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Non-factorizable effects in \(B - \overline{B}\) mixing

  • A. Hiorth
  • J.O. Eeg
Article

Abstract

We study the B-parameter (“bag factor”) for \(B -\overline{B}\) mixing within a recently developed heavy-light chiral quark model. Non-factorizable contributions in terms of gluon condensates and chiral corrections are calculated. In addition, we also consider 1/m Q corrections within heavy quark effective field theory. Perturbative QCD effects below μ = m b known from other work are also included. Considering two sets of input parameters, we find that the renormalization invariant B-parameter is \(\hat{B}=1.51 \pm 0.09\) for B d and \(\hat{B}=1.40 \pm 0.16\) for B s .

PACS: 13.25.Hw – 12.39.Fe – 12.39.Hg

Keywords

Field Theory Input Parameter Heavy Quark Quark Model Effective Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag, Società Italiana di Fisica 2003

Authors and Affiliations

  • A. Hiorth
    • 1
  • J.O. Eeg
    • 1
  1. 1.Department of Physics, University of Oslo, P.O.Box 1048 Blindern, N-0316 OsloNorway

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