Measurement of R and search for the top quark in e+e- annihilation between 39.8 and 45.2 GeV

M. Althoff; W. Braunschweig; F. J. Kirschfink; K. Lübelsmeyer; H. U. Martyn; G. Peise; J. Rimkus; P. Rosskamp; H. G. Sander; D. Schmitz; H. Siebke; W. Wallraff; H. M. Fischer; H. Hartmann; W. Hillen; A. Jocksch; G. Knop; L. Köpke; H. Kolanoski; H. Kück; V. Mertens; R. Wedemeyer; M. Wollstadt; Y. Eisenberg; K. Gather; H. Hultschig; P. Joos; U. Kötz; H. Kowalski; A. Ladage; B. Löhr; D. Lüke; P. Mättig; D. Notz; R. J. Nowak; J. Pyrlik; M. Rushton; W. Schütte; D. Trines; G. Wolf; Ch Xiao; R. Fohrmann; E. Hilger; T. Kracht; H. L. Krasemann; P. Leu; E. Lohrmann; D. Pandoulas; G. Poelz; K. U. Pösnecker; B. H. Wiik; R. Beuselinck; D. M. Binnie; A. J. Campbell; P. J. Dornan; B. Foster; D. A. Garbutt; C. Jenkins; T. D. Jones; W. G. Jones; J. McCardle; J. K. Sedgbeer; J. Thomas; W. A.T. Wan Abdullah; K. W. Bell; M. G. Bowler; P. Bull; R. J. Cashmore; P. E.L. Clarke; R. Devenish; P. Grossmann; C. M. Hawkes; S. L. Lloyd; G. L. Salmon; T. R. Wyatt; C. Youngman; G. E. Forden; J. C. Hart; J. Harvey; D. K. Hasell; J. Proudfoot; D. H. Saxon; F. Barreiro; M. Dittmar; M. Holder; G. Kreutz; B. Neumann; E. Duchovni; U. Karshon; G. Mikenberg; R. Mir; D. Revel; E. Ronat; A. Shapira; G. Yekutieli; G. Baranko; T. Barklow; A. Caldwell; M. Cherney; J. M. Izen; M. Mermikides; G. Rudolph; D. Strom; M. Takashima; H. Venkataramania; E. Wicklund; Sau Lan Wu; G. Zobernig

doi:10.1016/0370-2693(84)91936-1

Measurement of R and search for the top quark in e⁺e^- annihilation between 39.8 and 45.2 GeV

M. Althoff, W. Braunschweig, F. J. Kirschfink, K. Lübelsmeyer, H. U. Martyn, G. Peise, J. Rimkus, P. Rosskamp, H. G. Sander, D. Schmitz, H. Siebke, W. Wallraff, H. M. Fischer, H. Hartmann, W. Hillen, A. Jocksch, G. Knop, L. Köpke, H. Kolanoski, H. KückV. Mertens, R. Wedemeyer, M. Wollstadt, Y. Eisenberg, K. Gather, H. Hultschig, P. Joos, U. Kötz, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, D. Notz, R. J. Nowak, J. Pyrlik, M. Rushton, W. Schütte, D. Trines, G. Wolf, Ch Xiao, R. Fohrmann, E. Hilger, T. Kracht, H. L. Krasemann, P. Leu, E. Lohrmann, D. Pandoulas, G. Poelz, K. U. Pösnecker, B. H. Wiik, R. Beuselinck, D. M. Binnie, A. J. Campbell, P. J. Dornan, B. Foster, D. A. Garbutt, C. Jenkins, T. D. Jones, W. G. Jones, J. McCardle, J. K. Sedgbeer, J. Thomas, W. A.T. Wan Abdullah, K. W. Bell, M. G. Bowler, P. Bull, R. J. Cashmore, P. E.L. Clarke, R. Devenish, P. Grossmann, C. M. Hawkes, S. L. Lloyd, G. L. Salmon, T. R. Wyatt, C. Youngman, G. E. Forden, J. C. Hart, J. Harvey, D. K. Hasell, J. Proudfoot, D. H. Saxon, F. Barreiro, M. Dittmar, M. Holder, G. Kreutz, B. Neumann, E. Duchovni, U. Karshon, G. Mikenberg, R. Mir, D. Revel, E. Ronat, A. Shapira, G. Yekutieli, G. Baranko, T. Barklow, A. Caldwell, M. Cherney, J. M. Izen, M. Mermikides, G. Rudolph, D. Strom, M. Takashima, H. Venkataramania, E. Wicklund, Sau Lan Wu, G. Zobernig

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Abstract

e⁺e^- annihilation into hadrons was studied at CM energies between 39.8 and 45.2 GeV and a search was made for new heavy quarks. No evidence was found for the existence of a narrow state excluding the possible existence of the lowest vector toponium state in this mass range. A search for continuum production of heavy quarks led to lower mass limits for new quarks of 22.0 GeV (e_Q = 2 3) and 21.0 GeV (e_Q = 1 3). Quarks are found to be pointlike, the corresponding mass parameter being larger than 288 GeV. A fit of the QCD and the electroweak contributions to R=σ_tot/σ_μμ yielded sin²θW = 0.30_-0.07 ^+0.23.

Original language	English (US)
Pages (from-to)	441-448
Number of pages	8
Journal	Physics Letters B
Volume	138
Issue number	5-6
DOIs	https://doi.org/10.1016/0370-2693(84)91936-1
State	Published - Apr 26 1984
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/0370-2693(84)91936-1

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Althoff, M., Braunschweig, W., Kirschfink, F. J., Lübelsmeyer, K., Martyn, H. U., Peise, G., Rimkus, J., Rosskamp, P., Sander, H. G., Schmitz, D., Siebke, H., Wallraff, W., Fischer, H. M., Hartmann, H., Hillen, W., Jocksch, A., Knop, G., Köpke, L., Kolanoski, H., ... Zobernig, G. (1984). Measurement of R and search for the top quark in e⁺e^- annihilation between 39.8 and 45.2 GeV. Physics Letters B, 138(5-6), 441-448. https://doi.org/10.1016/0370-2693(84)91936-1

Althoff, M, Braunschweig, W, Kirschfink, FJ, Lübelsmeyer, K, Martyn, HU, Peise, G, Rimkus, J, Rosskamp, P, Sander, HG, Schmitz, D, Siebke, H, Wallraff, W, Fischer, HM, Hartmann, H, Hillen, W, Jocksch, A, Knop, G, Köpke, L, Kolanoski, H, Kück, H, Mertens, V, Wedemeyer, R, Wollstadt, M, Eisenberg, Y, Gather, K, Hultschig, H, Joos, P, Kötz, U, Kowalski, H, Ladage, A, Löhr, B, Lüke, D, Mättig, P, Notz, D, Nowak, RJ, Pyrlik, J, Rushton, M, Schütte, W, Trines, D, Wolf, G, Xiao, C, Fohrmann, R, Hilger, E, Kracht, T, Krasemann, HL, Leu, P, Lohrmann, E, Pandoulas, D, Poelz, G, Pösnecker, KU, Wiik, BH, Beuselinck, R, Binnie, DM, Campbell, AJ, Dornan, PJ, Foster, B, Garbutt, DA, Jenkins, C, Jones, TD, Jones, WG, McCardle, J, Sedgbeer, JK, Thomas, J, Wan Abdullah, WAT, Bell, KW, Bowler, MG, Bull, P, Cashmore, RJ, Clarke, PEL, Devenish, R, Grossmann, P, Hawkes, CM, Lloyd, SL, Salmon, GL, Wyatt, TR, Youngman, C, Forden, GE, Hart, JC, Harvey, J, Hasell, DK, Proudfoot, J, Saxon, DH, Barreiro, F, Dittmar, M, Holder, M, Kreutz, G, Neumann, B, Duchovni, E, Karshon, U, Mikenberg, G, Mir, R, Revel, D, Ronat, E, Shapira, A, Yekutieli, G, Baranko, G, Barklow, T, Caldwell, A, Cherney, M, Izen, JM, Mermikides, M, Rudolph, G, Strom, D, Takashima, M, Venkataramania, H, Wicklund, E, Wu, SL & Zobernig, G 1984, 'Measurement of R and search for the top quark in e⁺e^- annihilation between 39.8 and 45.2 GeV', Physics Letters B, vol. 138, no. 5-6, pp. 441-448. https://doi.org/10.1016/0370-2693(84)91936-1

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title = "Measurement of R and search for the top quark in e+e- annihilation between 39.8 and 45.2 GeV",

abstract = "e+e- annihilation into hadrons was studied at CM energies between 39.8 and 45.2 GeV and a search was made for new heavy quarks. No evidence was found for the existence of a narrow state excluding the possible existence of the lowest vector toponium state in this mass range. A search for continuum production of heavy quarks led to lower mass limits for new quarks of 22.0 GeV (eQ = 2 3) and 21.0 GeV (eQ = 1 3). Quarks are found to be pointlike, the corresponding mass parameter being larger than 288 GeV. A fit of the QCD and the electroweak contributions to R=σtot/σμμ yielded sin2θW = 0.30-0.07 +0.23.",

author = "M. Althoff and W. Braunschweig and Kirschfink, {F. J.} and K. L{\"u}belsmeyer and Martyn, {H. U.} and G. Peise and J. Rimkus and P. Rosskamp and Sander, {H. G.} and D. Schmitz and H. Siebke and W. Wallraff and Fischer, {H. M.} and H. Hartmann and W. Hillen and A. Jocksch and G. Knop and L. K{\"o}pke and H. Kolanoski and H. K{\"u}ck and V. Mertens and R. Wedemeyer and M. Wollstadt and Y. Eisenberg and K. Gather and H. Hultschig and P. Joos and U. K{\"o}tz and H. Kowalski and A. Ladage and B. L{\"o}hr and D. L{\"u}ke and P. M{\"a}ttig and D. Notz and Nowak, {R. J.} and J. Pyrlik and M. Rushton and W. Sch{\"u}tte and D. Trines and G. Wolf and Ch Xiao and R. Fohrmann and E. Hilger and T. Kracht and Krasemann, {H. L.} and P. Leu and E. Lohrmann and D. Pandoulas and G. Poelz and P{\"o}snecker, {K. U.} and Wiik, {B. H.} and R. Beuselinck and Binnie, {D. M.} and Campbell, {A. J.} and Dornan, {P. J.} and B. Foster and Garbutt, {D. A.} and C. Jenkins and Jones, {T. D.} and Jones, {W. G.} and J. McCardle and Sedgbeer, {J. K.} and J. Thomas and {Wan Abdullah}, {W. A.T.} and Bell, {K. W.} and Bowler, {M. G.} and P. Bull and Cashmore, {R. J.} and Clarke, {P. E.L.} and R. Devenish and P. Grossmann and Hawkes, {C. M.} and Lloyd, {S. L.} and Salmon, {G. L.} and Wyatt, {T. R.} and C. Youngman and Forden, {G. E.} and Hart, {J. C.} and J. Harvey and Hasell, {D. K.} and J. Proudfoot and Saxon, {D. H.} and F. Barreiro and M. Dittmar and M. Holder and G. Kreutz and B. Neumann and E. Duchovni and U. Karshon and G. Mikenberg and R. Mir and D. Revel and E. Ronat and A. Shapira and G. Yekutieli and G. Baranko and T. Barklow and A. Caldwell and M. Cherney and Izen, {J. M.} and M. Mermikides and G. Rudolph and D. Strom and M. Takashima and H. Venkataramania and E. Wicklund and Wu, {Sau Lan} and G. Zobernig",

year = "1984",

month = apr,

day = "26",

doi = "10.1016/0370-2693(84)91936-1",

language = "English (US)",

volume = "138",

pages = "441--448",

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

issn = "0370-2693",

publisher = "Elsevier",

number = "5-6",

}

TY - JOUR

T1 - Measurement of R and search for the top quark in e+e- annihilation between 39.8 and 45.2 GeV

AU - Althoff, M.

AU - Braunschweig, W.

AU - Kirschfink, F. J.

AU - Lübelsmeyer, K.

AU - Martyn, H. U.

AU - Peise, G.

AU - Rimkus, J.

AU - Rosskamp, P.

AU - Sander, H. G.

AU - Schmitz, D.

AU - Siebke, H.

AU - Wallraff, W.

AU - Fischer, H. M.

AU - Hartmann, H.

AU - Hillen, W.

AU - Jocksch, A.

AU - Knop, G.

AU - Köpke, L.

AU - Kolanoski, H.

AU - Kück, H.

AU - Mertens, V.

AU - Wedemeyer, R.

AU - Wollstadt, M.

AU - Eisenberg, Y.

AU - Gather, K.

AU - Hultschig, H.

AU - Joos, P.

AU - Kötz, U.

AU - Kowalski, H.

AU - Ladage, A.

AU - Löhr, B.

AU - Lüke, D.

AU - Mättig, P.

AU - Notz, D.

AU - Nowak, R. J.

AU - Pyrlik, J.

AU - Rushton, M.

AU - Schütte, W.

AU - Trines, D.

AU - Wolf, G.

AU - Xiao, Ch

AU - Fohrmann, R.

AU - Hilger, E.

AU - Kracht, T.

AU - Krasemann, H. L.

AU - Leu, P.

AU - Lohrmann, E.

AU - Pandoulas, D.

AU - Poelz, G.

AU - Pösnecker, K. U.

AU - Wiik, B. H.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Campbell, A. J.

AU - Dornan, P. J.

AU - Foster, B.

AU - Garbutt, D. A.

AU - Jenkins, C.

AU - Jones, T. D.

AU - Jones, W. G.

AU - McCardle, J.

AU - Sedgbeer, J. K.

AU - Thomas, J.

AU - Wan Abdullah, W. A.T.

AU - Bell, K. W.

AU - Bowler, M. G.

AU - Bull, P.

AU - Cashmore, R. J.

AU - Clarke, P. E.L.

AU - Devenish, R.

AU - Grossmann, P.

AU - Hawkes, C. M.

AU - Lloyd, S. L.

AU - Salmon, G. L.

AU - Wyatt, T. R.

AU - Youngman, C.

AU - Forden, G. E.

AU - Hart, J. C.

AU - Harvey, J.

AU - Hasell, D. K.

AU - Proudfoot, J.

AU - Saxon, D. H.

AU - Barreiro, F.

AU - Dittmar, M.

AU - Holder, M.

AU - Kreutz, G.

AU - Neumann, B.

AU - Duchovni, E.

AU - Karshon, U.

AU - Mikenberg, G.

AU - Mir, R.

AU - Revel, D.

AU - Ronat, E.

AU - Shapira, A.

AU - Yekutieli, G.

AU - Baranko, G.

AU - Barklow, T.

AU - Caldwell, A.

AU - Cherney, M.

AU - Izen, J. M.

AU - Mermikides, M.

AU - Rudolph, G.

AU - Strom, D.

AU - Takashima, M.

AU - Venkataramania, H.

AU - Wicklund, E.

AU - Wu, Sau Lan

AU - Zobernig, G.

PY - 1984/4/26

Y1 - 1984/4/26

N2 - e+e- annihilation into hadrons was studied at CM energies between 39.8 and 45.2 GeV and a search was made for new heavy quarks. No evidence was found for the existence of a narrow state excluding the possible existence of the lowest vector toponium state in this mass range. A search for continuum production of heavy quarks led to lower mass limits for new quarks of 22.0 GeV (eQ = 2 3) and 21.0 GeV (eQ = 1 3). Quarks are found to be pointlike, the corresponding mass parameter being larger than 288 GeV. A fit of the QCD and the electroweak contributions to R=σtot/σμμ yielded sin2θW = 0.30-0.07 +0.23.

AB - e+e- annihilation into hadrons was studied at CM energies between 39.8 and 45.2 GeV and a search was made for new heavy quarks. No evidence was found for the existence of a narrow state excluding the possible existence of the lowest vector toponium state in this mass range. A search for continuum production of heavy quarks led to lower mass limits for new quarks of 22.0 GeV (eQ = 2 3) and 21.0 GeV (eQ = 1 3). Quarks are found to be pointlike, the corresponding mass parameter being larger than 288 GeV. A fit of the QCD and the electroweak contributions to R=σtot/σμμ yielded sin2θW = 0.30-0.07 +0.23.

UR - http://www.scopus.com/inward/record.url?scp=0013236428&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0013236428&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(84)91936-1

DO - 10.1016/0370-2693(84)91936-1

M3 - Article

AN - SCOPUS:0013236428

VL - 138

SP - 441

EP - 448

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

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

SN - 0370-2693

IS - 5-6

ER -

Measurement of R and search for the top quark in e⁺e^- annihilation between 39.8 and 45.2 GeV

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