Scaling violations in inclusive e+e- annihilation spectra

Summary, in English

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.

• Författare: C. Peterson; D. Schlatter; I. Schmitt; P. M. Zerwas
• Publiceringsår: 1983-01-01
• Språk: Engelska
• Sidor: 105-111
• Publikation/Tidskrift/Serie: Physical Review D
• Volym: 27
• Issue: 1
• Länkar: http://dx.doi.org/10.1103/PhysRevD.27.105
• Dokumenttyp: Artikel i tidskrift
• Förlag: American Physical Society
• Aktiv: Published
• ISBN/ISSN/Övrigt: ISSN: 0556-2821