A measurement of the b-quark mass from hadronic Z decays

R. Barate; D. Decamp; P. Ghez; C. Goy; J. P. Lees; E. Merle; M. N. Minard; B. Pietrzyk; S. Bravo; M. P. Casado; M. Chmeissani; J. M. Crespo; E. Fernandez; M. Fernandez-Bosman; L. Garrido; E. Graugés; M. Martinez; G. Merino; R. Miquel; L. M. Mir; A. Pacheco; H. Ruiz; A. Colaleo; D. Creanza; M. de Palma; G. Iaselli; G. Maggi; M. Maggi; S. Nuzzo; A. Ranieri; G. Raso; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; A. Tricomi; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; D. Abbaneo; G. Boix; O. Buchmüller; M. Cattaneo; F. Cerutti; G. Dissertori; H. Drevermann; R. W. Forty; M. Frank; T. C. Greening; A. W. Halley; J. B. Hansen; J. Harvey; P. Janot; B. Jost; I. Lehraus; P. Mato; A. Minten; A. Moutoussi; F. Ranjard; L. Rolandi; D. Schlatter; M. Schmitt; O. Schneider; P. Spagnolo; W. Tejessy; F. Teubert; E. Tournefier; A. E. Wright; Z. Ajaltouni; F. Badaud; G. Chazelle; O. Deschamps; A. Falvard; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; S. Monteil; J. C. Montret; D. Pallin; P. Perret; F. Podlyski; J. D. Hansen; J. R. Hansen; P. H. Hansen; B. S. Nilsson; A. Wäänänen; G. Daskalakis; A. Kyriakis; C. Markou; E. Simopoulou; A. Vayaki; A. Blondel; G. Bonneaud; J. C. Brient; A. Rougé; M. Rumpf; M. Swynghedauw; M. Verderi; H. Videau; E. Focardi; G. Parrini; K. Zachariadou; A. Antonelli; M. Antonelli; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; V. Chiarella; P. Laurelli; G. Mannocchi; F. Murtas; G. P. Murtas; L. Passalacqua; M. Pepe-Altarelli; J. G. Lynch; P. Negus; V. O'Shea; C. Raine; P. Teixeira-Dias; A. S. Thompson; R. Cavanaugh; S. Dhamotharan; C. Geweniger; P. Hanke; G. Hansper; V. Hepp; E. E. Kluge; A. Putzer; J. Sommer; K. Tittel; S. Werner; M. Wunsch; R. Beuselinck; D. M. Binnie; W. Cameron; P. J. Dornan; M. Girone; N. Marinelli; J. K. Sedgbeer; J. C. Thompson; E. Thomson; V. M. Ghete; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C. K. Bowdery; P. G. Buck; A. J. Finch; F. Foster; G. Hughes; R. W.L. Jones; N. A. Robertson; I. Giehl; K. Jakobs; K. Kleinknecht; G. Quast; B. Renk; E. Rohne; H. G. Sander; H. Wachsmuth; C. Zeitnitz; A. Bonissent; J. Carr; P. Coyle; O. Leroy; P. Payre; D. Rousseau; M. Talby; M. Aleppo; F. Ragusa; H. Dietl; G. Ganis; A. Heister; K. Hüttmann; G. Lütjens; C. Mannert; W. Männer; H. G. Moser; S. Schael; R. Settles; H. Stenzel; W. Wiedenmann; G. Wolf; P. Azzurri; J. Boucrot; O. Callot; S. Chen; A. Cordier; M. Davier; L. Duflot; J. F. Grivaz; P. Heusse; A. Jacholkowska; F. Le Diberder; J. Lefrançois; A. M. Lutz; M. H. Schune; J. J. Veillet; I. Videau; D. Zerwas; G. Bagliesi; T. Boccali; G. Calderini; V. Ciulli; L. Foà; A. Giassi; F. Ligabue; A. Messineo; F. Palla; G. Rizzo; G. Sanguinetti; A. Sciabà; G. Sguazzoni; R. Tenchini; A. Venturi; P. G. Verdini; G. A. Blair; G. Cowan; M. G. Green; T. Medcalf; J. A. Strong; J. H. von Wimmersperg-Toeller; R. W. Clifft; T. R. Edgecock; P. R. Norton; I. R. Tomalin; B. Bloch-Devaux; P. Colas; S. Emery; W. Kozanecki; E. Lançon; M. C. Lemaire; E. Locci; P. Perez; J. Rander; J. F. Renardy; A. Roussarie; J. P. Schuller; J. Schwindling; A. Trabelsi; B. Vallage; S. N. Black; J. H. Dann; R. P. Johnson; H. Y. Kim; N. Konstantinidis; A. M. Litke; M. A. McNeil; G. Taylor; C. N. Booth; S. Cartwright; F. Combley; M. Lehto; L. F. Thompson; K. Affholderbach; A. Böhrer; S. Brandt; C. Grupen; A. Misiejuk; G. Prange; U. Sieler; G. Giannini; B. Gobbo; J. Rothberg; S. Wasserbaech; S. R. Armstrong; K. Cranmer; P. Elmer; D. P.S. Ferguson; Y. Gao; S. González; O. J. Hayes; H. Hu; S. Jin; J. Kile; P. A. McNamara; J. Nielsen; W. Orejudos; Y. B. Pan; Y. Saadi; I. J. Scott; J. Walsh; S. L. Wu; X. Wu; G. Zobernig

doi:10.1007/s100520000533

A measurement of the b-quark mass from hadronic Z decays

R. Barate, D. Decamp, P. Ghez, C. Goy, J. P. Lees, E. Merle, M. N. Minard, B. Pietrzyk, S. Bravo, M. P. Casado, M. Chmeissani, J. M. Crespo, E. Fernandez, M. Fernandez-Bosman, L. Garrido, E. Graugés, M. Martinez, G. Merino, R. Miquel, L. M. MirA. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, M. de Palma, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, G. Boix, O. Buchmüller, M. Cattaneo, F. Cerutti, G. Dissertori, H. Drevermann, R. W. Forty, M. Frank, T. C. Greening, A. W. Halley, J. B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, M. Schmitt, O. Schneider, P. Spagnolo, W. Tejessy, F. Teubert, E. Tournefier, A. E. Wright, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. D. Hansen, J. R. Hansen, P. H. Hansen, B. S. Nilsson, A. Wäänänen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, A. Blondel, G. Bonneaud, J. C. Brient, A. Rougé, M. Rumpf, M. Swynghedauw, M. Verderi, H. Videau, E. Focardi, G. Parrini, K. Zachariadou, A. Antonelli, M. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe-Altarelli, J. G. Lynch, P. Negus, V. O'Shea, C. Raine, P. Teixeira-Dias, A. S. Thompson, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, G. Hansper, V. Hepp, E. E. Kluge, A. Putzer, J. Sommer, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, P. J. Dornan, M. Girone, N. Marinelli, J. K. Sedgbeer, J. C. Thompson, E. Thomson, V. M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. K. Bowdery, P. G. Buck, A. J. Finch, F. Foster, G. Hughes, R. W.L. Jones, N. A. Robertson, I. Giehl, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, E. Rohne, H. G. Sander, H. Wachsmuth, C. Zeitnitz, A. Bonissent, J. Carr, P. Coyle, O. Leroy, P. Payre, D. Rousseau, M. Talby, M. Aleppo, F. Ragusa, H. Dietl, G. Ganis, A. Heister, K. Hüttmann, G. Lütjens, C. Mannert, W. Männer, H. G. Moser, S. Schael, R. Settles, H. Stenzel, W. Wiedenmann, G. Wolf, P. Azzurri, J. Boucrot, O. Callot, S. Chen, A. Cordier, M. Davier, L. Duflot, J. F. Grivaz, P. Heusse, A. Jacholkowska, F. Le Diberder, J. Lefrançois, A. M. Lutz, M. H. Schune, J. J. Veillet, I. Videau, D. Zerwas, G. Bagliesi, T. Boccali, G. Calderini, V. Ciulli, L. Foà, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, A. Sciabà, G. Sguazzoni, R. Tenchini, A. Venturi, P. G. Verdini, G. A. Blair, G. Cowan, M. G. Green, T. Medcalf, J. A. Strong, J. H. von Wimmersperg-Toeller, R. W. Clifft, T. R. Edgecock, P. R. Norton, I. R. Tomalin, B. Bloch-Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, P. Perez, J. Rander, J. F. Renardy, A. Roussarie, J. P. Schuller, J. Schwindling, A. Trabelsi, B. Vallage, S. N. Black, J. H. Dann, R. P. Johnson, H. Y. Kim, N. Konstantinidis, A. M. Litke, M. A. McNeil, G. Taylor, C. N. Booth, S. Cartwright, F. Combley, M. Lehto, L. F. Thompson, K. Affholderbach, A. Böhrer, S. Brandt, C. Grupen, A. Misiejuk, G. Prange, U. Sieler, G. Giannini, B. Gobbo, J. Rothberg, S. Wasserbaech, S. R. Armstrong, K. Cranmer, P. Elmer, D. P.S. Ferguson, Y. Gao, S. González, O. J. Hayes, H. Hu, S. Jin, J. Kile, P. A. McNamara, J. Nielsen, W. Orejudos, Y. B. Pan, Y. Saadi, I. J. Scott, J. Walsh, S. L. Wu, X. Wu, G. Zobernig

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

Abstract

Hadronic Z decay data taken with the ALEPH detector at LEP1 are used to measure the three-jet rate as well as moments of various event-shape variables. The ratios of the observables obtained from b-tagged events and from an inclusive sample are determined. The mass of the b quark is extracted from a fit to the measured ratios using a next-to-leading order prediction including mass effects. Taking the first moment of the y₃ distribution, which is the observable with the smallest hadronization corrections and systematic uncertainties, the result is m_b(M_Z) = [3.27 ± 0.22(stat) ± 0.22(exp) ± 0.38(had) ± 0.16(theo)] GeV/c². The measured ratio is alternatively employed to test the flavour independence of the strong coupling constant for b and light quarks.

Original language	English (US)
Pages (from-to)	1-13
Number of pages	13
Journal	European Physical Journal C
Volume	18
Issue number	1
DOIs	https://doi.org/10.1007/s100520000533
State	Published - 2000

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

Access to Document

10.1007/s100520000533

Cite this

Barate, R., Decamp, D., Ghez, P., Goy, C., Lees, J. P., Merle, E., Minard, M. N., Pietrzyk, B., Bravo, S., Casado, M. P., Chmeissani, M., Crespo, J. M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Graugés, E., Martinez, M., Merino, G., Miquel, R., ... Zobernig, G. (2000). A measurement of the b-quark mass from hadronic Z decays. European Physical Journal C, 18(1), 1-13. https://doi.org/10.1007/s100520000533

Barate, R, Decamp, D, Ghez, P, Goy, C, Lees, JP, Merle, E, Minard, MN, Pietrzyk, B, Bravo, S, Casado, MP, Chmeissani, M, Crespo, JM, Fernandez, E, Fernandez-Bosman, M, Garrido, L, Graugés, E, Martinez, M, Merino, G, Miquel, R, Mir, LM, Pacheco, A, Ruiz, H, Colaleo, A, Creanza, D, de Palma, M, Iaselli, G, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Boix, G, Buchmüller, O, Cattaneo, M, Cerutti, F, Dissertori, G, Drevermann, H, Forty, RW, Frank, M, Greening, TC, Halley, AW, Hansen, JB, Harvey, J, Janot, P, Jost, B, Lehraus, I, Mato, P, Minten, A, Moutoussi, A, Ranjard, F, Rolandi, L, Schlatter, D, Schmitt, M, Schneider, O, Spagnolo, P, Tejessy, W, Teubert, F, Tournefier, E, Wright, AE, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, JC, Pallin, D, Perret, P, Podlyski, F, Hansen, JD, Hansen, JR, Hansen, PH, Nilsson, BS, Wäänänen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Vayaki, A, Blondel, A, Bonneaud, G, Brient, JC, Rougé, A, Rumpf, M, Swynghedauw, M, Verderi, M, Videau, H, Focardi, E, Parrini, G, Zachariadou, K, Antonelli, A, Antonelli, M, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Passalacqua, L, Pepe-Altarelli, M, Lynch, JG, Negus, P, O'Shea, V, Raine, C, Teixeira-Dias, P, Thompson, AS, Cavanaugh, R, Dhamotharan, S, Geweniger, C, Hanke, P, Hansper, G, Hepp, V, Kluge, EE, Putzer, A, Sommer, J, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, DM, Cameron, W, Dornan, PJ, Girone, M, Marinelli, N, Sedgbeer, JK, Thompson, JC, Thomson, E, Ghete, VM, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, CK, Buck, PG, Finch, AJ, Foster, F, Hughes, G, Jones, RWL, Robertson, NA, Giehl, I, Jakobs, K, Kleinknecht, K, Quast, G, Renk, B, Rohne, E, Sander, HG, Wachsmuth, H, Zeitnitz, C, Bonissent, A, Carr, J, Coyle, P, Leroy, O, Payre, P, Rousseau, D, Talby, M, Aleppo, M, Ragusa, F, Dietl, H, Ganis, G, Heister, A, Hüttmann, K, Lütjens, G, Mannert, C, Männer, W, Moser, HG, Schael, S, Settles, R, Stenzel, H, Wiedenmann, W, Wolf, G, Azzurri, P, Boucrot, J, Callot, O, Chen, S, Cordier, A, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jacholkowska, A, Le Diberder, F, Lefrançois, J, Lutz, AM, Schune, MH, Veillet, JJ, Videau, I, Zerwas, D, Bagliesi, G, Boccali, T, Calderini, G, Ciulli, V, Foà, L, Giassi, A, Ligabue, F, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Sciabà, A, Sguazzoni, G, Tenchini, R, Venturi, A, Verdini, PG, Blair, GA, Cowan, G, Green, MG, Medcalf, T, Strong, JA, von Wimmersperg-Toeller, JH, Clifft, RW, Edgecock, TR, Norton, PR, Tomalin, IR, Bloch-Devaux, B, Colas, P, Emery, S, Kozanecki, W, Lançon, E, Lemaire, MC, Locci, E, Perez, P, Rander, J, Renardy, JF, Roussarie, A, Schuller, JP, Schwindling, J, Trabelsi, A, Vallage, B, Black, SN, Dann, JH, Johnson, RP, Kim, HY, Konstantinidis, N, Litke, AM, McNeil, MA, Taylor, G, Booth, CN, Cartwright, S, Combley, F, Lehto, M, Thompson, LF, Affholderbach, K, Böhrer, A, Brandt, S, Grupen, C, Misiejuk, A, Prange, G, Sieler, U, Giannini, G, Gobbo, B, Rothberg, J, Wasserbaech, S, Armstrong, SR, Cranmer, K, Elmer, P, Ferguson, DPS, Gao, Y, González, S, Hayes, OJ, Hu, H, Jin, S, Kile, J, McNamara, PA, Nielsen, J, Orejudos, W, Pan, YB, Saadi, Y, Scott, IJ, Walsh, J, Wu, SL, Wu, X & Zobernig, G 2000, 'A measurement of the b-quark mass from hadronic Z decays', European Physical Journal C, vol. 18, no. 1, pp. 1-13. https://doi.org/10.1007/s100520000533

@article{0acfb293ac1c4f748dae64b0146a4c49,

title = "A measurement of the b-quark mass from hadronic Z decays",

abstract = "Hadronic Z decay data taken with the ALEPH detector at LEP1 are used to measure the three-jet rate as well as moments of various event-shape variables. The ratios of the observables obtained from b-tagged events and from an inclusive sample are determined. The mass of the b quark is extracted from a fit to the measured ratios using a next-to-leading order prediction including mass effects. Taking the first moment of the y3 distribution, which is the observable with the smallest hadronization corrections and systematic uncertainties, the result is mb(MZ) = [3.27 ± 0.22(stat) ± 0.22(exp) ± 0.38(had) ± 0.16(theo)] GeV/c2. The measured ratio is alternatively employed to test the flavour independence of the strong coupling constant for b and light quarks.",

author = "R. Barate and D. Decamp and P. Ghez and C. Goy and Lees, {J. P.} and E. Merle and Minard, {M. N.} and B. Pietrzyk and S. Bravo and Casado, {M. P.} and M. Chmeissani and Crespo, {J. M.} and E. Fernandez and M. Fernandez-Bosman and L. Garrido and E. Graug{\'e}s and M. Martinez and G. Merino and R. Miquel and Mir, {L. M.} and A. Pacheco and H. Ruiz and A. Colaleo and D. Creanza and {de Palma}, M. and G. Iaselli and G. Maggi and M. Maggi and S. Nuzzo and A. Ranieri and G. Raso and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and A. Tricomi and G. Zito and X. Huang and J. Lin and Q. Ouyang and T. Wang and Y. Xie and R. Xu and S. Xue and J. Zhang and L. Zhang and W. Zhao and D. Abbaneo and G. Boix and O. Buchm{\"u}ller and M. Cattaneo and F. Cerutti and G. Dissertori and H. Drevermann and Forty, {R. W.} and M. Frank and Greening, {T. C.} and Halley, {A. W.} and Hansen, {J. B.} and J. Harvey and P. Janot and B. Jost and I. Lehraus and P. Mato and A. Minten and A. Moutoussi and F. Ranjard and L. Rolandi and D. Schlatter and M. Schmitt and O. Schneider and P. Spagnolo and W. Tejessy and F. Teubert and E. Tournefier and Wright, {A. E.} and Z. Ajaltouni and F. Badaud and G. Chazelle and O. Deschamps and A. Falvard and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and S. Monteil and Montret, {J. C.} and D. Pallin and P. Perret and F. Podlyski and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and Nilsson, {B. S.} and A. W{\"a}{\"a}n{\"a}nen and G. Daskalakis and A. Kyriakis and C. Markou and E. Simopoulou and A. Vayaki and A. Blondel and G. Bonneaud and Brient, {J. C.} and A. Roug{\'e} and M. Rumpf and M. Swynghedauw and M. Verderi and H. Videau and E. Focardi and G. Parrini and K. Zachariadou and A. Antonelli and M. Antonelli and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and V. Chiarella and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and L. Passalacqua and M. Pepe-Altarelli and Lynch, {J. G.} and P. Negus and V. O'Shea and C. Raine and P. Teixeira-Dias and Thompson, {A. S.} and R. Cavanaugh and S. Dhamotharan and C. Geweniger and P. Hanke and G. Hansper and V. Hepp and Kluge, {E. E.} and A. Putzer and J. Sommer and K. Tittel and S. Werner and M. Wunsch and R. Beuselinck and Binnie, {D. M.} and W. Cameron and Dornan, {P. J.} and M. Girone and N. Marinelli and Sedgbeer, {J. K.} and Thompson, {J. C.} and E. Thomson and Ghete, {V. M.} and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Buck, {P. G.} and Finch, {A. J.} and F. Foster and G. Hughes and Jones, {R. W.L.} and Robertson, {N. A.} and I. Giehl and K. Jakobs and K. Kleinknecht and G. Quast and B. Renk and E. Rohne and Sander, {H. G.} and H. Wachsmuth and C. Zeitnitz and A. Bonissent and J. Carr and P. Coyle and O. Leroy and P. Payre and D. Rousseau and M. Talby and M. Aleppo and F. Ragusa and H. Dietl and G. Ganis and A. Heister and K. H{\"u}ttmann and G. L{\"u}tjens and C. Mannert and W. M{\"a}nner and Moser, {H. G.} and S. Schael and R. Settles and H. Stenzel and W. Wiedenmann and G. Wolf and P. Azzurri and J. Boucrot and O. Callot and S. Chen and A. Cordier and M. Davier and L. Duflot and Grivaz, {J. F.} and P. Heusse and A. Jacholkowska and {Le Diberder}, F. and J. Lefran{\c c}ois and Lutz, {A. M.} and Schune, {M. H.} and Veillet, {J. J.} and I. Videau and D. Zerwas and G. Bagliesi and T. Boccali and G. Calderini and V. Ciulli and L. Fo{\`a} and A. Giassi and F. Ligabue and A. Messineo and F. Palla and G. Rizzo and G. Sanguinetti and A. Sciab{\`a} and G. Sguazzoni and R. Tenchini and A. Venturi and Verdini, {P. G.} and Blair, {G. A.} and G. Cowan and Green, {M. G.} and T. Medcalf and Strong, {J. A.} and {von Wimmersperg-Toeller}, {J. H.} and Clifft, {R. W.} and Edgecock, {T. R.} and Norton, {P. R.} and Tomalin, {I. R.} and B. Bloch-Devaux and P. Colas and S. Emery and W. Kozanecki and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and P. Perez and J. Rander and Renardy, {J. F.} and A. Roussarie and Schuller, {J. P.} and J. Schwindling and A. Trabelsi and B. Vallage and Black, {S. N.} and Dann, {J. H.} and Johnson, {R. P.} and Kim, {H. Y.} and N. Konstantinidis and Litke, {A. M.} and McNeil, {M. A.} and G. Taylor and Booth, {C. N.} and S. Cartwright and F. Combley and M. Lehto and Thompson, {L. F.} and K. Affholderbach and A. B{\"o}hrer and S. Brandt and C. Grupen and A. Misiejuk and G. Prange and U. Sieler and G. Giannini and B. Gobbo and J. Rothberg and S. Wasserbaech and Armstrong, {S. R.} and K. Cranmer and P. Elmer and Ferguson, {D. P.S.} and Y. Gao and S. Gonz{\'a}lez and Hayes, {O. J.} and H. Hu and S. Jin and J. Kile and McNamara, {P. A.} and J. Nielsen and W. Orejudos and Pan, {Y. B.} and Y. Saadi and Scott, {I. J.} and J. Walsh and Wu, {S. L.} and X. Wu and G. Zobernig",

year = "2000",

doi = "10.1007/s100520000533",

language = "English (US)",

volume = "18",

pages = "1--13",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "1",

}

TY - JOUR

T1 - A measurement of the b-quark mass from hadronic Z decays

AU - Barate, R.

AU - Decamp, D.

AU - Ghez, P.

AU - Goy, C.

AU - Lees, J. P.

AU - Merle, E.

AU - Minard, M. N.

AU - Pietrzyk, B.

AU - Bravo, S.

AU - Casado, M. P.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Garrido, L.

AU - Graugés, E.

AU - Martinez, M.

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PY - 2000

Y1 - 2000

N2 - Hadronic Z decay data taken with the ALEPH detector at LEP1 are used to measure the three-jet rate as well as moments of various event-shape variables. The ratios of the observables obtained from b-tagged events and from an inclusive sample are determined. The mass of the b quark is extracted from a fit to the measured ratios using a next-to-leading order prediction including mass effects. Taking the first moment of the y3 distribution, which is the observable with the smallest hadronization corrections and systematic uncertainties, the result is mb(MZ) = [3.27 ± 0.22(stat) ± 0.22(exp) ± 0.38(had) ± 0.16(theo)] GeV/c2. The measured ratio is alternatively employed to test the flavour independence of the strong coupling constant for b and light quarks.

AB - Hadronic Z decay data taken with the ALEPH detector at LEP1 are used to measure the three-jet rate as well as moments of various event-shape variables. The ratios of the observables obtained from b-tagged events and from an inclusive sample are determined. The mass of the b quark is extracted from a fit to the measured ratios using a next-to-leading order prediction including mass effects. Taking the first moment of the y3 distribution, which is the observable with the smallest hadronization corrections and systematic uncertainties, the result is mb(MZ) = [3.27 ± 0.22(stat) ± 0.22(exp) ± 0.38(had) ± 0.16(theo)] GeV/c2. The measured ratio is alternatively employed to test the flavour independence of the strong coupling constant for b and light quarks.

UR - http://www.scopus.com/inward/record.url?scp=17544395561&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17544395561&partnerID=8YFLogxK

U2 - 10.1007/s100520000533

DO - 10.1007/s100520000533

M3 - Article

AN - SCOPUS:17544395561

VL - 18

SP - 1

EP - 13

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 1

ER -

A measurement of the b-quark mass from hadronic Z decays

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