Precise determination of the Z resonance parameters at LEP

"Zedometry"

G. Abbiendi, C. Ainsley, P. F. Åkesson, G. Alexander, J. Allison, G. Anagnostou, K. J. Anderson, S. Arcelli, S. Asai, S. F. Ashby, D. Axen, G. Azuelos, I. Bailey, A. H. Ball, E. Barberio, R. J. Barlow, T. Behnke, K. W. Bell, G. Bella, A. Bellerive & 305 others G. Benelli, S. Bentvelsen, C. Beeston, S. Bethke, O. Biebel, I. J. Bloodworth, O. Boeriu, P. Bock, J. Böhme, D. Bonacorsi, M. Boutemeur, S. Braibant, P. Bright-Thomas, L. Brigliadori, R. M. Brown, H. J. Burckhart, J. Cammin, P. Capiluppi, R. K. Carnegie, B. Caron, A. A. Carter, J. R. Carter, C. Y. Chang, D. G. Charlton, P. E.L. Clarke, E. Clay, I. Cohen, J. E. Conboy, O. C. Cooke, J. Couchman, R. L. Coxe, A. Csilling, M. Cuffiani, S. Dado, G. M. Dallavalle, S. Dallison, C. Darling, A. de Roeck, E. A. de Wolf, P. Dervan, K. Desch, B. Dienes, M. S. Dixit, M. Donkers, J. Dubbert, E. Duchovni, G. Duckeck, I. P. Duerdoth, P. G. Estabrooks, E. Etzion, F. Fabbri, M. Fanti, L. Feld, P. Ferrari, F. Fiedler, I. Fleck, M. Ford, M. Foucher, A. Frey, A. Fürtjes, D. I. Futyan, P. Gagnon, J. Gascon, S. M. Gascon-Shotkin, J. W. Gary, G. Gaycken, C. Geich-Gimbel, G. Giacomelli, P. Giacomelli, R. Giacomelli, D. Glenzinski, J. Goldberg, C. Grandi, K. Graham, E. Gross, J. Grunhaus, M. Gruwé, P. O. Günther, C. Hajdu, G. G. Hanson, K. Harder, A. Harel, M. Harin-Dirac, P. A. Hart, M. Hauschild, C. M. Hawkes, R. Hawkings, R. J. Hemingway, C. Hensel, G. Herten, R. D. Heuer, M. D. Hildreth, J. C. Hill, S. J. Hillier, A. Hocker, K. Hoffman, R. J. Homer, A. K. Honma, D. Horváth, K. R. Hossain, R. Howard, P. Hüntemeyer, P. Igo-Kemenes, K. Ishii, F. R. Jacob, A. Jawahery, H. Jeremie, C. R. Jones, P. Jovanovic, T. R. Junk, N. Kanaya, J. Kanzaki, G. Karapetian, D. Karlen, V. Kartvelishvili, K. Kawagoe, T. Kawamoto, R. K. Keeler, R. G. Kellogg, B. W. Kennedy, D. H. Kim, J. Kirk, K. Klein, A. Klier, S. Kluth, T. Kobayashi, M. Kobel, T. P. Kokott, Sachio Komamiya, R. V. Kowalewski, T. Kress, P. Krieger, J. von Krogh, D. Krop, T. Kuhl, M. Kupper, P. Kyberd, G. D. Lafferty, R. Lahmann, W. P. Lai, H. Landsman, D. Lanske, J. Lauber, I. Lawson, J. G. Layter, A. M. Lee, A. Leins, D. Lellouch, J. Letts, L. Levinson, R. Liebisch, J. Lillich, C. Littlewood, A. W. Lloyd, S. L. Lloyd, F. K. Loebinger, G. D. Long, M. J. Losty, J. Lu, J. Ludwig, A. Macchiolo, A. Macpherson, W. Mader, M. Mannelli, S. Marcellini, T. E. Marchant, A. J. Martin, J. P. Martin, G. Martinez, T. Mashimo, P. Mättig, W. J. McDonald, J. McKenna, T. J. McMahon, R. A. McPherson, F. Meijers, P. Mendez-Lorenzo, W. Menges, S. Menke, F. S. Merritt, H. Mes, A. Michelini, S. Mihara, G. Mikenberg, D. J. Miller, W. Mohr, A. Montanari, T. Mori, U. Müller, K. Nagai, I. Nakamura, H. A. Neal, R. Nisius, S. W. O'Neale, F. G. Oakham, F. Odorici, A. Oh, A. Okpara, N. J. Oldershaw, M. J. Oreglia, S. Orito, F. Palmonari, G. Pásztor, J. R. Pater, G. N. Patrick, P. Pfeifenschneider, J. E. Pilcher, J. Pinfold, D. E. Plane, B. Poli, J. Polok, O. Pooth, M. Przybycień, A. Quadt, G. Quast, K. Rabbertz, B. Raith, C. Rembser, P. Renkel, H. Rick, N. Rodning, J. M. Roney, S. Rosati, K. Roscoe, A. M. Rossi, Y. Rozen, K. Runge, O. Runolfsson, D. R. Rust, K. Sachs, T. Saeki, O. Sahr, E. K.G. Sarkisyan, C. Sbarra, A. D. Schaile, O. Schaile, P. Scharff-Hansen, B. Schmitt, M. Schröder, M. Schumacher, C. Schwick, W. G. Scott, R. Seuster, T. G. Shears, B. C. Shen, C. H. Shepherd-Themistocleous, P. Sherwood, G. P. Siroli, A. Skuja, A. M. Smith, T. J. Smith, G. A. Snow, R. Sobie, S. Söldner-Rembold, S. Spagnolo, R. W. Springer, M. Sproston, A. Stahl, K. Stephens, K. Stoll, D. Strom, R. Ströhmer, L. Stumpf, B. Surrow, S. D. Talbot, S. Tarem, R. J. Taylor, R. Teuscher, M. Tecchio, J. Thomas, M. A. Thomson, S. Towers, D. Toya, T. Trefzger, I. Trigger, Z. Trócsányi, T. Tsukamoto, E. Tsur, M. F. Turner-Watson, I. Ueda, B. Vachon, P. Vannerem, M. Verzocchi, E. H. Vokurka, H. Voss, J. Vossebeld, A. Wagner, D. L. Wagner, D. Waller, C. P. Ward, D. R. Ward, P. M. Watkins, A. T. Watson, N. K. Watson, P. S. Wells, T. Wengler, N. Wermes, D. Wetterling, J. S. White, G. W. Wilson, J. A. Wilson, T. R. Wyatt, S. Yamashita, V. Zacek, D. Zer-Zion

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP 1 data sample comprising 161pb-1 of integrated luminosity and 4.5 × 106 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from γ/Z interference allows the parameters of the Z resonance to be determined in a model-independent way. Our results are in good agreement with lepton universality and consistent with the vector and axial-vector couplings predicted in the Standard Model. A fit to the complete dataset yields the fundamental Z resonance parameters: mz = (91.1852 ± 0.0030) GeV, Γz = (2.4948 ± 0.0041) GeV, σ0 h = (41.501 ± 0.055) nb, R = 20.823 ± 0.044, and A0,ℓ FB = 0.0145 ± 0.0017. Transforming these parameters gives a measurement of the ratio between the decay width into invisible particles and the width to a single species of charged lepton, Γinvℓℓ = 5.942 ± 0.027. Attributing the entire invisible width to neutrino decays and assuming the Standard Model couplings for neutrinos, this translates into a measurement of the effective number of light neutrino species, Nv = 2.984 ± 0.013. Interpreting the data within the context of the Standard Model allows the mass of the top quark, mt = (162+29 -16) GeV, to be determined through its influence on radiative corrections. Alternatively, utilising the direct external measurement of mt as an additional constraint leads to a measurement of the strong coupling constant and the mass of the Higgs boson: αs(mz) = 0.127 ± 0.005 and mH = (390+750 -280)GeV.

Original languageEnglish
Pages (from-to)587-651
Number of pages65
JournalEuropean Physical Journal C
Volume19
Issue number4
Publication statusPublished - 2001 Jan 1
Externally publishedYes

Fingerprint

neutrinos
leptons
decay
Bosons
Higgs bosons
Luminance
luminosity
asymmetry
quarks
Detectors
interference
collisions
detectors
cross sections

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Abbiendi, G., Ainsley, C., Åkesson, P. F., Alexander, G., Allison, J., Anagnostou, G., ... Zer-Zion, D. (2001). Precise determination of the Z resonance parameters at LEP: "Zedometry". European Physical Journal C, 19(4), 587-651.

Precise determination of the Z resonance parameters at LEP : "Zedometry". / Abbiendi, G.; Ainsley, C.; Åkesson, P. F.; Alexander, G.; Allison, J.; Anagnostou, G.; Anderson, K. J.; Arcelli, S.; Asai, S.; Ashby, S. F.; Axen, D.; Azuelos, G.; Bailey, I.; Ball, A. H.; Barberio, E.; Barlow, R. J.; Behnke, T.; Bell, K. W.; Bella, G.; Bellerive, A.; Benelli, G.; Bentvelsen, S.; Beeston, C.; Bethke, S.; Biebel, O.; Bloodworth, I. J.; Boeriu, O.; Bock, P.; Böhme, J.; Bonacorsi, D.; Boutemeur, M.; Braibant, S.; Bright-Thomas, P.; Brigliadori, L.; Brown, R. M.; Burckhart, H. J.; Cammin, J.; Capiluppi, P.; Carnegie, R. K.; Caron, B.; Carter, A. A.; Carter, J. R.; Chang, C. Y.; Charlton, D. G.; Clarke, P. E.L.; Clay, E.; Cohen, I.; Conboy, J. E.; Cooke, O. C.; Couchman, J.; Coxe, R. L.; Csilling, A.; Cuffiani, M.; Dado, S.; Dallavalle, G. M.; Dallison, S.; Darling, C.; de Roeck, A.; de Wolf, E. A.; Dervan, P.; Desch, K.; Dienes, B.; Dixit, M. S.; Donkers, M.; Dubbert, J.; Duchovni, E.; Duckeck, G.; Duerdoth, I. P.; Estabrooks, P. G.; Etzion, E.; Fabbri, F.; Fanti, M.; Feld, L.; Ferrari, P.; Fiedler, F.; Fleck, I.; Ford, M.; Foucher, M.; Frey, A.; Fürtjes, A.; Futyan, D. I.; Gagnon, P.; Gascon, J.; Gascon-Shotkin, S. M.; Gary, J. W.; Gaycken, G.; Geich-Gimbel, C.; Giacomelli, G.; Giacomelli, P.; Giacomelli, R.; Glenzinski, D.; Goldberg, J.; Grandi, C.; Graham, K.; Gross, E.; Grunhaus, J.; Gruwé, M.; Günther, P. O.; Hajdu, C.; Hanson, G. G.; Harder, K.; Harel, A.; Harin-Dirac, M.; Hart, P. A.; Hauschild, M.; Hawkes, C. M.; Hawkings, R.; Hemingway, R. J.; Hensel, C.; Herten, G.; Heuer, R. D.; Hildreth, M. D.; Hill, J. C.; Hillier, S. J.; Hocker, A.; Hoffman, K.; Homer, R. J.; Honma, A. K.; Horváth, D.; Hossain, K. R.; Howard, R.; Hüntemeyer, P.; Igo-Kemenes, P.; Ishii, K.; Jacob, F. R.; Jawahery, A.; Jeremie, H.; Jones, C. R.; Jovanovic, P.; Junk, T. R.; Kanaya, N.; Kanzaki, J.; Karapetian, G.; Karlen, D.; Kartvelishvili, V.; Kawagoe, K.; Kawamoto, T.; Keeler, R. K.; Kellogg, R. G.; Kennedy, B. W.; Kim, D. H.; Kirk, J.; Klein, K.; Klier, A.; Kluth, S.; Kobayashi, T.; Kobel, M.; Kokott, T. P.; Komamiya, Sachio; Kowalewski, R. V.; Kress, T.; Krieger, P.; von Krogh, J.; Krop, D.; Kuhl, T.; Kupper, M.; Kyberd, P.; Lafferty, G. D.; Lahmann, R.; Lai, W. P.; Landsman, H.; Lanske, D.; Lauber, J.; Lawson, I.; Layter, J. G.; Lee, A. M.; Leins, A.; Lellouch, D.; Letts, J.; Levinson, L.; Liebisch, R.; Lillich, J.; Littlewood, C.; Lloyd, A. W.; Lloyd, S. L.; Loebinger, F. K.; Long, G. D.; Losty, M. J.; Lu, J.; Ludwig, J.; Macchiolo, A.; Macpherson, A.; Mader, W.; Mannelli, M.; Marcellini, S.; Marchant, T. E.; Martin, A. J.; Martin, J. P.; Martinez, G.; Mashimo, T.; Mättig, P.; McDonald, W. J.; McKenna, J.; McMahon, T. J.; McPherson, R. A.; Meijers, F.; Mendez-Lorenzo, P.; Menges, W.; Menke, S.; Merritt, F. S.; Mes, H.; Michelini, A.; Mihara, S.; Mikenberg, G.; Miller, D. J.; Mohr, W.; Montanari, A.; Mori, T.; Müller, U.; Nagai, K.; Nakamura, I.; Neal, H. A.; Nisius, R.; O'Neale, S. W.; Oakham, F. G.; Odorici, F.; Oh, A.; Okpara, A.; Oldershaw, N. J.; Oreglia, M. J.; Orito, S.; Palmonari, F.; Pásztor, G.; Pater, J. R.; Patrick, G. N.; Pfeifenschneider, P.; Pilcher, J. E.; Pinfold, J.; Plane, D. E.; Poli, B.; Polok, J.; Pooth, O.; Przybycień, M.; Quadt, A.; Quast, G.; Rabbertz, K.; Raith, B.; Rembser, C.; Renkel, P.; Rick, H.; Rodning, N.; Roney, J. M.; Rosati, S.; Roscoe, K.; Rossi, A. M.; Rozen, Y.; Runge, K.; Runolfsson, O.; Rust, D. R.; Sachs, K.; Saeki, T.; Sahr, O.; Sarkisyan, E. K.G.; Sbarra, C.; Schaile, A. D.; Schaile, O.; Scharff-Hansen, P.; Schmitt, B.; Schröder, M.; Schumacher, M.; Schwick, C.; Scott, W. G.; Seuster, R.; Shears, T. G.; Shen, B. C.; Shepherd-Themistocleous, C. H.; Sherwood, P.; Siroli, G. P.; Skuja, A.; Smith, A. M.; Smith, T. J.; Snow, G. A.; Sobie, R.; Söldner-Rembold, S.; Spagnolo, S.; Springer, R. W.; Sproston, M.; Stahl, A.; Stephens, K.; Stoll, K.; Strom, D.; Ströhmer, R.; Stumpf, L.; Surrow, B.; Talbot, S. D.; Tarem, S.; Taylor, R. J.; Teuscher, R.; Tecchio, M.; Thomas, J.; Thomson, M. A.; Towers, S.; Toya, D.; Trefzger, T.; Trigger, I.; Trócsányi, Z.; Tsukamoto, T.; Tsur, E.; Turner-Watson, M. F.; Ueda, I.; Vachon, B.; Vannerem, P.; Verzocchi, M.; Vokurka, E. H.; Voss, H.; Vossebeld, J.; Wagner, A.; Wagner, D. L.; Waller, D.; Ward, C. P.; Ward, D. R.; Watkins, P. M.; Watson, A. T.; Watson, N. K.; Wells, P. S.; Wengler, T.; Wermes, N.; Wetterling, D.; White, J. S.; Wilson, G. W.; Wilson, J. A.; Wyatt, T. R.; Yamashita, S.; Zacek, V.; Zer-Zion, D.

In: European Physical Journal C, Vol. 19, No. 4, 01.01.2001, p. 587-651.

Research output: Contribution to journalArticle

Abbiendi, G, Ainsley, C, Åkesson, PF, Alexander, G, Allison, J, Anagnostou, G, Anderson, KJ, Arcelli, S, Asai, S, Ashby, SF, Axen, D, Azuelos, G, Bailey, I, Ball, AH, Barberio, E, Barlow, RJ, Behnke, T, Bell, KW, Bella, G, Bellerive, A, Benelli, G, Bentvelsen, S, Beeston, C, Bethke, S, Biebel, O, Bloodworth, IJ, Boeriu, O, Bock, P, Böhme, J, Bonacorsi, D, Boutemeur, M, Braibant, S, Bright-Thomas, P, Brigliadori, L, Brown, RM, Burckhart, HJ, Cammin, J, Capiluppi, P, Carnegie, RK, Caron, B, Carter, AA, Carter, JR, Chang, CY, Charlton, DG, Clarke, PEL, Clay, E, Cohen, I, Conboy, JE, Cooke, OC, Couchman, J, Coxe, RL, Csilling, A, Cuffiani, M, Dado, S, Dallavalle, GM, Dallison, S, Darling, C, de Roeck, A, de Wolf, EA, Dervan, P, Desch, K, Dienes, B, Dixit, MS, Donkers, M, Dubbert, J, Duchovni, E, Duckeck, G, Duerdoth, IP, Estabrooks, PG, Etzion, E, Fabbri, F, Fanti, M, Feld, L, Ferrari, P, Fiedler, F, Fleck, I, Ford, M, Foucher, M, Frey, A, Fürtjes, A, Futyan, DI, Gagnon, P, Gascon, J, Gascon-Shotkin, SM, Gary, JW, Gaycken, G, Geich-Gimbel, C, Giacomelli, G, Giacomelli, P, Giacomelli, R, Glenzinski, D, Goldberg, J, Grandi, C, Graham, K, Gross, E, Grunhaus, J, Gruwé, M, Günther, PO, Hajdu, C, Hanson, GG, Harder, K, Harel, A, Harin-Dirac, M, Hart, PA, Hauschild, M, Hawkes, CM, Hawkings, R, Hemingway, RJ, Hensel, C, Herten, G, Heuer, RD, Hildreth, MD, Hill, JC, Hillier, SJ, Hocker, A, Hoffman, K, Homer, RJ, Honma, AK, Horváth, D, Hossain, KR, Howard, R, Hüntemeyer, P, Igo-Kemenes, P, Ishii, K, Jacob, FR, Jawahery, A, Jeremie, H, Jones, CR, Jovanovic, P, Junk, TR, Kanaya, N, Kanzaki, J, Karapetian, G, Karlen, D, Kartvelishvili, V, Kawagoe, K, Kawamoto, T, Keeler, RK, Kellogg, RG, Kennedy, BW, Kim, DH, Kirk, J, Klein, K, Klier, A, Kluth, S, Kobayashi, T, Kobel, M, Kokott, TP, Komamiya, S, Kowalewski, RV, Kress, T, Krieger, P, von Krogh, J, Krop, D, Kuhl, T, Kupper, M, Kyberd, P, Lafferty, GD, Lahmann, R, Lai, WP, Landsman, H, Lanske, D, Lauber, J, Lawson, I, Layter, JG, Lee, AM, Leins, A, Lellouch, D, Letts, J, Levinson, L, Liebisch, R, Lillich, J, Littlewood, C, Lloyd, AW, Lloyd, SL, Loebinger, FK, Long, GD, Losty, MJ, Lu, J, Ludwig, J, Macchiolo, A, Macpherson, A, Mader, W, Mannelli, M, Marcellini, S, Marchant, TE, Martin, AJ, Martin, JP, Martinez, G, Mashimo, T, Mättig, P, McDonald, WJ, McKenna, J, McMahon, TJ, McPherson, RA, Meijers, F, Mendez-Lorenzo, P, Menges, W, Menke, S, Merritt, FS, Mes, H, Michelini, A, Mihara, S, Mikenberg, G, Miller, DJ, Mohr, W, Montanari, A, Mori, T, Müller, U, Nagai, K, Nakamura, I, Neal, HA, Nisius, R, O'Neale, SW, Oakham, FG, Odorici, F, Oh, A, Okpara, A, Oldershaw, NJ, Oreglia, MJ, Orito, S, Palmonari, F, Pásztor, G, Pater, JR, Patrick, GN, Pfeifenschneider, P, Pilcher, JE, Pinfold, J, Plane, DE, Poli, B, Polok, J, Pooth, O, Przybycień, M, Quadt, A, Quast, G, Rabbertz, K, Raith, B, Rembser, C, Renkel, P, Rick, H, Rodning, N, Roney, JM, Rosati, S, Roscoe, K, Rossi, AM, Rozen, Y, Runge, K, Runolfsson, O, Rust, DR, Sachs, K, Saeki, T, Sahr, O, Sarkisyan, EKG, Sbarra, C, Schaile, AD, Schaile, O, Scharff-Hansen, P, Schmitt, B, Schröder, M, Schumacher, M, Schwick, C, Scott, WG, Seuster, R, Shears, TG, Shen, BC, Shepherd-Themistocleous, CH, Sherwood, P, Siroli, GP, Skuja, A, Smith, AM, Smith, TJ, Snow, GA, Sobie, R, Söldner-Rembold, S, Spagnolo, S, Springer, RW, Sproston, M, Stahl, A, Stephens, K, Stoll, K, Strom, D, Ströhmer, R, Stumpf, L, Surrow, B, Talbot, SD, Tarem, S, Taylor, RJ, Teuscher, R, Tecchio, M, Thomas, J, Thomson, MA, Towers, S, Toya, D, Trefzger, T, Trigger, I, Trócsányi, Z, Tsukamoto, T, Tsur, E, Turner-Watson, MF, Ueda, I, Vachon, B, Vannerem, P, Verzocchi, M, Vokurka, EH, Voss, H, Vossebeld, J, Wagner, A, Wagner, DL, Waller, D, Ward, CP, Ward, DR, Watkins, PM, Watson, AT, Watson, NK, Wells, PS, Wengler, T, Wermes, N, Wetterling, D, White, JS, Wilson, GW, Wilson, JA, Wyatt, TR, Yamashita, S, Zacek, V & Zer-Zion, D 2001, 'Precise determination of the Z resonance parameters at LEP: "Zedometry"', European Physical Journal C, vol. 19, no. 4, pp. 587-651.
Abbiendi G, Ainsley C, Åkesson PF, Alexander G, Allison J, Anagnostou G et al. Precise determination of the Z resonance parameters at LEP: "Zedometry". European Physical Journal C. 2001 Jan 1;19(4):587-651.
Abbiendi, G. ; Ainsley, C. ; Åkesson, P. F. ; Alexander, G. ; Allison, J. ; Anagnostou, G. ; Anderson, K. J. ; Arcelli, S. ; Asai, S. ; Ashby, S. F. ; Axen, D. ; Azuelos, G. ; Bailey, I. ; Ball, A. H. ; Barberio, E. ; Barlow, R. J. ; Behnke, T. ; Bell, K. W. ; Bella, G. ; Bellerive, A. ; Benelli, G. ; Bentvelsen, S. ; Beeston, C. ; Bethke, S. ; Biebel, O. ; Bloodworth, I. J. ; Boeriu, O. ; Bock, P. ; Böhme, J. ; Bonacorsi, D. ; Boutemeur, M. ; Braibant, S. ; Bright-Thomas, P. ; Brigliadori, L. ; Brown, R. M. ; Burckhart, H. J. ; Cammin, J. ; Capiluppi, P. ; Carnegie, R. K. ; Caron, B. ; Carter, A. A. ; Carter, J. R. ; Chang, C. Y. ; Charlton, D. G. ; Clarke, P. E.L. ; Clay, E. ; Cohen, I. ; Conboy, J. E. ; Cooke, O. C. ; Couchman, J. ; Coxe, R. L. ; Csilling, A. ; Cuffiani, M. ; Dado, S. ; Dallavalle, G. M. ; Dallison, S. ; Darling, C. ; de Roeck, A. ; de Wolf, E. A. ; Dervan, P. ; Desch, K. ; Dienes, B. ; Dixit, M. S. ; Donkers, M. ; Dubbert, J. ; Duchovni, E. ; Duckeck, G. ; Duerdoth, I. P. ; Estabrooks, P. G. ; Etzion, E. ; Fabbri, F. ; Fanti, M. ; Feld, L. ; Ferrari, P. ; Fiedler, F. ; Fleck, I. ; Ford, M. ; Foucher, M. ; Frey, A. ; Fürtjes, A. ; Futyan, D. I. ; Gagnon, P. ; Gascon, J. ; Gascon-Shotkin, S. M. ; Gary, J. W. ; Gaycken, G. ; Geich-Gimbel, C. ; Giacomelli, G. ; Giacomelli, P. ; Giacomelli, R. ; Glenzinski, D. ; Goldberg, J. ; Grandi, C. ; Graham, K. ; Gross, E. ; Grunhaus, J. ; Gruwé, M. ; Günther, P. O. ; Hajdu, C. ; Hanson, G. G. ; Harder, K. ; Harel, A. ; Harin-Dirac, M. ; Hart, P. A. ; Hauschild, M. ; Hawkes, C. M. ; Hawkings, R. ; Hemingway, R. J. ; Hensel, C. ; Herten, G. ; Heuer, R. D. ; Hildreth, M. D. ; Hill, J. C. ; Hillier, S. J. ; Hocker, A. ; Hoffman, K. ; Homer, R. J. ; Honma, A. K. ; Horváth, D. ; Hossain, K. R. ; Howard, R. ; Hüntemeyer, P. ; Igo-Kemenes, P. ; Ishii, K. ; Jacob, F. R. ; Jawahery, A. ; Jeremie, H. ; Jones, C. R. ; Jovanovic, P. ; Junk, T. R. ; Kanaya, N. ; Kanzaki, J. ; Karapetian, G. ; Karlen, D. ; Kartvelishvili, V. ; Kawagoe, K. ; Kawamoto, T. ; Keeler, R. K. ; Kellogg, R. G. ; Kennedy, B. W. ; Kim, D. H. ; Kirk, J. ; Klein, K. ; Klier, A. ; Kluth, S. ; Kobayashi, T. ; Kobel, M. ; Kokott, T. P. ; Komamiya, Sachio ; Kowalewski, R. V. ; Kress, T. ; Krieger, P. ; von Krogh, J. ; Krop, D. ; Kuhl, T. ; Kupper, M. ; Kyberd, P. ; Lafferty, G. D. ; Lahmann, R. ; Lai, W. P. ; Landsman, H. ; Lanske, D. ; Lauber, J. ; Lawson, I. ; Layter, J. G. ; Lee, A. M. ; Leins, A. ; Lellouch, D. ; Letts, J. ; Levinson, L. ; Liebisch, R. ; Lillich, J. ; Littlewood, C. ; Lloyd, A. W. ; Lloyd, S. L. ; Loebinger, F. K. ; Long, G. D. ; Losty, M. J. ; Lu, J. ; Ludwig, J. ; Macchiolo, A. ; Macpherson, A. ; Mader, W. ; Mannelli, M. ; Marcellini, S. ; Marchant, T. E. ; Martin, A. J. ; Martin, J. P. ; Martinez, G. ; Mashimo, T. ; Mättig, P. ; McDonald, W. J. ; McKenna, J. ; McMahon, T. J. ; McPherson, R. A. ; Meijers, F. ; Mendez-Lorenzo, P. ; Menges, W. ; Menke, S. ; Merritt, F. S. ; Mes, H. ; Michelini, A. ; Mihara, S. ; Mikenberg, G. ; Miller, D. J. ; Mohr, W. ; Montanari, A. ; Mori, T. ; Müller, U. ; Nagai, K. ; Nakamura, I. ; Neal, H. A. ; Nisius, R. ; O'Neale, S. W. ; Oakham, F. G. ; Odorici, F. ; Oh, A. ; Okpara, A. ; Oldershaw, N. J. ; Oreglia, M. J. ; Orito, S. ; Palmonari, F. ; Pásztor, G. ; Pater, J. R. ; Patrick, G. N. ; Pfeifenschneider, P. ; Pilcher, J. E. ; Pinfold, J. ; Plane, D. E. ; Poli, B. ; Polok, J. ; Pooth, O. ; Przybycień, M. ; Quadt, A. ; Quast, G. ; Rabbertz, K. ; Raith, B. ; Rembser, C. ; Renkel, P. ; Rick, H. ; Rodning, N. ; Roney, J. M. ; Rosati, S. ; Roscoe, K. ; Rossi, A. M. ; Rozen, Y. ; Runge, K. ; Runolfsson, O. ; Rust, D. R. ; Sachs, K. ; Saeki, T. ; Sahr, O. ; Sarkisyan, E. K.G. ; Sbarra, C. ; Schaile, A. D. ; Schaile, O. ; Scharff-Hansen, P. ; Schmitt, B. ; Schröder, M. ; Schumacher, M. ; Schwick, C. ; Scott, W. G. ; Seuster, R. ; Shears, T. G. ; Shen, B. C. ; Shepherd-Themistocleous, C. H. ; Sherwood, P. ; Siroli, G. P. ; Skuja, A. ; Smith, A. M. ; Smith, T. J. ; Snow, G. A. ; Sobie, R. ; Söldner-Rembold, S. ; Spagnolo, S. ; Springer, R. W. ; Sproston, M. ; Stahl, A. ; Stephens, K. ; Stoll, K. ; Strom, D. ; Ströhmer, R. ; Stumpf, L. ; Surrow, B. ; Talbot, S. D. ; Tarem, S. ; Taylor, R. J. ; Teuscher, R. ; Tecchio, M. ; Thomas, J. ; Thomson, M. A. ; Towers, S. ; Toya, D. ; Trefzger, T. ; Trigger, I. ; Trócsányi, Z. ; Tsukamoto, T. ; Tsur, E. ; Turner-Watson, M. F. ; Ueda, I. ; Vachon, B. ; Vannerem, P. ; Verzocchi, M. ; Vokurka, E. H. ; Voss, H. ; Vossebeld, J. ; Wagner, A. ; Wagner, D. L. ; Waller, D. ; Ward, C. P. ; Ward, D. R. ; Watkins, P. M. ; Watson, A. T. ; Watson, N. K. ; Wells, P. S. ; Wengler, T. ; Wermes, N. ; Wetterling, D. ; White, J. S. ; Wilson, G. W. ; Wilson, J. A. ; Wyatt, T. R. ; Yamashita, S. ; Zacek, V. ; Zer-Zion, D. / Precise determination of the Z resonance parameters at LEP : "Zedometry". In: European Physical Journal C. 2001 ; Vol. 19, No. 4. pp. 587-651.
@article{08857043c8b7447a9d1042dbc7c3a1ac,
title = "Precise determination of the Z resonance parameters at LEP: {"}Zedometry{"}",
abstract = "This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP 1 data sample comprising 161pb-1 of integrated luminosity and 4.5 × 106 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from γ/Z interference allows the parameters of the Z resonance to be determined in a model-independent way. Our results are in good agreement with lepton universality and consistent with the vector and axial-vector couplings predicted in the Standard Model. A fit to the complete dataset yields the fundamental Z resonance parameters: mz = (91.1852 ± 0.0030) GeV, Γz = (2.4948 ± 0.0041) GeV, σ0 h = (41.501 ± 0.055) nb, Rℓ = 20.823 ± 0.044, and A0,ℓ FB = 0.0145 ± 0.0017. Transforming these parameters gives a measurement of the ratio between the decay width into invisible particles and the width to a single species of charged lepton, Γinv/Γℓℓ = 5.942 ± 0.027. Attributing the entire invisible width to neutrino decays and assuming the Standard Model couplings for neutrinos, this translates into a measurement of the effective number of light neutrino species, Nv = 2.984 ± 0.013. Interpreting the data within the context of the Standard Model allows the mass of the top quark, mt = (162+29 -16) GeV, to be determined through its influence on radiative corrections. Alternatively, utilising the direct external measurement of mt as an additional constraint leads to a measurement of the strong coupling constant and the mass of the Higgs boson: αs(mz) = 0.127 ± 0.005 and mH = (390+750 -280)GeV.",
author = "G. Abbiendi and C. Ainsley and {\AA}kesson, {P. F.} and G. Alexander and J. Allison and G. Anagnostou and Anderson, {K. J.} and S. Arcelli and S. Asai and Ashby, {S. F.} and D. Axen and G. Azuelos and I. Bailey and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and T. Behnke and Bell, {K. W.} and G. Bella and A. Bellerive and G. Benelli and S. Bentvelsen and C. Beeston and S. Bethke and O. Biebel and Bloodworth, {I. J.} and O. Boeriu and P. Bock and J. B{\"o}hme and D. Bonacorsi and M. Boutemeur and S. Braibant and P. Bright-Thomas and L. Brigliadori and Brown, {R. M.} and Burckhart, {H. J.} and J. Cammin and P. Capiluppi and Carnegie, {R. K.} and B. Caron and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and Clarke, {P. E.L.} and E. Clay and I. Cohen and Conboy, {J. E.} and Cooke, {O. C.} and J. Couchman and Coxe, {R. L.} and A. Csilling and M. Cuffiani and S. Dado and Dallavalle, {G. M.} and S. Dallison and C. Darling and {de Roeck}, A. and {de Wolf}, {E. A.} and P. Dervan and K. Desch and B. Dienes and Dixit, {M. S.} and M. Donkers and J. Dubbert and E. Duchovni and G. Duckeck and Duerdoth, {I. P.} and Estabrooks, {P. G.} and E. Etzion and F. Fabbri and M. Fanti and L. Feld and P. Ferrari and F. Fiedler and I. Fleck and M. Ford and M. Foucher and A. Frey and A. F{\"u}rtjes and Futyan, {D. I.} and P. Gagnon and J. Gascon and Gascon-Shotkin, {S. M.} and Gary, {J. W.} and G. Gaycken and C. Geich-Gimbel and G. Giacomelli and P. Giacomelli and R. Giacomelli and D. Glenzinski and J. Goldberg and C. Grandi and K. Graham and E. Gross and J. Grunhaus and M. Gruw{\'e} and G{\"u}nther, {P. O.} and C. Hajdu and Hanson, {G. G.} and K. Harder and A. Harel and M. Harin-Dirac and Hart, {P. A.} and M. Hauschild and Hawkes, {C. M.} and R. Hawkings and Hemingway, {R. J.} and C. Hensel and G. Herten and Heuer, {R. D.} and Hildreth, {M. D.} and Hill, {J. C.} and Hillier, {S. J.} and A. Hocker and K. Hoffman and Homer, {R. J.} and Honma, {A. K.} and D. Horv{\'a}th and Hossain, {K. R.} and R. Howard and P. H{\"u}ntemeyer and P. Igo-Kemenes and K. Ishii and Jacob, {F. R.} and A. Jawahery and H. Jeremie and Jones, {C. R.} and P. Jovanovic and Junk, {T. R.} and N. Kanaya and J. Kanzaki and G. Karapetian 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 Kim, {D. H.} and J. Kirk and K. Klein and A. Klier and S. Kluth and T. Kobayashi and M. Kobel and Kokott, {T. P.} and Sachio Komamiya and Kowalewski, {R. V.} and T. Kress and P. Krieger and {von Krogh}, J. and D. Krop and T. Kuhl and M. Kupper and P. Kyberd and Lafferty, {G. D.} and R. Lahmann and Lai, {W. P.} and H. Landsman and D. Lanske and J. Lauber and I. Lawson and Layter, {J. G.} and Lee, {A. M.} and A. Leins and D. Lellouch and J. Letts and L. Levinson and R. Liebisch and J. Lillich and C. Littlewood and Lloyd, {A. W.} and Lloyd, {S. L.} and Loebinger, {F. K.} and Long, {G. D.} and Losty, {M. J.} and J. Lu and J. Ludwig and A. Macchiolo and A. Macpherson and W. Mader and M. Mannelli and S. Marcellini and Marchant, {T. E.} 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 McMahon, {T. J.} and McPherson, {R. A.} and F. Meijers and P. Mendez-Lorenzo and W. Menges and S. Menke and Merritt, {F. S.} and H. Mes and A. Michelini and S. Mihara and G. Mikenberg and Miller, {D. J.} and W. Mohr and A. Montanari and T. Mori and U. M{\"u}ller and K. Nagai and I. Nakamura and Neal, {H. A.} and R. Nisius and O'Neale, {S. W.} and Oakham, {F. G.} and F. Odorici and A. Oh and A. Okpara and Oldershaw, {N. J.} and Oreglia, {M. J.} and S. Orito and F. Palmonari and G. P{\'a}sztor and Pater, {J. R.} and Patrick, {G. N.} and P. Pfeifenschneider and Pilcher, {J. E.} and J. Pinfold and Plane, {D. E.} and B. Poli and J. Polok and O. Pooth and M. Przybycień and A. Quadt and G. Quast and K. Rabbertz and B. Raith and C. Rembser and P. Renkel and H. Rick and N. Rodning and Roney, {J. M.} and S. Rosati and K. Roscoe and Rossi, {A. M.} and Y. Rozen and K. Runge and O. Runolfsson and Rust, {D. R.} and K. Sachs and T. Saeki and O. Sahr and Sarkisyan, {E. K.G.} and C. Sbarra and Schaile, {A. D.} and O. Schaile and P. Scharff-Hansen and B. Schmitt and M. Schr{\"o}der and M. Schumacher and C. Schwick and Scott, {W. G.} and R. Seuster and Shears, {T. G.} and Shen, {B. C.} and Shepherd-Themistocleous, {C. H.} and P. Sherwood and Siroli, {G. P.} and A. Skuja and Smith, {A. M.} and Smith, {T. J.} and Snow, {G. A.} and R. Sobie and S. S{\"o}ldner-Rembold and S. Spagnolo and Springer, {R. W.} and M. Sproston and A. Stahl and K. Stephens and K. Stoll and D. Strom and R. Str{\"o}hmer and L. Stumpf and B. Surrow and Talbot, {S. D.} and S. Tarem and Taylor, {R. J.} and R. Teuscher and M. Tecchio and J. Thomas and Thomson, {M. A.} and S. Towers and D. Toya and T. Trefzger and I. Trigger and Z. Tr{\'o}cs{\'a}nyi and T. Tsukamoto and E. Tsur and Turner-Watson, {M. F.} and I. Ueda and B. Vachon and P. Vannerem and M. Verzocchi and Vokurka, {E. H.} and H. Voss and J. Vossebeld and A. Wagner and Wagner, {D. L.} and D. Waller 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 T. Wengler and N. Wermes and D. Wetterling and White, {J. S.} and Wilson, {G. W.} and Wilson, {J. A.} and Wyatt, {T. R.} and S. Yamashita and V. Zacek and D. Zer-Zion",
year = "2001",
month = "1",
day = "1",
language = "English",
volume = "19",
pages = "587--651",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Precise determination of the Z resonance parameters at LEP

T2 - "Zedometry"

AU - Abbiendi, G.

AU - Ainsley, C.

AU - Åkesson, P. F.

AU - Alexander, G.

AU - Allison, J.

AU - Anagnostou, G.

AU - Anderson, K. J.

AU - Arcelli, S.

AU - Asai, S.

AU - Ashby, S. F.

AU - Axen, D.

AU - Azuelos, G.

AU - Bailey, I.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bellerive, A.

AU - Benelli, G.

AU - Bentvelsen, S.

AU - Beeston, C.

AU - Bethke, S.

AU - Biebel, O.

AU - Bloodworth, I. J.

AU - Boeriu, O.

AU - Bock, P.

AU - Böhme, J.

AU - Bonacorsi, D.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brigliadori, L.

AU - Brown, R. M.

AU - Burckhart, H. J.

AU - Cammin, J.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Caron, B.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Clarke, P. E.L.

AU - Clay, E.

AU - Cohen, I.

AU - Conboy, J. E.

AU - Cooke, O. C.

AU - Couchman, J.

AU - Coxe, R. L.

AU - Csilling, A.

AU - Cuffiani, M.

AU - Dado, S.

AU - Dallavalle, G. M.

AU - Dallison, S.

AU - Darling, C.

AU - de Roeck, A.

AU - de Wolf, E. A.

AU - Dervan, P.

AU - Desch, K.

AU - Dienes, B.

AU - Dixit, M. S.

AU - Donkers, M.

AU - Dubbert, J.

AU - Duchovni, E.

AU - Duckeck, G.

AU - Duerdoth, I. P.

AU - Estabrooks, P. G.

AU - Etzion, E.

AU - Fabbri, F.

AU - Fanti, M.

AU - Feld, L.

AU - Ferrari, P.

AU - Fiedler, F.

AU - Fleck, I.

AU - Ford, M.

AU - Foucher, M.

AU - Frey, A.

AU - Fürtjes, A.

AU - Futyan, D. I.

AU - Gagnon, P.

AU - Gascon, J.

AU - Gascon-Shotkin, S. M.

AU - Gary, J. W.

AU - Gaycken, G.

AU - Geich-Gimbel, C.

AU - Giacomelli, G.

AU - Giacomelli, P.

AU - Giacomelli, R.

AU - Glenzinski, D.

AU - Goldberg, J.

AU - Grandi, C.

AU - Graham, K.

AU - Gross, E.

AU - Grunhaus, J.

AU - Gruwé, M.

AU - Günther, P. O.

AU - Hajdu, C.

AU - Hanson, G. G.

AU - Harder, K.

AU - Harel, A.

AU - Harin-Dirac, M.

AU - Hart, P. A.

AU - Hauschild, M.

AU - Hawkes, C. M.

AU - Hawkings, R.

AU - Hemingway, R. J.

AU - Hensel, C.

AU - Herten, G.

AU - Heuer, R. D.

AU - Hildreth, M. D.

AU - Hill, J. C.

AU - Hillier, S. J.

AU - Hocker, A.

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PY - 2001/1/1

Y1 - 2001/1/1

N2 - This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP 1 data sample comprising 161pb-1 of integrated luminosity and 4.5 × 106 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from γ/Z interference allows the parameters of the Z resonance to be determined in a model-independent way. Our results are in good agreement with lepton universality and consistent with the vector and axial-vector couplings predicted in the Standard Model. A fit to the complete dataset yields the fundamental Z resonance parameters: mz = (91.1852 ± 0.0030) GeV, Γz = (2.4948 ± 0.0041) GeV, σ0 h = (41.501 ± 0.055) nb, Rℓ = 20.823 ± 0.044, and A0,ℓ FB = 0.0145 ± 0.0017. Transforming these parameters gives a measurement of the ratio between the decay width into invisible particles and the width to a single species of charged lepton, Γinv/Γℓℓ = 5.942 ± 0.027. Attributing the entire invisible width to neutrino decays and assuming the Standard Model couplings for neutrinos, this translates into a measurement of the effective number of light neutrino species, Nv = 2.984 ± 0.013. Interpreting the data within the context of the Standard Model allows the mass of the top quark, mt = (162+29 -16) GeV, to be determined through its influence on radiative corrections. Alternatively, utilising the direct external measurement of mt as an additional constraint leads to a measurement of the strong coupling constant and the mass of the Higgs boson: αs(mz) = 0.127 ± 0.005 and mH = (390+750 -280)GeV.

AB - This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP 1 data sample comprising 161pb-1 of integrated luminosity and 4.5 × 106 selected Z decays. An interpretation of the data in terms of contributions from pure Z exchange and from γ/Z interference allows the parameters of the Z resonance to be determined in a model-independent way. Our results are in good agreement with lepton universality and consistent with the vector and axial-vector couplings predicted in the Standard Model. A fit to the complete dataset yields the fundamental Z resonance parameters: mz = (91.1852 ± 0.0030) GeV, Γz = (2.4948 ± 0.0041) GeV, σ0 h = (41.501 ± 0.055) nb, Rℓ = 20.823 ± 0.044, and A0,ℓ FB = 0.0145 ± 0.0017. Transforming these parameters gives a measurement of the ratio between the decay width into invisible particles and the width to a single species of charged lepton, Γinv/Γℓℓ = 5.942 ± 0.027. Attributing the entire invisible width to neutrino decays and assuming the Standard Model couplings for neutrinos, this translates into a measurement of the effective number of light neutrino species, Nv = 2.984 ± 0.013. Interpreting the data within the context of the Standard Model allows the mass of the top quark, mt = (162+29 -16) GeV, to be determined through its influence on radiative corrections. Alternatively, utilising the direct external measurement of mt as an additional constraint leads to a measurement of the strong coupling constant and the mass of the Higgs boson: αs(mz) = 0.127 ± 0.005 and mH = (390+750 -280)GeV.

UR - http://www.scopus.com/inward/record.url?scp=0346607232&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0346607232&partnerID=8YFLogxK

M3 - Article

VL - 19

SP - 587

EP - 651

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 4

ER -