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    Measurement of the B0 B 0 mixing parameter and the Z → b b forward-backward asymmetry (English)

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    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics ; 335 , 3-4 ; 542-553  ; 1994
    • ISSN:
      0370-2693
    • Article (Journal)  /  Electronic Resource

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    Abstract We have measured the time integrated B0 B 0 mixing parameter and the forward-backward asymmetry in the process e+e− → b b using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B0 B 0 mixing parameter to be χ B = 0.123 ± 0.012 (stat.) ± 0.008 (sys.), and the b b forward-backward asymmetry at the effective center-of-mass energy √s = 91.30 GeV to be A b b = 0.087 ± 0.011 ( stat. ) ± 0.004 ( sys. ) This measurement corresponds to a value of the effective electroweak mixing angle of sin 2 θ w = 0.2335 ± 0.0021.

    Table of contents – Volume 335, Issue 3-4

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    253
    Pionic content of pNN and pNcap delta vertex functions
    Haider, Q. / Liu, L. C. et al. | 1994
    253
    Pionic content of ϱNN and ϱNΔ vertex functions
    Haider, Q. / Liu, L.C. et al. | 1994
    259
    Shape coexistence around 16 44S28: the deformed N = 28 region 1565
    Werner, T.R. / Sheikh, J.A. / Nazarewicz, W. / Strayer, M.R. / Umar, A.S. / Misu, M. et al. | 1994
    259
    Shape coexistence around ^4^4~1~6S~2~8: the deformed N=28 region
    Werner, T. R. / Sheikh, J. A. / Nazarewicz, W. / Strayer, M. R. et al. | 1994
    266
    Kaon condensation in “nuclear star” matter
    Lee, Chang-Hwan / Brown, G.E. / Rho, Mannque et al. | 1994
    273
    Density dependence of the Σ nucleus optical potential derived from Σ− atom data
    Batty, C.J. / Friedman, E. / Gal, A. et al. | 1994
    279
    Pion-sigma exchange and the proton-proton fusion rate
    Schramm, S. / Horowitz, C.J. et al. | 1994
    282
    Charge symmetry breaking via p-omega mixing from model quark-gluon dynamics
    Mitchell, K. L. / Tandy, P. C. / Roberts, C. D. / Cahill, R. T. et al. | 1994
    282
    Charge symmetry breaking via ϱω mixing from model quark-gluon dynamics
    Mitchell, K.L. / Tandy, P.C. / Roberts, C.D. / Cahill, R.T. et al. | 1994
    289
    Probing Δ resonance production in Au+Au collisions at 1 GeV/nucleon
    Bass, S.A. / Hofmann, M. / Hartnack, C. / Stöcker, H. / Greiner, W. et al. | 1994
    289
    Probing cap delta resonance production in Au + Au collisions at 1 GeV/nucleon
    Bass, S. A. / Hofmann, M. / Hartnack, C. / Stoecker, H. et al. | 1994
    295
    Effects of nuclear structure on average angular momentum in subbarrier fusion
    Balantekin, A.B. / Bennett, J.R. / Kuyucak, S. et al. | 1994
    300
    Equilibrium versus non-equilibrium emission in projectile fragmentation for the 40Ar + natAg system at 58.7 A MeV
    Sauvestre, J.E. / Charvet, J.-L. / Dayras, R. / Volant, C. / Berthier, B. / Legrain, R. / Lucas, R. / Pollacco, E.C. / De Filippo, E. / Lanzanó, G. et al. | 1994
    307
    Multiple-highly deformed bands in the nucleus 134Nd
    Petrache, C.M. / Lunardi, S. / Bazzacco, D. / Bucurescu, D. / de Angelis, G. / Rossi-Alvarez, C. / Ur, C. / Wyss, R. et al. | 1994
    313
    Excited bands in the doubly-magic superdeformed 152Dy nucleus: evidence for the first N = 7 proton hyper-intruder orbital
    Dagnall, P.J. / Beausang, C.W. / Twin, P.J. / Bentley, M.A. / Beck, F.A. / Byrski, Th. / Clarke, S. / Curien, D. / Duchene, G. / de France, G. et al. | 1994
    319
    Emission of nucleons and light fragments relative to the reaction plane in Bi+Pb collisions at 1 GeV/u
    Kugler, A. / Wagner, V. / Pachr, M. / Šumbera, M. / Sobolev, Yu.G. / Hlaváč, S. / Simon, R.S. / Lorencz, R. / Wohlgemuth, R. et al. | 1994
    326
    The mass of the negative pion
    Jeckelmann, B. / Goudsmit, P.F.A. / Leisi, H.J. et al. | 1994
    330
    Two-nucleon pion absorption in 4He at 1 GeV/c
    Nagae, T. / Fukuda, T. / Sekimoto, M. / Miyachi, T. / Kitching, P. / Nomura, I. / Arai, I. / Tomizawa, K. / Kitayama, H. / Nagasaka, Y. et al. | 1994
    334
    Canonical structure of 2D black holes
    Navarro-Salas, José / Navarro, Miguel / Talavera, César F. et al. | 1994
    339
    Protecting the baryon asymmetry with thermal masses
    Davidson, S. / Kainulainen, K. / Olive, K.A. et al. | 1994
    345
    Upper bound on hot dark matter density from SO(10) Yukawa unification
    Brignole, Andrea / Murayama, Hitoshi / Rattazzi, Riccardo et al. | 1994
    355
    On the exponential bound in four dimensional simplical gravity
    Ambjørn, J. / Jurkiewicz, J. et al. | 1994
    355
    On the exponential bound in four dimensional simplicial gravity
    Ambjoern, J. / Jurkiewicz, J. et al. | 1994
    359
    On the high-temperature behaviour of the closed superstring
    Dusini, S. / Zerbini, S. et al. | 1994
    364
    Flow equations and BRS invariance for Yang-Mills theories
    Ellwanger, Ulrich et al. | 1994
    371
    Wilson loop for large N Yang-Mills theory on a two-dimensional sphere
    Daul, Jean-Marc / Kazakov, Vladimir A. et al. | 1994
    377
    Summing over world-sheet boundaries
    Green, Michael B. / Polchinski, Joseph et al. | 1994
    383
    Geometric quantization on homogeneous spaces and the meaning of “inequivalent” quantizations
    Robson, M.A. et al. | 1994
    388
    Path-integral quantization of W ∞ gravity
    Mohayee, R. et al. | 1994
    395
    Tunneling through sphalerons: the O(3) σ-model on a cylinder
    Snippe, Jeroen et al. | 1994
    403
    Towards a dynamical determination of parameters in the minimal supersymmetric standard model
    Kounnas, Costas / Zwirner, Fabio / Pavel, Ilarion et al. | 1994
    416
    Constrained topological field theory
    Anselmi, Damiano / Fré, Pietro / Girardello, Luciano / Soriani, Paolo et al. | 1994
    423
    Generalized Gaussian effective potential: low dimensional scalar fields
    Cea, Paolo / Tedesco, Luigi et al. | 1994
    428
    Nonfactorizable contributions to nonleptonic weak decays of heavy mesons
    Cheng, Hai-Yang et al. | 1994
    436
    Thermodynamics of imaginary coupled sine-Gordon. Dense polymer finite-size scaling function
    Zamolodchikov, Al. et al. | 1994
    444
    Neutrino decay in the doublet majoron model
    Kikuchi, Hisashi / Ma, Ernest et al. | 1994
    452
    Baryon magnetic moments in the 1 N c expansion
    Jenkins, Elizabeth / Manohar, Aneesh V. et al. | 1994
    460
    Heavy Higgs production and decay via e+e− → Z0H0 → b b W+W− and irreducible backgrounds at the next linear collider
    Ballestrero, Alessandro / Maina, Ezio / Moretti, Stefano et al. | 1994
    470
    Triviality, perturbation theory and Z → b b
    Aoki, Kenichiro / Peris, Santiago et al. | 1994
    479
    Probing lumps of wee partons in deep inelastic scattering
    Buchmüller, W. et al. | 1994
    484
    The top-quark and the Higgs-boson masses from LEP, SLC and CDF data
    Montagna, Guido / Nicrosini, Oreste / Passarino, Giampiero / Piccinini, Fulvio et al. | 1994
    490
    Four quark processes at LEP 200
    Pittau, R. et al. | 1994
    494
    Direct photoproduction of jets in the k T-factorisation prescription
    Forshaw, J.R. / Roberts, R.G. et al. | 1994
    494
    Direct photoproduction of jets in the kappa~T- factorisation prescription
    Forshaw, J. R. / Roberts, R. G. et al. | 1994
    500
    The Levin-Frankfurt additive quark model revisited — new insight into QCD?
    Lipkin, Harry J. et al. | 1994
    506
    Electromagnetic pion form factor at finite temperature
    Dominguez, C.A. / Loewe, M. / Rozowsky, J.S. et al. | 1994
    510
    Singlet quarks beyond the top at the Tevatron?
    Barger, V. / Phillips, R.J.N. et al. | 1994
    515
    Estimating the top quark mass with a few events
    Prosper, Harrison B. et al. | 1994
    519
    A new search for neutrinoless ββ decay with a thermal detector
    Alessandrello, A. / Brofferio, C. / Camin, D.V. / Cremonesi, O. / Fiorini, E. / Garcia, E. / Giuliani, A. / de Marcillac, P. / Nucciotti, A. / Pavan, M. et al. | 1994
    526
    Reconstruction of the decay B^- -> D^0~1(2414)^-
    | 1994
    526
    Reconstruction of the decay B − → D 1 0(2414) π−
    Albrecht, H. / Hamacher, T. / Hofmann, R.P. / Kirchhoff, T. / Mankel, R. / Nau, A. / Nowak, S. / Schröder, H. / Schulz, H.D. / Walter, M. et al. | 1994
    535
    Density and correlation integrals in deep-inelastic muon-nucleon scattering at 490 GeV
    Adams, M.R. / Aïd, S. / Anthony, P.L. / Baker, M.D. / Bartlett, J. / Bhatti, A.A. / Botterweck, F. / Braun, H.M. / Busza, W. / Conrad, J.M. et al. | 1994
    542
    Measurement of the B0 B 0 mixing parameter and the Z → b b forward-backward asymmetry
    Acciarri, M. / Adam, A. / Adriani, O. / Aguilar-Benitez, M. / Ahlen, S. / Alcaraz, J. / Aloisio, A. / Alverson, G. / Alviggi, M.G. / Ambrosi, G. et al. | 1994
    554
    The equivalence theorem for chiral lagrangians phys. lett. B 329 (1994) 469
    Dobado, A. / Peláez, J.R. et al. | 1994
    555
    A remark on the coupling dependence in affine Toda field theories (Phys. Lett. B 312 (1993) 291)
    Dorey, Patrick et al. | 1994
    556
    Asymptotically finite theories and the screening of cosmological constant by quantum effects (Phys. Lett. B 329 (1994) 181)
    Shapiro, I.L. et al. | 1994
    557
    Cumulative author index to volumes 331–335
    | 1994

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