An Analytic Calculation of Higher Order Quantum Chromodynamic Corrections in e+ e- Annihilation

Dec, 1979
13 pages
Published in:
  • Phys.Rev.Lett. 44 (1980) 560
Report number:
  • UCSD-10P10-206

Citations per year

198019912002201320240102030
Abstract: (APS)
Order-αs2 corrections to the annihilation of e+e− into hadrons are computed analytically. We briefly discuss the technique, which involves the extension to noninteger dimensions of Chebyshev expansions. In the energy range 15-30 GeV (five flavors) we find R=3ΣeQ2{1+αs(q)π−0.94[αs(q)π]2+…}, where αs is the momentum-space subtracted strong-coupling constant. Our result agrees with that of Dine and Sapirstein, and Chetyrkin, Kataev, and Tkachov.
  • ELECTRON POSITRON: ANNIHILATION
  • ANNIHILATION: ELECTRON POSITRON
  • HADRON: MULTIPLE PRODUCTION
  • MULTIPLE PRODUCTION: HADRON
  • HADRON: ELECTROPRODUCTION
  • ELECTROPRODUCTION: HADRON
  • QUANTUM CHROMODYNAMICS: CORRECTION
  • CORRECTION: HIGHER-ORDER
  • TOTAL CROSS SECTION: RATIO
  • RATIO: TOTAL CROSS SECTION