Scaling violations in inclusive e+e- annihilation spectra

Research output: Contribution to journalArticle


The origin of the observed scaling violations in inclusive e+e- annihilation is investigated. Perturbative jet evolution is not necessarily the only reason for scale breaking in the hadron spectra at present energies. Remnants of finite-transverse-momentum and mass effects are still important in nonperturbative, cascade-type, jet formation in the 10 GeV range. Heavy-quark fragmentation has a strong impact on hadronic inclusive spectra. A simple parametrization for the heavy-quark fragmentation function is given which describes well recently measured charmed-meson spectra. Taking these effects into account, good agreement with the observed scaling violations is obtained in cascade-type jet models with hard-gluon bremsstrahlung.


  • C. Peterson
  • D. Schlatter
  • I. Schmitt
  • P. M. Zerwas
External organisations
  • Stanford University
Original languageEnglish
Pages (from-to)105-111
Number of pages7
JournalPhysical Review D
Issue number1
Publication statusPublished - 1983 Jan 1
Publication categoryResearch
Externally publishedYes