Use all functions optimally: LOGIN NOW

    Search for B0 B 0 oscillations at the CERN proton-antiproton collider (English)

    Free access
    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics ; 186 , 2 ; 247-254  ; 1986
    • ISSN:
      0370-2693
    • Article (Journal)  /  Electronic Resource

    How to get this title?

    Download

    Export, share and cite

    Abstract We report on a search for B0↔ B 0 oscillations (mixing) using events with two identified muons from data collected at the CERN p p collider. In the absence of B0↔ B 0 oscillations, dimuons coming directly from decays of beauty-antibeauty paris must have opposite signs. Like-sign dimuons are expected from events where one muon arises from beauty decay and the other from the charm decay of the associated beauty-charm cascade. Taking these processes into account, together with the contribution from charm production, the predicted ratio of like-sign to unlike-sign muon pairs is 0.26±0.03. Experimentally we measure 0.42±0.07±0.03. A natural explanation for the excess of like-sign events is the existence of a significant amount of B0↔ B 0 transitions. The fraction of beauty particles that produce first-generation decay muons with the opposite electric charge from that expected without mixing is deduced to be: χ = 0.121±0.047. Combined with the null result from searches for B0↔ B 0 oscillations at e+e− colliders, our results are consistent with transitions inthe B0 s system, as favoured theoretically.

    Table of contents – Volume 186, Issue 2

    Show all volumes and issues

    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.

    113
    Nuclear spin response to inelastic proton scattering: Finite geometry and absorption effects
    Okuhara, Y. / Castel, B. / Johnstone, I.P. / Toki, H. et al. | 1986
    119
    Group structure of an isospin-invariant fermion dynamical symmetry model
    Halse, P. et al. | 1986
    124
    Multiple solutions in configuration space in a chiral nuclear model
    Kunz, J. / Masak, D. / Post, U. et al. | 1986
    129
    Supersymmetry restoration in the compactified O(16) ⊗ O (16)' heterotic string theory
    Itoyama, H. / Taylor, T.R. et al. | 1986
    134
    Prepotentials in superstring world sheet supergravity
    Evans, Mark / Ovrut, Burt A. et al. | 1986
    141
    Loop calculations for the Green-Schwarz superstring
    Carlip, Steven et al. | 1986
    147
    CP-violation in a superstring inspired model with oxotic quarks
    Mukhopadhyaya, Biswarup / Ray, Aditi / Raychaudhuri, Amitava et al. | 1986
    151
    Geometric stringy gravity
    Aragone, C. et al. | 1986
    157
    Cosmological Kaluza-Klein monopoles
    Li, Miao et al. | 1986
    161
    Stability conditions for a scalar field coupled non-minimally with gravity
    Bertolami, Orfeu et al. | 1986
    167
    (8,0) Locally supersymmetric sigma models with conformal invariance in two dimensions
    Bergshoeff, E. / Sezgin, E. / Nishino, H. et al. | 1986
    173
    Beta functions and central charge of supersymmetric sigma models with torsion
    Guadagnini, E. / Mintchev, M. et al. | 1986
    180
    Hidden local gauge invariance in integrable magnetic chains
    De Vega, H.J. / Lopes, E. et al. | 1986
    185
    Coleman-Weinberg, Nielsen and Daisies
    Johnston, D. et al. | 1986
    189
    From points to gauge fields
    Meurice, Yannick et al. | 1986
    195
    Applications of Zimmermann's reduction of couplings in φ 4 models
    Meyer-Ortmanns, Hildegard et al. | 1986
    200
    Chiral-invariant regularization of fermions on the lattice
    Rebbi, Claudio et al. | 1987
    205
    Higher order contributions in finite temperature renormalization group
    Funakubo, Koichi / Sakamoto, Makoto et al. | 1986
    211
    Oscillations of three generations of neutrinos and the solar neutrino problem
    Baldini, A. / Giudice, G.F. et al. | 1986
    217
    Leptonic and hadronic decay rates of winos
    Oshimo, Noriyuki / Kizukuri, Yoshiki et al. | 1986
    223
    π + p and K+p elastic scattering at 250 GeV/c
    Adamus, M. / Ajinenko, I.V. / Agababyan, N.M. / Belokopytov, Y.A. / Böttcher, H. / Chliapnikov, P.V. / Crijns, F. / De Roeck, A. / De Wolf, E.A. / Dziunikowska, K. et al. | 1986
    227
    The cross section of diffraction dissociation at the cern SPS collider
    Bernard, D. / Bozzo, M. / Braccini, P.L. / Carbonara, F. / Castaldi, R. / Cervelli, F. / Chiefari, G. / Drago, E. / Haguenauer, M. / Innocente, V. et al. | 1986
    233
    Search for light gluinos
    Tuts, P.M. / Franzini, P. / Youssef, S. / Zhao, T. / Kaarsberg, T.M. / Lee-Franzini, J. / Lovelock, D.M.J. / Narain, M. / Sontz, S. / Schamberger, R.D. et al. | 1986
    237
    Beauty production at the CERN proton-antiproton collider
    Albajar, C. / Albrow, M.G. / Allkofer, O.C. / Arnison, G. / Astbury, A. / Aubert, B. / Axon, T. / Bacci, C. / Bacon, T. / Bains, N. et al. | 1986
    247
    Search for B0 B 0 oscillations at the CERN proton-antiproton collider
    Albajar, C. / Albrow, M.G. / Allkofer, O.C. / Arnison, G. / Astbury, A. / Aubert, B. / Axon, T. / Bacci, C. / Bacon, T. / Bains, N. et al. | 1986

    How to get this title?

    Download

    Export, share and cite

    Feedback