A study of jet production rates and a test of QCD on the Z0 resonance

M. Z. Akrawy; G. Alexander; J. Allison; P. P. Allport; K. J. Anderson; J. C. Armitage; G. T.J. Arnison; P. Ashton; G. Azuelos; J. T.M. Baines; A. H. Ball; J. Banks; G. J. Barker; R. J. Barlow; J. R. Batley; G. Bavaria; C. Beard; F. Beck; K. W. Bell; G. Bella; S. Bethke; O. Biebel; I. J. Bloodworth; P. Bock; H. Boerner; H. Breuker; R. M. Brown; R. Brun; A. Buijs; H. J. Burckhart; P. Capiluppi; R. K. Carnegie; A. A. Carter; J. R. Carter; C. Y. Chang; D. G. Charlton; J. T.M. Chrin; I. Cohen; J. E. Conboy; M. Couch; M. Coupland; M. Cuffiani; S. Dado; G. M. Dallavalle; O. W. Davies; M. M. Deninno; A. Dieckmann; M. Dittmar; M. S. Dixit; D. Duchesneau; E. Duchovni; I. P. Duerdoth; D. Dumas; H. El Mamouni; P. A. Elcombe; P. G. Estabrooks; F. Fabbri; P. Farthouat; H. M. Fischer; D. G. Fong; M. T. French; C. Fukunaga; B. Gandois; O. Ganel; J. W. Gary; N. I. Geddes; C. N.P. Gee; C. Geich-Gimbel; S. W. Gensler; F. X. Gentit; G. Giacomelli; W. R. Gibson; J. D. Gillies; J. Goldberg; M. J. Goodrick; W. Gorn; D. Granite; E. Gross; P. Grosse-Wiesmann; J. Grunhaus; H. Hagedorn; J. Hagemann; M. Hansroul; C. K. Hargrove; J. Hart; P. M. Hattersley; D. Hatzifotiadou; M. Hauschild; C. M. Hawkes; E. Heflin; J. Heintze; R. J. Hemingway; R. D. Heuer; J. C. Hill; S. J. Hillier; P. S. Hinde; C. Ho; J. D. Hobbs; P. R. Hobson; D. Hochman; B. Holl; R. J. Homer; S. R. Hou; C. P. Howarth; R. E. Hughes-Jones; P. Igo-Kemenes; M. Imori; D. C. Imrie; A. Jawahery; P. W. Jeffreys; H. Jeremie; M. Jimack; E. Jin; M. Jobes; R. W.L. Jones; P. Jovanovic; D. Karlen; K. Kawagoe; T. Kawamoto; R. G. Kellogg; B. W. Kennedy; C. Kleinwort; D. E. Klem; G. Knop; T. Kobayashi; L. Köpke; T. P. Kokott; M. Koshiba; R. Kowalewski; H. Kreutzmann; J. Von Krogh; J. Kroll; P. Kyberd; G. D. Lafferty; F. Lamarche; W. J. Larson; M. M.B. Lasota; J. G. Layter; P. Le Du; P. Leblanc; D. Lellouch; P. Lennert; L. Lessard; L. Levinson; S. L. Lloyd; F. K. Loebinger; J. M. Lorah; B. Lorazo; M. J. Losty; J. Ludwig; N. Lupu; J. Ma; A. A. Macbeth; M. Mannelli; S. Marcellini; G. Maringer; J. P. Martin; T. Mashimo; P. Mättig; U. Maur; T. J. McMahon; A. C. McPherson; F. Meijers; D. Menszner; F. S. Merritt; H. Mes; A. Michelini; R. P. Middleton; G. Mikenberg; D. J. Miller; C. Milstene; M. Minowa; W. Mohr; A. Montanari; T. Mori; M. W. Moss; A. Muller; P. G. Murphy; W. J. Murray; B. Nellen; H. H. Nguyen; M. Nozaki; A. J.P. O'Dowd; S. W. O'Neale; B. O'Neill; F. G. Oakham; F. Odorici; M. Ogg; H. Oh; M. J. Oreglia; S. Orito; G. N. Patrick; S. J. Pawley; A. Perez; J. E. Pilcher; J. L. Pinfold; D. E. Plane; B. Poli; A. Possoz; A. Pouladdej; T. W. Pritchard; G. Quast; J. Raab; M. W. Redmond; D. L. Rees; M. Regimbald; K. Riles; C. M. Roach; F. Roehner; A. Rollnik; J. M. Roney; A. M. Rossi; P. Routenburg; K. Runge; O. Runolfsson; S. Sanghera; R. A. Sansum; M. Sasaki; B. J. Saunders; A. D. Schaile; O. Schaile; W. Schappert; P. Scharff-Hansen; H. von der Schmitt; S. Schreiber; J. Schwarz; A. Shapira; B. C. Shen; P. Sherwood; A. Simon; G. P. Siroli; A. Skuja; A. M. Smith; T. J. Smith; G. A. Snow; E. J. Spreadbury; R. W. Springer; M. Sproston; K. Stephens; H. E. Stier; R. Ströhmer; D. Strom; H. Takeda; T. Takeshita; T. Tsukamoto; M. F. Turner; G. Tysarczyk; D. van den Plas; G. J. Vandalen; C. J. Virtue; A. Wagner; C. Wahl; H. Wang; C. P. Ward; D. R. Ward; J. Waterhouse; P. M. Watkins; A. T. Watson; N. K. Watson; M. Weber; S. Weisz; N. Wermes; M. Weymann; G. W. Wilson; J. A. Wilson; I. Wingerter; V. H. Winterer; N. C. Wood; S. Wotton; B. Wuensch; T. R. Wyatt; R. Yaari; H. Yamashita; Y. Yang; G. Yekutieli; W. Zeuner; G. T. Zorn; S. Zylberajch

doi:10.1016/0370-2693(90)91983-I

A study of jet production rates and a test of QCD on the Z⁰ resonance

M. Z. Akrawy^*, G. Alexander, J. Allison, P. P. Allport, K. J. Anderson, J. C. Armitage, G. T.J. Arnison, P. Ashton, G. Azuelos, J. T.M. Baines, A. H. Ball, J. Banks, G. J. Barker, R. J. Barlow, J. R. Batley, G. Bavaria, C. Beard, F. Beck, K. W. Bell, G. BellaS. Bethke, O. Biebel, I. J. Bloodworth, P. Bock, H. Boerner, H. Breuker, R. M. Brown, R. Brun, A. Buijs, H. J. Burckhart, P. Capiluppi, R. K. Carnegie, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, J. T.M. Chrin, I. Cohen, J. E. Conboy, M. Couch, M. Coupland, M. Cuffiani, S. Dado, G. M. Dallavalle, O. W. Davies, M. M. Deninno, A. Dieckmann, M. Dittmar, M. S. Dixit, D. Duchesneau, E. Duchovni, I. P. Duerdoth, D. Dumas, H. El Mamouni, P. A. Elcombe, P. G. Estabrooks, F. Fabbri, P. Farthouat, H. M. Fischer, D. G. Fong, M. T. French, C. Fukunaga, B. Gandois, O. Ganel, J. W. Gary, N. I. Geddes, C. N.P. Gee, C. Geich-Gimbel, S. W. Gensler, F. X. Gentit, G. Giacomelli, W. R. Gibson, J. D. Gillies, J. Goldberg, M. J. Goodrick, W. Gorn, D. Granite, E. Gross, P. Grosse-Wiesmann, J. Grunhaus, H. Hagedorn, J. Hagemann, M. Hansroul, C. K. Hargrove, J. Hart, P. M. Hattersley, D. Hatzifotiadou, M. Hauschild, C. M. Hawkes, E. Heflin, J. Heintze, R. J. Hemingway, R. D. Heuer, J. C. Hill, S. J. Hillier, P. S. Hinde, C. Ho, J. D. Hobbs, P. R. Hobson, D. Hochman, B. Holl, R. J. Homer, S. R. Hou, C. P. Howarth, R. E. Hughes-Jones, P. Igo-Kemenes, M. Imori, D. C. Imrie, A. Jawahery, P. W. Jeffreys, H. Jeremie, M. Jimack, E. Jin, M. Jobes, R. W.L. Jones, P. Jovanovic, D. Karlen, K. Kawagoe, T. Kawamoto, R. G. Kellogg, B. W. Kennedy, C. Kleinwort, D. E. Klem, G. Knop, T. Kobayashi, L. Köpke, T. P. Kokott, M. Koshiba, R. Kowalewski, H. Kreutzmann, J. Von Krogh, J. Kroll, P. Kyberd, G. D. Lafferty, F. Lamarche, W. J. Larson, M. M.B. Lasota, J. G. Layter, P. Le Du, P. Leblanc, D. Lellouch, P. Lennert, L. Lessard, L. Levinson, S. L. Lloyd, F. K. Loebinger, J. M. Lorah, B. Lorazo, M. J. Losty, J. Ludwig, N. Lupu, J. Ma, A. A. Macbeth, M. Mannelli, S. Marcellini, G. Maringer, J. P. Martin, T. Mashimo, P. Mättig, U. Maur, T. J. McMahon, A. C. McPherson, F. Meijers, D. Menszner, F. S. Merritt, H. Mes, A. Michelini, R. P. Middleton, G. Mikenberg, D. J. Miller, C. Milstene, M. Minowa, W. Mohr, A. Montanari, T. Mori, M. W. Moss, A. Muller, P. G. Murphy, W. J. Murray, B. Nellen, H. H. Nguyen, M. Nozaki, A. J.P. O'Dowd, S. W. O'Neale, B. O'Neill, F. G. Oakham, F. Odorici, M. Ogg, H. Oh, M. J. Oreglia, S. Orito, G. N. Patrick, S. J. Pawley, A. Perez, J. E. Pilcher, J. L. Pinfold, D. E. Plane, B. Poli, A. Possoz, A. Pouladdej, T. W. Pritchard, G. Quast, J. Raab, M. W. Redmond, D. L. Rees, M. Regimbald, K. Riles, C. M. Roach, F. Roehner, A. Rollnik, J. M. Roney, A. M. Rossi, P. Routenburg, K. Runge, O. Runolfsson, S. Sanghera, R. A. Sansum, M. Sasaki, B. J. Saunders, A. D. Schaile, O. Schaile, W. Schappert, P. Scharff-Hansen, H. von der Schmitt, S. Schreiber, J. Schwarz, A. Shapira, B. C. Shen, P. Sherwood, A. Simon, G. P. Siroli, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, E. J. Spreadbury, R. W. Springer, M. Sproston, K. Stephens, H. E. Stier, R. Ströhmer, D. Strom, H. Takeda, T. Takeshita, T. Tsukamoto, M. F. Turner, G. Tysarczyk, D. van den Plas, G. J. Vandalen, C. J. Virtue, A. Wagner, C. Wahl, H. Wang, C. P. Ward, D. R. Ward, J. Waterhouse, P. M. Watkins, A. T. Watson, N. K. Watson, M. Weber, S. Weisz, N. Wermes, M. Weymann, G. W. Wilson, J. A. Wilson, I. Wingerter, V. H. Winterer, N. C. Wood, S. Wotton, B. Wuensch, T. R. Wyatt, R. Yaari, H. Yamashita, Y. Yang, G. Yekutieli, W. Zeuner, G. T. Zorn, S. Zylberajch

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

Relative production rates of multijet hadronic final states of Z⁰ boson decays, observed in e⁺e^- annihilation around 91 GeV centre of mass energy, are presented. The data can be well described by analytic O(α_s²) QCD calculations and by QCD shower model calaculations with parameters as determined at lower energies. A first judgement of Λ_MS and of the renormalization scale μ² in O(α_s²) QCD results in values similar to those obtained in the continuum of e⁺e^- annihilations. Significant scaling violations are observed when the 3-jet fractions are compared to the corresponding results from smaller centre of mass energies. They can be interpreted as being entirely due tot the energy dependence of α_s, as proposed by the nonabelian nature of QCD, The possibility of an energy independent coupling constant can be excluded with a significance of 5.7 standard deviations.

Original language	English
Pages (from-to)	389-398
Number of pages	10
Journal	Physics Letters B
Volume	235
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(90)91983-I
State	Published - 1 Feb 1990

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10.1016/0370-2693(90)91983-I

Cite this

Akrawy, M. Z., Alexander, G., Allison, J., Allport, P. P., Anderson, K. J., Armitage, J. C., Arnison, G. T. J., Ashton, P., Azuelos, G., Baines, J. T. M., Ball, A. H., Banks, J., Barker, G. J., Barlow, R. J., Batley, J. R., Bavaria, G., Beard, C., Beck, F., Bell, K. W., ... Zylberajch, S. (1990). A study of jet production rates and a test of QCD on the Z⁰ resonance. Physics Letters B, 235(3-4), 389-398. https://doi.org/10.1016/0370-2693(90)91983-I

@article{fb8f68e7326644c9ab707ae140274171,

title = "A study of jet production rates and a test of QCD on the Z0 resonance",

abstract = "Relative production rates of multijet hadronic final states of Z0 boson decays, observed in e+e- annihilation around 91 GeV centre of mass energy, are presented. The data can be well described by analytic O(αs2) QCD calculations and by QCD shower model calaculations with parameters as determined at lower energies. A first judgement of ΛMS and of the renormalization scale μ2 in O(αs2) QCD results in values similar to those obtained in the continuum of e+e- annihilations. Significant scaling violations are observed when the 3-jet fractions are compared to the corresponding results from smaller centre of mass energies. They can be interpreted as being entirely due tot the energy dependence of αs, as proposed by the nonabelian nature of QCD, The possibility of an energy independent coupling constant can be excluded with a significance of 5.7 standard deviations.",

author = "Akrawy, {M. Z.} and G. Alexander and J. Allison and Allport, {P. P.} and Anderson, {K. J.} and Armitage, {J. C.} and Arnison, {G. T.J.} and P. Ashton and G. Azuelos and Baines, {J. T.M.} and Ball, {A. H.} and J. Banks and Barker, {G. J.} and Barlow, {R. J.} and Batley, {J. R.} and G. Bavaria and C. Beard and F. Beck and Bell, {K. W.} and G. Bella and S. Bethke and O. Biebel and Bloodworth, {I. J.} and P. Bock and H. Boerner and H. Breuker and Brown, {R. M.} and R. Brun and A. Buijs and Burckhart, {H. J.} and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and Chrin, {J. T.M.} and I. Cohen and Conboy, {J. E.} and M. Couch and M. Coupland and M. Cuffiani and S. Dado and Dallavalle, {G. M.} and Davies, {O. W.} and Deninno, {M. M.} and A. Dieckmann and M. Dittmar and Dixit, {M. S.} and D. Duchesneau and E. Duchovni and Duerdoth, {I. P.} and D. Dumas and {El Mamouni}, H. and Elcombe, {P. A.} and Estabrooks, {P. G.} and F. Fabbri and P. Farthouat and Fischer, {H. M.} and Fong, {D. G.} and French, {M. T.} and C. Fukunaga and B. Gandois and O. Ganel and Gary, {J. W.} and Geddes, {N. I.} and Gee, {C. N.P.} and C. Geich-Gimbel and Gensler, {S. W.} and Gentit, {F. X.} and G. Giacomelli and Gibson, {W. R.} and Gillies, {J. D.} and J. Goldberg and Goodrick, {M. J.} and W. Gorn and D. Granite and E. Gross and P. Grosse-Wiesmann and J. Grunhaus and H. Hagedorn and J. Hagemann and M. Hansroul and Hargrove, {C. K.} and J. Hart and Hattersley, {P. M.} and D. Hatzifotiadou and M. Hauschild and Hawkes, {C. M.} and E. Heflin and J. Heintze and Hemingway, {R. J.} and Heuer, {R. D.} and Hill, {J. C.} and Hillier, {S. J.} and Hinde, {P. S.} and C. Ho and Hobbs, {J. D.} and Hobson, {P. R.} and D. Hochman and B. Holl and Homer, {R. J.} and Hou, {S. R.} and Howarth, {C. P.} and Hughes-Jones, {R. E.} and P. Igo-Kemenes and M. Imori and Imrie, {D. C.} and A. Jawahery and Jeffreys, {P. W.} and H. Jeremie and M. Jimack and E. Jin and M. Jobes and Jones, {R. W.L.} and P. Jovanovic and D. Karlen and K. Kawagoe and T. Kawamoto and Kellogg, {R. G.} and Kennedy, {B. W.} and C. Kleinwort and Klem, {D. E.} and G. Knop and T. Kobayashi and L. K{\"o}pke and Kokott, {T. P.} and M. Koshiba and R. Kowalewski and H. Kreutzmann and {Von Krogh}, J. and J. Kroll and P. Kyberd and Lafferty, {G. D.} and F. Lamarche and Larson, {W. J.} and Lasota, {M. M.B.} and Layter, {J. G.} and {Le Du}, P. and P. Leblanc and D. Lellouch and P. Lennert and L. Lessard and L. Levinson and Lloyd, {S. L.} and Loebinger, {F. K.} and Lorah, {J. M.} and B. Lorazo and Losty, {M. J.} and J. Ludwig and N. Lupu and J. Ma and Macbeth, {A. A.} and M. Mannelli and S. Marcellini and G. Maringer and Martin, {J. P.} and T. Mashimo and P. M{\"a}ttig and U. Maur and McMahon, {T. J.} and McPherson, {A. C.} and F. Meijers and D. Menszner and Merritt, {F. S.} and H. Mes and A. Michelini and Middleton, {R. P.} and G. Mikenberg and Miller, {D. J.} and C. Milstene and M. Minowa and W. Mohr and A. Montanari and T. Mori and Moss, {M. W.} and A. Muller and Murphy, {P. G.} and Murray, {W. J.} and B. Nellen and Nguyen, {H. H.} and M. Nozaki and O'Dowd, {A. J.P.} and O'Neale, {S. W.} and B. O'Neill and Oakham, {F. G.} and F. Odorici and M. Ogg and H. Oh and Oreglia, {M. J.} and S. Orito and Patrick, {G. N.} and Pawley, {S. J.} and A. Perez and Pilcher, {J. E.} and Pinfold, {J. L.} and Plane, {D. E.} and B. Poli and A. Possoz and A. Pouladdej and Pritchard, {T. W.} and G. Quast and J. Raab and Redmond, {M. W.} and Rees, {D. L.} and M. Regimbald and K. Riles and Roach, {C. M.} and F. Roehner and A. Rollnik and Roney, {J. M.} and Rossi, {A. M.} and P. Routenburg and K. Runge and O. Runolfsson and S. Sanghera and Sansum, {R. A.} and M. Sasaki and Saunders, {B. J.} and Schaile, {A. D.} and O. Schaile and W. Schappert and P. Scharff-Hansen and {von der Schmitt}, H. and S. Schreiber and J. Schwarz and A. Shapira and Shen, {B. C.} and P. Sherwood and A. Simon and Siroli, {G. P.} and A. Skuja and Smith, {A. M.} and Smith, {T. J.} and Snow, {G. A.} and Spreadbury, {E. J.} and Springer, {R. W.} and M. Sproston and K. Stephens and Stier, {H. E.} and R. Str{\"o}hmer and D. Strom and H. Takeda and T. Takeshita and T. Tsukamoto and Turner, {M. F.} and G. Tysarczyk and {van den Plas}, D. and Vandalen, {G. J.} and Virtue, {C. J.} and A. Wagner and C. Wahl and H. Wang and Ward, {C. P.} and Ward, {D. R.} and J. Waterhouse and Watkins, {P. M.} and Watson, {A. T.} and Watson, {N. K.} and M. Weber and S. Weisz and N. Wermes and M. Weymann and Wilson, {G. W.} and Wilson, {J. A.} and I. Wingerter and Winterer, {V. H.} and Wood, {N. C.} and S. Wotton and B. Wuensch and Wyatt, {T. R.} and R. Yaari and H. Yamashita and Y. Yang and G. Yekutieli and W. Zeuner and Zorn, {G. T.} and S. Zylberajch",

note = "Funding Information: It is a pleasure to thank the LEP Division for the remarkably smooth start-up of the machine and their continuing close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the following: The Bundesministerium ffir Forschung und Technologic, FRG, The Department of Energy, USA, The Institut de Recherche Fondamentale do Commissariat ~ l'Energic Atomique, The Israeli MinistD' of Science, The Minerva Gesellschaft, The National Science Foundation, USA, The Natural Sciences and Engineering Research Council, Canada, The Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, The Science and Engineering Research Council, UK and The A.P. Sloan Foundation.",

year = "1990",

month = feb,

day = "1",

doi = "10.1016/0370-2693(90)91983-I",

language = "אנגלית",

volume = "235",

pages = "389--398",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}

Akrawy, MZ, Alexander, G, Allison, J, Allport, PP, Anderson, KJ, Armitage, JC, Arnison, GTJ, Ashton, P, Azuelos, G, Baines, JTM, Ball, AH, Banks, J, Barker, GJ, Barlow, RJ, Batley, JR, Bavaria, G, Beard, C, Beck, F, Bell, KW, Bella, G, Bethke, S, Biebel, O, Bloodworth, IJ, Bock, P, Boerner, H, Breuker, H, Brown, RM, Brun, R, Buijs, A, Burckhart, HJ, Capiluppi, P, Carnegie, RK, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Chrin, JTM, Cohen, I, Conboy, JE, Couch, M, Coupland, M, Cuffiani, M, Dado, S, Dallavalle, GM, Davies, OW, Deninno, MM, Dieckmann, A, Dittmar, M, Dixit, MS, Duchesneau, D, Duchovni, E, Duerdoth, IP, Dumas, D, El Mamouni, H, Elcombe, PA, Estabrooks, PG, Fabbri, F, Farthouat, P, Fischer, HM, Fong, DG, French, MT, Fukunaga, C, Gandois, B, Ganel, O, Gary, JW, Geddes, NI, Gee, CNP, Geich-Gimbel, C, Gensler, SW, Gentit, FX, Giacomelli, G, Gibson, WR, Gillies, JD, Goldberg, J, Goodrick, MJ, Gorn, W, Granite, D, Gross, E, Grosse-Wiesmann, P, Grunhaus, J, Hagedorn, H, Hagemann, J, Hansroul, M, Hargrove, CK, Hart, J, Hattersley, PM, Hatzifotiadou, D, Hauschild, M, Hawkes, CM, Heflin, E, Heintze, J, Hemingway, RJ, Heuer, RD, Hill, JC, Hillier, SJ, Hinde, PS, Ho, C, Hobbs, JD, Hobson, PR, Hochman, D, Holl, B, Homer, RJ, Hou, SR, Howarth, CP, Hughes-Jones, RE, Igo-Kemenes, P, Imori, M, Imrie, DC, Jawahery, A, Jeffreys, PW, Jeremie, H, Jimack, M, Jin, E, Jobes, M, Jones, RWL, Jovanovic, P, Karlen, D, Kawagoe, K, Kawamoto, T, Kellogg, RG, Kennedy, BW, Kleinwort, C, Klem, DE, Knop, G, Kobayashi, T, Köpke, L, Kokott, TP, Koshiba, M, Kowalewski, R, Kreutzmann, H, Von Krogh, J, Kroll, J, Kyberd, P, Lafferty, GD, Lamarche, F, Larson, WJ, Lasota, MMB, Layter, JG, Le Du, P, Leblanc, P, Lellouch, D, Lennert, P, Lessard, L, Levinson, L, Lloyd, SL, Loebinger, FK, Lorah, JM, Lorazo, B, Losty, MJ, Ludwig, J, Lupu, N, Ma, J, Macbeth, AA, Mannelli, M, Marcellini, S, Maringer, G, Martin, JP, Mashimo, T, Mättig, P, Maur, U, McMahon, TJ, McPherson, AC, Meijers, F, Menszner, D, Merritt, FS, Mes, H, Michelini, A, Middleton, RP, Mikenberg, G, Miller, DJ, Milstene, C, Minowa, M, Mohr, W, Montanari, A, Mori, T, Moss, MW, Muller, A, Murphy, PG, Murray, WJ, Nellen, B, Nguyen, HH, Nozaki, M, O'Dowd, AJP, O'Neale, SW, O'Neill, B, Oakham, FG, Odorici, F, Ogg, M, Oh, H, Oreglia, MJ, Orito, S, Patrick, GN, Pawley, SJ, Perez, A, Pilcher, JE, Pinfold, JL, Plane, DE, Poli, B, Possoz, A, Pouladdej, A, Pritchard, TW, Quast, G, Raab, J, Redmond, MW, Rees, DL, Regimbald, M, Riles, K, Roach, CM, Roehner, F, Rollnik, A, Roney, JM, Rossi, AM, Routenburg, P, Runge, K, Runolfsson, O, Sanghera, S, Sansum, RA, Sasaki, M, Saunders, BJ, Schaile, AD, Schaile, O, Schappert, W, Scharff-Hansen, P, von der Schmitt, H, Schreiber, S, Schwarz, J, Shapira, A, Shen, BC, Sherwood, P, Simon, A, Siroli, GP, Skuja, A, Smith, AM, Smith, TJ, Snow, GA, Spreadbury, EJ, Springer, RW, Sproston, M, Stephens, K, Stier, HE, Ströhmer, R, Strom, D, Takeda, H, Takeshita, T, Tsukamoto, T, Turner, MF, Tysarczyk, G, van den Plas, D, Vandalen, GJ, Virtue, CJ, Wagner, A, Wahl, C, Wang, H, Ward, CP, Ward, DR, Waterhouse, J, Watkins, PM, Watson, AT, Watson, NK, Weber, M, Weisz, S, Wermes, N, Weymann, M, Wilson, GW, Wilson, JA, Wingerter, I, Winterer, VH, Wood, NC, Wotton, S, Wuensch, B, Wyatt, TR, Yaari, R, Yamashita, H, Yang, Y, Yekutieli, G, Zeuner, W, Zorn, GT & Zylberajch, S 1990, 'A study of jet production rates and a test of QCD on the Z⁰ resonance', Physics Letters B, vol. 235, no. 3-4, pp. 389-398. https://doi.org/10.1016/0370-2693(90)91983-I

TY - JOUR

T1 - A study of jet production rates and a test of QCD on the Z0 resonance

AU - Akrawy, M. Z.

AU - Alexander, G.

AU - Allison, J.

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N1 - Funding Information: It is a pleasure to thank the LEP Division for the remarkably smooth start-up of the machine and their continuing close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the following: The Bundesministerium ffir Forschung und Technologic, FRG, The Department of Energy, USA, The Institut de Recherche Fondamentale do Commissariat ~ l'Energic Atomique, The Israeli MinistD' of Science, The Minerva Gesellschaft, The National Science Foundation, USA, The Natural Sciences and Engineering Research Council, Canada, The Japanese Ministry of Education, Science and Culture (the Monbusho) and a grant under the Monbusho International Science Research Program, The Science and Engineering Research Council, UK and The A.P. Sloan Foundation.

PY - 1990/2/1

Y1 - 1990/2/1

N2 - Relative production rates of multijet hadronic final states of Z0 boson decays, observed in e+e- annihilation around 91 GeV centre of mass energy, are presented. The data can be well described by analytic O(αs2) QCD calculations and by QCD shower model calaculations with parameters as determined at lower energies. A first judgement of ΛMS and of the renormalization scale μ2 in O(αs2) QCD results in values similar to those obtained in the continuum of e+e- annihilations. Significant scaling violations are observed when the 3-jet fractions are compared to the corresponding results from smaller centre of mass energies. They can be interpreted as being entirely due tot the energy dependence of αs, as proposed by the nonabelian nature of QCD, The possibility of an energy independent coupling constant can be excluded with a significance of 5.7 standard deviations.

AB - Relative production rates of multijet hadronic final states of Z0 boson decays, observed in e+e- annihilation around 91 GeV centre of mass energy, are presented. The data can be well described by analytic O(αs2) QCD calculations and by QCD shower model calaculations with parameters as determined at lower energies. A first judgement of ΛMS and of the renormalization scale μ2 in O(αs2) QCD results in values similar to those obtained in the continuum of e+e- annihilations. Significant scaling violations are observed when the 3-jet fractions are compared to the corresponding results from smaller centre of mass energies. They can be interpreted as being entirely due tot the energy dependence of αs, as proposed by the nonabelian nature of QCD, The possibility of an energy independent coupling constant can be excluded with a significance of 5.7 standard deviations.

UR - http://www.scopus.com/inward/record.url?scp=0000868773&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(90)91983-I

DO - 10.1016/0370-2693(90)91983-I

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

AN - SCOPUS:0000868773

SN - 0370-2693

VL - 235

SP - 389

EP - 398

JO - Physics Letters B

JF - Physics Letters B

IS - 3-4

ER -

A study of jet production rates and a test of QCD on the Z⁰ resonance

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