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; 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; S. 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

doi:10.1103/PhysRevLett.63.2447

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. ChmeissaniD. 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, S. 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

^*Corresponding author for this work

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

35 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 language	English
Pages (from-to)	2447-2451
Number of pages	5
Journal	Physical Review Letters
Volume	63
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.63.2447
Publication status	Published - 1989
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.63.2447

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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., ... 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

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

@article{49ca9754407a429587251bb5aca24df3,

title = "Searches for new quarks and leptons produced in Z-boson decay",

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.",

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

year = "1989",

doi = "10.1103/PhysRevLett.63.2447",

language = "English",

volume = "63",

pages = "2447--2451",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "22",

}

TY - JOUR

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, S.

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

Y1 - 1989

N2 - 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.

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.

UR - http://www.scopus.com/inward/record.url?scp=4243460461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4243460461&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.63.2447

DO - 10.1103/PhysRevLett.63.2447

M3 - Article

AN - SCOPUS:4243460461

SN - 0031-9007

VL - 63

SP - 2447

EP - 2451

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

ER -

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

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