What's the Rb and Rc problems in electroweak theoy?
Astronuc
Jul16-08, 05:00 PM
With respect to hadronic branching fractions into heavy quarks (Rb, Rc), here a two papers.
Electroweak Results from SLD
Authors: Nicolo de Groot
http://arxiv.org/abs/hep-ex/0105058
Electroweak and Heavy Flavor Physics at SLD
Authors: Stephane Willocq (for the SLD Collaboration)
http://arxiv.org/abs/hep-ex/9802005
This paper may be of interest - http://pdg.ift.unesp.br/2007/reviews/stanmodelrpp.pdf
What does one mean by problem?
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