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    Measurement of Γ b b Γ had from hadronic decays of the Z (English)

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    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics ; 307 , 1-2 ; 237-246  ; 1993
    • ISSN:
      0370-2693
    • Article (Journal)  /  Electronic Resource

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    Abstract We report a measurement of R b = Γ b b Γ had from Z → q q events at LEP. Z → b b events are identified using a multidimensional analysis based on a neural network approach. We obtain 60% sample purity with an efficiency of 35%. Our measured value of R b is 0.222±0.003±0.007.

    Table of contents – Volume 307, Issue 1-2

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    The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

    1
    Photon interferometry of quark-gluon dynamics
    Srivastava, Dinesh K. / Kapusta, Joseph I. et al. | 1993
    7
    Unitary πNN theory with full dressing
    Kvinikhidze, A.N. / Blankleider, B. et al. | 1993
    13
    Analyzing power in nd elastic scattering at E n lab=3 MeV. Measurement and calculation
    McAninch, J.E. / Haeberli, W. / Witała, H. / Glöckle, W. / Golak, J. et al. | 1993
    20
    Subthreshold resonance effects in the mirror reactions 6Li (d, p) 7Li and 6Li (d, n) 7Be
    Czerski, K. / Bucka, H. / Heide, P. / Makubire, T. et al. | 1993
    25
    Stationary universe
    Linde, Andrei / Mezhlumian, Arthur et al. | 1993
    34
    Baby universes in 2d quantum gravity
    Ambjørn, Jan / Jain, Sanjay / Thorleifsson, Gudmar et al. | 1993
    40
    Dual nature of the Ricci scalar and inflation
    Srivastava, S.K. / Sinha, K.P. et al. | 1993
    44
    Super black holes
    Danielsson, Ulf H. et al. | 1993
    49
    Dynamics of the cosmological quark-hadron transition in a matter-dominated universe. Distribution and evolution of baryon inhomogeneities
    Pantano, O. / Riotto, A. et al. | 1992
    56
    The hidden quantum group of the eight-vertex free fermion model: q-Clifford algebras
    Cuerno, R. / Gómez, C. / López, E. / Sierra, G. et al. | 1993
    61
    A four-Reggeon vertex for Z 3 twisted fermionic fields
    Engberg, Niclas / Nilsson, Bengt E.W. et al. | 1993
    68
    Fermionic sum representations for conformal field theory characters
    Kedem, R. / Klassen, T.R. / McCoy, B.M. / Melzer, E. et al. | 1993
    77
    On the BRST charge for topological BF theories
    Caicedo, M.I. / Restuccia, A. et al. | 1993
    83
    Form factors of the elementary field in the Bullough-Dodd model
    Fring, A. / Mussardo, G. / Simonetti, P. et al. | 1992
    91
    Topological two-dimensional quantum mechanics
    de Veigy, Alain Dasnières / Ouvry, Stéphane et al. | 1993
    100
    General deformation schemes and N = 2 supersymmetric quantum mechanics
    Bonatsos, Dennis / Daskaloyannis, C. et al. | 1992
    106
    On the electroweak phase transition in the Minimal Supersymmetric Standard Model
    Espinosa, J.R. / Quirós, M. / Zwirner, F. et al. | 1993
    116
    One-loop effects of non-standard triple gauge boson vertices
    Hernández, P. / Vegas, F.J. et al. | 1992
    128
    A fast mechanism for the acceleration of solar cosmic rays and solar energetic particles in solar flares
    Fiorentini, G. / Gershtein, S.S. et al. | 1993
    132
    Summation of an infinite series of ladder diagrams
    Broadhurst, D.J. et al. | 1993
    140
    Valley bifurcation in an O(3) σ model. Implications for high-energy baryon number violation
    Grandy, Jeffrey M. / Mattis, Michael P. et al. | 1993
    147
    High-energy factorization in QCD and minimal subtraction scheme
    Catani, S. / Ciafaloni, M. / Hautmann, F. et al. | 1993
    154
    Renormalization scheme-invariant large-order perturbation theory and infrared renormalons in QCD
    Beneke, M. et al. | 1993
    161
    Diffractive hard scattering with a coherent pomeron
    Collins, John C. / Frankfurt, Leonid / Strikman, Mark et al. | 1993
    169
    Power suppressed heavy quark mass corrections to the τ-lepton and Z-boson decay rates
    Chetyrkin, K.G. et al. | 1993
    177
    Modification of the gluon structure function and J ψ leptoproduction by nuclear Fermi motion
    Merabet, H. / Mathiot, J.F. / Dolejší, J. / Pirner, H.J. et al. | 1993
    177
    Modification of the gluon structure function and J/psi leptoproduction by nuclear Fermi motion
    Merabet, H. / Mathiot, J. F. / Dolejsi, J. / Pirner, H. J. et al. | 1993
    182
    Decays K L,S → π 0 π 0 γ and K L,S → π 0 π 0 e + e − as probes of chiral dynamics
    Heiliger, P. / Sehgal, L.M. et al. | 1993
    182
    Decays K~L~,~S->^0^0gamma and K~L~,~S->^0^0e^+e^- as probes of chiral dynamics
    Heiliger, P. / Sehgal, L. M. et al. | 1993
    187
    Measurement of the mass of the Z boson and the energy calibration of LEP
    | 1993
    194
    Measurement of the B 0 and B − meson lifetimes
    Buskulic, D. / Decamp, D. / Goy, C. / Lees, J.-P. / Minard, M.-N. / Mours, B. / Pietrzyk, B. / Alemany, R. / Ariztizabal, F. / Comas, P. et al. | 1993
    209
    Measurement of the strong coupling constant using τ decays
    Buskulic, D. / Decamp, D. / Goy, C. / Lees, J.-P. / Minard, M.-N. / Mours, B. / Pietrzyk, B. / Alemany, R. / Ariztizabal, F. / Comas, P. et al. | 1993
    221
    Determination of α S for b quarks at the Z 0 resonance
    Abreu, P. / Adam, W. / Adye, T. / Agasi, E. / Aleksan, R. / Alekseev, G.D. / Algeri, A. / Allen, P. / Almehed, S. / Alvsvaag, S.J. et al. | 1993
    221
    Determination of ~b for b quarks at the Z^0 resonance
    | 1993
    237
    Measurement of Γ b b Γ had from hadronic decays of the Z
    Adrian, O. / Aguilar-Benitez, M. / Ahlen, S. / Alcaraz, J. / Aloisio, A. / Alverson, G. / Alviggi, M.G. / Ambrosi, G. / An, Q. / Anderhub, H. et al. | 1993
    247
    Measurement of the B0 and B+ lifetimes
    Acton, P.D. / Alexander, G. / Allison, J. / Allport, P.P. / Anderson, K.J. / Arcelli, S. / Astbury, A. / Axen, D. / Azuelos, G. / Bahan, G.A. et al. | 1993
    262
    Analysis of the decay mode D^+ -> K*^0^+v
    Frabetti, P. L. et al. et al. | 1993
    262
    Analysis of the decay mode D+ → K ∗0μ+ν
    Frabetti, P.L. / Grim, G.P. / Paolone, V.S. / Yager, P.M. / Bogart, C.W. / Cheung, H.W.K. / Culy, S. / Cumalat, J.P. / Dallapicola, C. / Ginkel, J.F. et al. | 1993
    269
    Emission of slow singly charged fragments in relativistic 16O-nucleus interactions
    Albrecht, R. / Awes, T.C. / Baktash, C. / Beckmann, P. / Berger, F. / Bloomer, M.A. / Bock, D. / Bock, R. / Claesson, G. / Clewing, G. et al. | 1993
    v
    Editorial Board
    | 1993

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