T. Hilse, P. R. Hobson, R. J. Homer, A. K. Honma, D. Horváth, R. Howard, 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, 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, ES 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. Müller, K. Nagai, I. Nakamura, H. A. Neal, B. Nellen, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, H. O. Ogren, N. J. Oldershaw, M. J. Oreglia, S. Orito, J. Pálinkás, G. Pásztor, J. R. 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, 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. Schöning, M. Schröder, H. C. Schultz-Coulon, M. Schulz, 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. Söldner-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 Törne, S. Towers, I. Trigger, E. Tsur, A. S. Turcot, M. F. Turner-Watson, P. Utzat, R. van Kooten, M. Verzocchi, P. Vikas, E. H. Vokurka, H. Voss, F. Wäckerle, 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

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

We have searched for decays of the τ lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e⁺e^- collisions at √s ≈ M_z. No candidate events were found and an upper limit on the branching ratio for T decays into seven charged particles of 1.8 × 10^-5 at the 95% confidence level was determined.

Original language	English
Pages (from-to)	213-222
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	404
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(97)00648-5
State	Published - 3 Jul 1997

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10.1016/S0370-2693(97)00648-5

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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., ... Zer-Zion, D. (1997). An upper limit on the branching ratio for τ decays into seven charged particles. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 404(1-2), 213-222. https://doi.org/10.1016/S0370-2693(97)00648-5

@article{993ab295c0254fc7bc0d3674475fe18c,

title = "An upper limit on the branching ratio for τ decays into seven charged particles",

abstract = "We have searched for decays of the τ lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e+e- collisions at √s ≈ Mz. No candidate events were found and an upper limit on the branching ratio for T decays into seven charged particles of 1.8 × 10-5 at the 95% confidence level was determined.",

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 P. Berlich 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 {de Jong}, S. and {del Pozo}, {L. A.} and K. Desch 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. Gruw{\'e} 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 T. Hilse and Hobson, {P. R.} and Homer, {R. J.} and Honma, {A. K.} and D. Horv{\'a}th and R. Howard 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 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 ES Merritt 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. M{\"u}ller 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 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 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 H. Przysiezniak 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 M. Rosvick 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{\"o}ning and M. Schr{\"o}der and Schultz-Coulon, {H. C.} and M. Schulz 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. S{\"o}ldner-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{\"o}rne}, E. and S. Towers and I. Trigger 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{\"a}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",

note = "Funding Information: (GIF), Direction des Sciences de la Mati~re du Commissariat l'Energie Atomique, France, Bundesministerium fiir Bildung, Wissenschaft, Forschung und Technologie, Germany, National Research Council of Canada, Hungarian Foundation for Scientific Research, OTKA T-016660, T023793 and OTKA F-023259. Funding Information: We particularly wish to thank the SL Division for the efficient operation of the LEP accelerator and for their continuing close cooperation with our experimental group. We thank our colleagues from CEA, DAPNIA/SPP, CE-Saclay for their efforts over the years on the time-of-flight and trigger systems which we continue to use. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Israel Science Foundation, administered by the Israel Academy of Science and Humanities, Minerva Gesellschaft, Benoziyo Center for High Energy Physics, 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",

year = "1997",

month = jul,

day = "3",

doi = "10.1016/S0370-2693(97)00648-5",

language = "אנגלית",

volume = "404",

pages = "213--222",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "1-2",

}

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, Berlich, P, 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, de Jong, S, del Pozo, LA, Desch, K, 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, Gruwé, 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, Hilse, T, Hobson, PR, Homer, RJ, Honma, AK, Horváth, D, Howard, R, 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, 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, ES, Mes, H, Meyer, J, Michelini, A, Mikenberg, G, Miller, DJ, Mincer, A, Mir, R, Mohr, W, Montanari, A, Mori, T, Morii, M, Müller, U, Nagai, K, Nakamura, I, Neal, HA, Nellen, B, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Ogren, HO, Oldershaw, NJ, Oreglia, MJ, Orito, S, Pálinkás, J, Pásztor, G, Pater, JR, Patrick, GN, Patt, J, Pearce, MJ, Petzold, S, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poffenberger, P, Poli, B, Posthaus, A, Przysiezniak, H, Rees, DL, Rigby, D, Robertson, S, Robins, SA, Rodning, N, Roney, JM, Rooke, A, Ros, E, Rossi, AM, Rosvick, M, 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, Schöning, A, Schröder, M, Schultz-Coulon, HC, Schulz, M, 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, Söldner-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 Törne, E, Towers, S, Trigger, I, Tsur, E, Turcot, AS, Turner-Watson, MF, Utzat, P, van Kooten, R, Verzocchi, M, Vikas, P, Vokurka, EH, Voss, H, Wäckerle, 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 1997, 'An upper limit on the branching ratio for τ decays into seven charged particles', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 404, no. 1-2, pp. 213-222. https://doi.org/10.1016/S0370-2693(97)00648-5

TY - JOUR

T1 - An upper limit on the branching ratio for τ decays into seven charged particles

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 - Berlich, P.

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 - de Jong, S.

AU - del Pozo, L. A.

AU - Desch, K.

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 - Gruwé, 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 - Hilse, T.

AU - Hobson, P. R.

AU - Homer, R. J.

AU - Honma, A. K.

AU - Horváth, D.

AU - Howard, R.

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 - 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, ES

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 - Müller, U.

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 - 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 - 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 - Przysiezniak, H.

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 - Rosvick, 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 - Schöning, A.

AU - Schröder, M.

AU - Schultz-Coulon, H. C.

AU - Schulz, M.

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 - Söldner-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 Törne, E.

AU - Towers, S.

AU - Trigger, I.

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 - Wäckerle, 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.

N1 - Funding Information: (GIF), Direction des Sciences de la Mati~re du Commissariat l'Energie Atomique, France, Bundesministerium fiir Bildung, Wissenschaft, Forschung und Technologie, Germany, National Research Council of Canada, Hungarian Foundation for Scientific Research, OTKA T-016660, T023793 and OTKA F-023259. Funding Information: We particularly wish to thank the SL Division for the efficient operation of the LEP accelerator and for their continuing close cooperation with our experimental group. We thank our colleagues from CEA, DAPNIA/SPP, CE-Saclay for their efforts over the years on the time-of-flight and trigger systems which we continue to use. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Israel Science Foundation, administered by the Israel Academy of Science and Humanities, Minerva Gesellschaft, Benoziyo Center for High Energy Physics, 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

PY - 1997/7/3

Y1 - 1997/7/3

N2 - We have searched for decays of the τ lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e+e- collisions at √s ≈ Mz. No candidate events were found and an upper limit on the branching ratio for T decays into seven charged particles of 1.8 × 10-5 at the 95% confidence level was determined.

AB - We have searched for decays of the τ lepton into seven or more charged particles, using data collected with the OPAL detector from 1990 to 1995 in e+e- collisions at √s ≈ Mz. No candidate events were found and an upper limit on the branching ratio for T decays into seven charged particles of 1.8 × 10-5 at the 95% confidence level was determined.

UR - http://www.scopus.com/inward/record.url?scp=0041158887&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(97)00648-5

DO - 10.1016/S0370-2693(97)00648-5

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

AN - SCOPUS:0041158887

SN - 0370-2693

VL - 404

SP - 213

EP - 222

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 -

An upper limit on the branching ratio for τ decays into seven charged particles

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