Hadron radiation in leptonic Z decays

Dec, 1993
7 pages
Published in:
  • Phys.Lett.B 325 (1994) 495-499,
  • Phys.Lett.B 327 (1994) 439-439 (erratum)
e-Print:
Report number:
  • TTP-93-34

Citations per year

199420012008201520210123456
Abstract:
The rate for the final state radiation of hadrons in leptonic ZZ decays is evaluated, using as input experimental data for σ(e +e hadrons)\sigma (e~+e~-\to hadrons) in the low energy region. Configurations with a lepton pair of large and a hadronic state of low invariant mass are dominant. A relative rate Γllˉhad/Γllˉ=6.3×10 4\Gamma_{l\bar l had}/\Gamma_{l\bar l}=6.3\times 10~{-4} is calculated. This result is about twice the prediction based on a parton model calculation with a quark mass of 300300 MeV. The rate for secondary production of heavy quarks is calculated in the same formalism.
  • Z0: leptonic decay
  • leptonic decay: Z0
  • Z0: rare decay
  • rare decay: Z0
  • lepton: pair production
  • pair production: lepton
  • photon: radiation
  • hadron: associated production
  • associated production: hadron
  • Z0: width