Searches for new quarks and leptons produced in Z-boson decay

G. S. Abrams, C. E. Adolphsen, D. Averill, J. Ballam, B. C. Barish, T. Barklow, B. A. Barnett, J. Bartelt, S. Bethke, D. Blockus, G. Bonvicini, A. Boyarski, B. Brabson, A. Breakstone, F. Bulos, P. R. Burchat, D. L. Burke, R. J. Cence, J. Chapman, M. Chmeissani & 108 others D. Cords, D. P. Coupal, P. Dauncey, H. C. Destaebler, D. E. Dorfan, J. M. Dorfan, D. C. Drewer, R. Elia, G. J. Feldman, D. Fernandes, R. C. Field, W. T. Ford, C. Fordham, R. Frey, D. Fujino, K. K. Gan, E. Gero, G. Gidal, T. Glanzman, G. Goldhaber, J. J. Gomez Cadenas, G. Gratta, G. Grindhammer, P. Grosse-Wiesmann, G. Hanson, R. Harr, B. Harral, F. A. Harris, C. M. Hawkes, K. Hayes, C. Hearty, C. A. Heusch, M. D. Hildreth, T. Himel, D. A. Hinshaw, S. J. Hong, D. Hutchinson, J. Hylen, W. R. Innes, R. G. Jacobsen, J. A. Jaros, C. K. Jung, J. A. Kadyk, J. Kent, M. King, S. R. Klein, D. S. Koetke, Sachio Komamiya, W. Koska, L. A. Kowalski, W. Kozanecki, J. F. Kral, M. Kuhlen, L. Labarga, A. J. Lankford, R. R. Larsen, F. Le Diberder, M. E. Levi, A. M. Litke, X. C. Lou, V. L̈th, J. A. McKenna, J. A.J. Matthews, T. Mattison, B. D. Milliken, K. C. Moffeit, C. T. Munger, W. N. Murray, J. Nash, H. Ogren, K. F. Oshaughnessy, S. I. Parker, C. Peck, M. L. Perl, F. Perrier, M. Petradza, R. Pitthan, F. C. Porter, P. Rankin, K. Riles, F. R. Rouse, D. R. Rust, H. F.W. Sadrozinski, M. W. Schaad, B. A. Schumm, A. Seiden, J. G. Smith, A. Snyder, E. Soderstrom, D. P. Stoker, R. Stroynowski, M. Swartz, R. Thun, G. H. Trilling, R. Van Kooten, P. Voruganti, S. R. Wagner, S. Watson, P. Weber, A. Weigend, A. J. Weinstein, A. J. Weir, E. Wicklund, M. Woods, D. Y. Wu, M. Yurko, C. Zaccardelli, C. Von Zanthier

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We have searched for events with new-particle topologies in 390 hadronic Z decays with the Mark II detector at the SLAC Linear Collider. We place 95%-confidence-level lower limits of 40.7 GeV/c2 for the top-quark mass, 42.0 GeV/c2 for the mass of a fourth-generation charge -(1/3 quark, and 41.3 GeV/c2 for the mass of an unstable Dirac neutral lepton.

Original languageEnglish
Pages (from-to)2447-2451
Number of pages5
JournalPhysical Review Letters
Volume63
Issue number22
DOIs
Publication statusPublished - 1989 Jan 1
Externally publishedYes

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leptons
bosons
quarks
decay
confidence
topology
detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Abrams, G. S., Adolphsen, C. E., Averill, D., Ballam, J., Barish, B. C., Barklow, T., ... Von Zanthier, C. (1989). Searches for new quarks and leptons produced in Z-boson decay. Physical Review Letters, 63(22), 2447-2451. https://doi.org/10.1103/PhysRevLett.63.2447

Searches for new quarks and leptons produced in Z-boson decay. / Abrams, G. S.; Adolphsen, C. E.; Averill, D.; Ballam, J.; Barish, B. C.; Barklow, T.; Barnett, B. A.; Bartelt, J.; Bethke, S.; Blockus, D.; Bonvicini, G.; Boyarski, A.; Brabson, B.; Breakstone, A.; Bulos, F.; Burchat, P. R.; Burke, D. L.; Cence, R. J.; Chapman, J.; Chmeissani, M.; Cords, D.; Coupal, D. P.; Dauncey, P.; Destaebler, H. C.; Dorfan, D. E.; Dorfan, J. M.; Drewer, D. C.; Elia, R.; Feldman, G. J.; Fernandes, D.; Field, R. C.; Ford, W. T.; Fordham, C.; Frey, R.; Fujino, D.; Gan, K. K.; Gero, E.; Gidal, G.; Glanzman, T.; Goldhaber, G.; Gomez Cadenas, J. J.; Gratta, G.; Grindhammer, G.; Grosse-Wiesmann, P.; Hanson, G.; Harr, R.; Harral, B.; Harris, F. A.; Hawkes, C. M.; Hayes, K.; Hearty, C.; Heusch, C. A.; Hildreth, M. D.; Himel, T.; Hinshaw, D. A.; Hong, S. J.; Hutchinson, D.; Hylen, J.; Innes, W. R.; Jacobsen, R. G.; Jaros, J. A.; Jung, C. K.; Kadyk, J. A.; Kent, J.; King, M.; Klein, S. R.; Koetke, D. S.; Komamiya, Sachio; Koska, W.; Kowalski, L. A.; Kozanecki, W.; Kral, J. F.; Kuhlen, M.; Labarga, L.; Lankford, A. J.; Larsen, R. R.; Le Diberder, F.; Levi, M. E.; Litke, A. M.; Lou, X. C.; L̈th, V.; McKenna, J. A.; Matthews, J. A.J.; Mattison, T.; Milliken, B. D.; Moffeit, K. C.; Munger, C. T.; Murray, W. N.; Nash, J.; Ogren, H.; Oshaughnessy, K. F.; Parker, S. I.; Peck, C.; Perl, M. L.; Perrier, F.; Petradza, M.; Pitthan, R.; Porter, F. C.; Rankin, P.; Riles, K.; Rouse, F. R.; Rust, D. R.; Sadrozinski, H. F.W.; Schaad, M. W.; Schumm, B. A.; Seiden, A.; Smith, J. G.; Snyder, A.; Soderstrom, E.; Stoker, D. P.; Stroynowski, R.; Swartz, M.; Thun, R.; Trilling, G. H.; Van Kooten, R.; Voruganti, P.; Wagner, S. R.; Watson, S.; Weber, P.; Weigend, A.; Weinstein, A. J.; Weir, A. J.; Wicklund, E.; Woods, M.; Wu, D. Y.; Yurko, M.; Zaccardelli, C.; Von Zanthier, C.

In: Physical Review Letters, Vol. 63, No. 22, 01.01.1989, p. 2447-2451.

Research output: Contribution to journalArticle

Abrams, GS, Adolphsen, CE, Averill, D, Ballam, J, Barish, BC, Barklow, T, Barnett, BA, Bartelt, J, Bethke, S, Blockus, D, Bonvicini, G, Boyarski, A, Brabson, B, Breakstone, A, Bulos, F, Burchat, PR, Burke, DL, Cence, RJ, Chapman, J, Chmeissani, M, Cords, D, Coupal, DP, Dauncey, P, Destaebler, HC, Dorfan, DE, Dorfan, JM, Drewer, DC, Elia, R, Feldman, GJ, Fernandes, D, Field, RC, Ford, WT, Fordham, C, Frey, R, Fujino, D, Gan, KK, Gero, E, Gidal, G, Glanzman, T, Goldhaber, G, Gomez Cadenas, JJ, Gratta, G, Grindhammer, G, Grosse-Wiesmann, P, Hanson, G, Harr, R, Harral, B, Harris, FA, Hawkes, CM, Hayes, K, Hearty, C, Heusch, CA, Hildreth, MD, Himel, T, Hinshaw, DA, Hong, SJ, Hutchinson, D, Hylen, J, Innes, WR, Jacobsen, RG, Jaros, JA, Jung, CK, Kadyk, JA, Kent, J, King, M, Klein, SR, Koetke, DS, Komamiya, S, Koska, W, Kowalski, LA, Kozanecki, W, Kral, JF, Kuhlen, M, Labarga, L, Lankford, AJ, Larsen, RR, Le Diberder, F, Levi, ME, Litke, AM, Lou, XC, L̈th, V, McKenna, JA, Matthews, JAJ, Mattison, T, Milliken, BD, Moffeit, KC, Munger, CT, Murray, WN, Nash, J, Ogren, H, Oshaughnessy, KF, Parker, SI, Peck, C, Perl, ML, Perrier, F, Petradza, M, Pitthan, R, Porter, FC, Rankin, P, Riles, K, Rouse, FR, Rust, DR, Sadrozinski, HFW, Schaad, MW, Schumm, BA, Seiden, A, Smith, JG, Snyder, A, Soderstrom, E, Stoker, DP, Stroynowski, R, Swartz, M, Thun, R, Trilling, GH, Van Kooten, R, Voruganti, P, Wagner, SR, Watson, S, Weber, P, Weigend, A, Weinstein, AJ, Weir, AJ, Wicklund, E, Woods, M, Wu, DY, Yurko, M, Zaccardelli, C & Von Zanthier, C 1989, 'Searches for new quarks and leptons produced in Z-boson decay', Physical Review Letters, vol. 63, no. 22, pp. 2447-2451. https://doi.org/10.1103/PhysRevLett.63.2447
Abrams GS, Adolphsen CE, Averill D, Ballam J, Barish BC, Barklow T et al. Searches for new quarks and leptons produced in Z-boson decay. Physical Review Letters. 1989 Jan 1;63(22):2447-2451. https://doi.org/10.1103/PhysRevLett.63.2447
Abrams, G. S. ; Adolphsen, C. E. ; Averill, D. ; Ballam, J. ; Barish, B. C. ; Barklow, T. ; Barnett, B. A. ; Bartelt, J. ; Bethke, S. ; Blockus, D. ; Bonvicini, G. ; Boyarski, A. ; Brabson, B. ; Breakstone, A. ; Bulos, F. ; Burchat, P. R. ; Burke, D. L. ; Cence, R. J. ; Chapman, J. ; Chmeissani, M. ; Cords, D. ; Coupal, D. P. ; Dauncey, P. ; Destaebler, H. C. ; Dorfan, D. E. ; Dorfan, J. M. ; Drewer, D. C. ; Elia, R. ; Feldman, G. J. ; Fernandes, D. ; Field, R. C. ; Ford, W. T. ; Fordham, C. ; Frey, R. ; Fujino, D. ; Gan, K. K. ; Gero, E. ; Gidal, G. ; Glanzman, T. ; Goldhaber, G. ; Gomez Cadenas, J. J. ; Gratta, G. ; Grindhammer, G. ; Grosse-Wiesmann, P. ; Hanson, G. ; Harr, R. ; Harral, B. ; Harris, F. A. ; Hawkes, C. M. ; Hayes, K. ; Hearty, C. ; Heusch, C. A. ; Hildreth, M. D. ; Himel, T. ; Hinshaw, D. A. ; Hong, S. J. ; Hutchinson, D. ; Hylen, J. ; Innes, W. R. ; Jacobsen, R. G. ; Jaros, J. A. ; Jung, C. K. ; Kadyk, J. A. ; Kent, J. ; King, M. ; Klein, S. R. ; Koetke, D. S. ; Komamiya, Sachio ; Koska, W. ; Kowalski, L. A. ; Kozanecki, W. ; Kral, J. F. ; Kuhlen, M. ; Labarga, L. ; Lankford, A. J. ; Larsen, R. R. ; Le Diberder, F. ; Levi, M. E. ; Litke, A. M. ; Lou, X. C. ; L̈th, V. ; McKenna, J. A. ; Matthews, J. A.J. ; Mattison, T. ; Milliken, B. D. ; Moffeit, K. C. ; Munger, C. T. ; Murray, W. N. ; Nash, J. ; Ogren, H. ; Oshaughnessy, K. F. ; Parker, S. I. ; Peck, C. ; Perl, M. L. ; Perrier, F. ; Petradza, M. ; Pitthan, R. ; Porter, F. C. ; Rankin, P. ; Riles, K. ; Rouse, F. R. ; Rust, D. R. ; Sadrozinski, H. F.W. ; Schaad, M. W. ; Schumm, B. A. ; Seiden, A. ; Smith, J. G. ; Snyder, A. ; Soderstrom, E. ; Stoker, D. P. ; Stroynowski, R. ; Swartz, M. ; Thun, R. ; Trilling, G. H. ; Van Kooten, R. ; Voruganti, P. ; Wagner, S. R. ; Watson, S. ; Weber, P. ; Weigend, A. ; Weinstein, A. J. ; Weir, A. J. ; Wicklund, E. ; Woods, M. ; Wu, D. Y. ; Yurko, M. ; Zaccardelli, C. ; Von Zanthier, C. / Searches for new quarks and leptons produced in Z-boson decay. In: Physical Review Letters. 1989 ; Vol. 63, No. 22. pp. 2447-2451.
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abstract = "We have searched for events with new-particle topologies in 390 hadronic Z decays with the Mark II detector at the SLAC Linear Collider. We place 95{\%}-confidence-level lower limits of 40.7 GeV/c2 for the top-quark mass, 42.0 GeV/c2 for the mass of a fourth-generation charge -(1/3 quark, and 41.3 GeV/c2 for the mass of an unstable Dirac neutral lepton.",
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T1 - Searches for new quarks and leptons produced in Z-boson decay

AU - Abrams, G. S.

AU - Adolphsen, C. E.

AU - Averill, D.

AU - Ballam, J.

AU - Barish, B. C.

AU - Barklow, T.

AU - Barnett, B. A.

AU - Bartelt, J.

AU - Bethke, S.

AU - Blockus, D.

AU - Bonvicini, G.

AU - Boyarski, A.

AU - Brabson, B.

AU - Breakstone, A.

AU - Bulos, F.

AU - Burchat, P. R.

AU - Burke, D. L.

AU - Cence, R. J.

AU - Chapman, J.

AU - Chmeissani, M.

AU - Cords, D.

AU - Coupal, D. P.

AU - Dauncey, P.

AU - Destaebler, H. C.

AU - Dorfan, D. E.

AU - Dorfan, J. M.

AU - Drewer, D. C.

AU - Elia, R.

AU - Feldman, G. J.

AU - Fernandes, D.

AU - Field, R. C.

AU - Ford, W. T.

AU - Fordham, C.

AU - Frey, R.

AU - Fujino, D.

AU - Gan, K. K.

AU - Gero, E.

AU - Gidal, G.

AU - Glanzman, T.

AU - Goldhaber, G.

AU - Gomez Cadenas, J. J.

AU - Gratta, G.

AU - Grindhammer, G.

AU - Grosse-Wiesmann, P.

AU - Hanson, G.

AU - Harr, R.

AU - Harral, B.

AU - Harris, F. A.

AU - Hawkes, C. M.

AU - Hayes, K.

AU - Hearty, C.

AU - Heusch, C. A.

AU - Hildreth, M. D.

AU - Himel, T.

AU - Hinshaw, D. A.

AU - Hong, S. J.

AU - Hutchinson, D.

AU - Hylen, J.

AU - Innes, W. R.

AU - Jacobsen, R. G.

AU - Jaros, J. A.

AU - Jung, C. K.

AU - Kadyk, J. A.

AU - Kent, J.

AU - King, M.

AU - Klein, S. R.

AU - Koetke, D. S.

AU - Komamiya, Sachio

AU - Koska, W.

AU - Kowalski, L. A.

AU - Kozanecki, W.

AU - Kral, J. F.

AU - Kuhlen, M.

AU - Labarga, L.

AU - Lankford, A. J.

AU - Larsen, R. R.

AU - Le Diberder, F.

AU - Levi, M. E.

AU - Litke, A. M.

AU - Lou, X. C.

AU - L̈th, V.

AU - McKenna, J. A.

AU - Matthews, J. A.J.

AU - Mattison, T.

AU - Milliken, B. D.

AU - Moffeit, K. C.

AU - Munger, C. T.

AU - Murray, W. N.

AU - Nash, J.

AU - Ogren, H.

AU - Oshaughnessy, K. F.

AU - Parker, S. I.

AU - Peck, C.

AU - Perl, M. L.

AU - Perrier, F.

AU - Petradza, M.

AU - Pitthan, R.

AU - Porter, F. C.

AU - Rankin, P.

AU - Riles, K.

AU - Rouse, F. R.

AU - Rust, D. R.

AU - Sadrozinski, H. F.W.

AU - Schaad, M. W.

AU - Schumm, B. A.

AU - Seiden, A.

AU - Smith, J. G.

AU - Snyder, A.

AU - Soderstrom, E.

AU - Stoker, D. P.

AU - Stroynowski, R.

AU - Swartz, M.

AU - Thun, R.

AU - Trilling, G. H.

AU - Van Kooten, R.

AU - Voruganti, P.

AU - Wagner, S. R.

AU - Watson, S.

AU - Weber, P.

AU - Weigend, A.

AU - Weinstein, A. J.

AU - Weir, A. J.

AU - Wicklund, E.

AU - Woods, M.

AU - Wu, D. Y.

AU - Yurko, M.

AU - Zaccardelli, C.

AU - Von Zanthier, C.

PY - 1989/1/1

Y1 - 1989/1/1

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AB - We have searched for events with new-particle topologies in 390 hadronic Z decays with the Mark II detector at the SLAC Linear Collider. We place 95%-confidence-level lower limits of 40.7 GeV/c2 for the top-quark mass, 42.0 GeV/c2 for the mass of a fourth-generation charge -(1/3 quark, and 41.3 GeV/c2 for the mass of an unstable Dirac neutral lepton.

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