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    A determination of electroweak parameters from Z0→μ+μ- (γ) (English)

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    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics ; 247 , 2-3 ; 473-480  ; 1990
    • ISSN:
      0370-2693
    • Article (Journal)  /  Electronic Resource

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    Abstract We have measured the partial width and forward-backward charge asymmetry for the reaction e+e-→Z0→μ+μ-(γ). We obtain a partial width Γμμ of 83.3±1.3(stat)±0.9(sys) MeV and the following values for the vector and axial vector couplings: g v=−0.062−0.015 +0.020 and g A=−0.497−0.005 +0.005. From our measurement of the partial width and the mass of the Z0 boson we determine the effective electroweak mixing angle, sin2 θ w=0.232±0.005, and the neutral current coupling strength parameter, ϱ=0.998±0.016.

    Table of contents – Volume 247, Issue 2-3

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    185
    The nucleus as a condensate of collective quark triplets
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    191
    Saturation of E2 transition and Pauli factors in the interacting boson model
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    197
    Nucleon-deuteron zero-energy scattering
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    202
    Proof of the extended Bloch-Messiah theorem in the thermal Hartree-Fock-Bogoliubov theory
    Tanabe, K. / Sugawara-Tanabe, K. et al. | 1990
    206
    Properties of the baryon octet in the SU(3) Skyrme model
    Kälbermann, G. / Eisenberg, J.M. et al. | 1990
    210
    Form factors in the projected chiral soliton model with vector mesons
    Alberto, P. / Ruiz Arriola, E. / Urbano, J.N. / Goeke, K. et al. | 1990
    215
    A new optical model approach for heavy ion fusion
    Mohanty, A.K. / Sastry, S.V.S. / Kataria, S.K. / Kailas, S. / Ramamurthy, V.S. et al. | 1990
    219
    New high-spin stretched states in 208Pb observed by the (p,p') reaction
    Fujita, Y. / Yanagihara, T. / Fujiwara, M. / Katayama, I. / Hosono, K. / Morinobu, S. / Yamazaki, T. / Hayakawa, S.I. / Katori, K. / Muto, K. et al. | 1990
    223
    Temperature measurements at backward angles in 40Ar induced reactions on Ag at E/A=44 MeV
    Dabrowski, H. / Goujdami, D. / Guilbault, F. / Lebrun, C. / Ardouin, D. / Lautridou, P. / Boisgard, R. / Québert, J. / Péghaire, A. / Eudes, P. et al. | 1990
    228
    Signatures for isoscalar spin transitions excited in ( d , d ') reactions
    Morlet, M. / Willis, A. / Van de Wiele, J. / Marty, N. / Guillot, J. / Langevin-Joliot, H. / Bimbot, L. / Rosier, L. / Tomasi-Gustafsson, E. / Edwards, G.W.R. et al. | 1990
    233
    Nuclear collective flow from gaussian fits to triple differential distributions
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    238
    High-spin parity doublets in the nucleus 151Pm
    Urban, W. / Bacelar, J.C. / Gast, W. / Hebbinghaus, G. / Krämer-Flecken, A. / Lieder, R.M. / Morek, T. / Rza̧ca-Urban, T. et al. | 1990
    242
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    246
    Extended inflation in closed cosmologies
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    251
    Six-dimensional wormholes
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    257
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    265
    Finite number of states in unitary d < 1 strings
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    267
    A supersymmetric model of random surfaces at D = 1
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    273
    Hamiltonian formulation and quantum constraint algebra for a closed string moving in a curved background
    Diakonou, M. / Farakos, K. / Koutsoumbas, G. / Papantonopoulos, E. et al. | 1990
    280
    On the closed bosonic string effective action
    García-Bellido, J. / Quirós, M. et al. | 1990
    289
    Supersymmetry currents and WZ-like terms in (supersymmetry)2 models
    de Azcárraga, J.A. / Frydryszak, A. / Lukierski, J. et al. | 1990
    295
    Two-dimensional quantum (0,2) supergravity
    Xu, Rui-Ming et al. | 1990
    301
    SUSY-WKB is neither exact nor never worse than WKB for all solvable potentials
    DeLaney, David / Nieto, Michael Martin et al. | 1990
    309
    The fractional supersymmetric sine-Gordon models
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    317
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    323
    Polynomial equations and modular transformations in topological field theory
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    331
    Extended KN algebras and extended conformal field theories over higher genus Riemann surfaces
    Ceresole, Anna / Huang, Chao-shang et al. | 1990
    337
    Quantum dynamics of the D=3 abelian Higgs model and spontaneous breaking of parity
    Spiridonov, Vyacheslav P. et al. | 1990
    341
    The Higgs resonance shape
    Willenbrock, S. / Valencia, G. et al. | 1990
    346
    Composite Higgs and the reduction of couplings
    Bastero-Gil, M. / Pérez-Mercader, J. et al. | 1990
    351
    Calculational rules for finite temperature reaction rates
    Niégawa, A. et al. | 1990
    357
    Chiral (gauge) symmetry and regularizations
    Aoki, Sinya et al. | 1990
    363
    Doubling of equations and universality in matrix models of random surfaces
    Bachas, C. / Petropoulos, P.M.S. et al. | 1990
    370
    Decoupling of doublers and the phase diagram of lattice chiral fermions for strong Wilson-Yukawa coupling
    Golterman, Maarten F.L. / Petcher, Donald N. et al. | 1990
    377
    Quantum fluctuations of the gluon string in lattice QCD
    Faber, Manfried / Markum, Harald / Müller, Manfred / Olejník, Štefan et al. | 1990
    381
    Chiral interface at the finite temperature transition point of QCD
    Frei, Z. / Patkós, A. et al. | 1990
    387
    How can the strangeness content of the proton be both large and small
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    394
    Vector symmetry breaking in charmed meson decays
    Georgi, Howard / Uchiyama, Fumiyo et al. | 1990
    399
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    Chay, Junegone / Georgi, Howard / Grinstein, Benjamin et al. | 1990
    406
    Power corrections to leading logs and their application to heavy quark decays
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    412
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    418
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    423
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    432
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    438
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    442
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    448
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    458
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    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. et al. | 1990
    473
    A determination of electroweak parameters from Z0→μ+μ- (γ)
    Adeva, B. / Adriani, O. / Aguilar-Benitez, M. / Akbari, H. / Alcaraz, J. / Aloisio, A. / Alverson, G. / Alviggi, M.G. / An, Q. / Anderhub, H. et al. | 1990

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