Baryonic Z′ connection of LEP Rb,c data with Tevatron (W, Z, γ) bb̄ events

V. Barger, Kingman Cheung, Paul Langacker

Research output: Contribution to journalArticlepeer-review

60 Scopus citations


The mixing of a new Z′ boson with the Z significantly improves the fit to the LEP precision electroweak data, provided that the Z′ couples mainly to quarks. If MZ2 < 200 GeV, the s-channel Z2 production and (W, Z, γ) Z2 pair production cross sections at the Tevatron give an excess above QCD of bb̄ and (W, Z, γ) bb̄ events, respectively, with invariant mass m(bb̄) ≈ MZ2, which provide viable signals for detection of the Z2. The interference of the Z2 with γ, Z1 in e+e- → b̄b (c̄c) at LEP 1.5 energies is correlated with Rb (Rc) and may be observable.

Original languageEnglish (US)
Pages (from-to)226-236
Number of pages11
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-3
StatePublished - Jul 18 1996

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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