We calculate the non-universal correction to the Zbb vertex in a simple extension of the Standard Model, where a charge +2/3 isosinglet quark is added to the standard spectrum. Comparison is made with other solutions to Rb (and Rc) that demand particles lighter than Mw.
|Number of pages||7|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - 1996 Oct 24|
ASJC Scopus subject areas
- Nuclear and High Energy Physics