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Scaling violations in inclusive e+e- annihilation spectra

Peterson, C. LU ; Schlatter, D. ; Schmitt, I. and Zerwas, P. M. (1983) In Physical Review D 27(1). p.105-111
Abstract

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.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Physical Review D
volume
27
issue
1
pages
7 pages
publisher
American Physical Society
external identifiers
  • scopus:0001727414
ISSN
0556-2821
DOI
10.1103/PhysRevD.27.105
language
English
LU publication?
no
id
7e06c801-130f-48ec-8780-19f8cc4cb06b
date added to LUP
2019-05-15 07:35:41
date last changed
2025-10-14 12:57:34
@article{7e06c801-130f-48ec-8780-19f8cc4cb06b,
  abstract     = {{<p>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.</p>}},
  author       = {{Peterson, C. and Schlatter, D. and Schmitt, I. and Zerwas, P. M.}},
  issn         = {{0556-2821}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  pages        = {{105--111}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review D}},
  title        = {{Scaling violations in inclusive e+e- annihilation spectra}},
  url          = {{http://dx.doi.org/10.1103/PhysRevD.27.105}},
  doi          = {{10.1103/PhysRevD.27.105}},
  volume       = {{27}},
  year         = {{1983}},
}