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PreprintCC BY-NC-ND 4.0arXiv

Towards new D meson fragmentation functions

  • Manuel Epele
  • Felix Hekhorn
  • Ilkka Helenius
  • Hannu Paukkunen
  • Pia Zurita
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Abstract

The Heavy Meson (Hymn) collaboration presents a new extraction of D meson fragmentation functions using experimental data from LEP and LHC. We focus particularly on kinematical regimes where perturbative QCD should be safely applicable to avoid contamination from higher-twist effects which could lead to an apparent process dependence of fragmentation functions. We account for the initial-state radiation and, as a novel ingredient, consider the prompt and non-prompt contributions separately. The analysis is carried out at next-to-leading order accuracy including uncertainty estimation based on Monte-Carlo replica technique. We disucss the exemplary case of D0 here and defer the results for D± and D*,± to a forthcoming publication.

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Cite

BibTeXRIS
BibTeX
@misc{epele2026towards,
  title = {{Towards new D meson fragmentation functions}},
  author = {Manuel Epele and Felix Hekhorn and Ilkka Helenius and Hannu Paukkunen and Pia Zurita},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.10327},
  eprint = {2609.10327},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.10327},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - UNPB
TI  - Towards new D meson fragmentation functions
AU  - Manuel Epele
AU  - Felix Hekhorn
AU  - Ilkka Helenius
AU  - Hannu Paukkunen
AU  - Pia Zurita
PY  - 2026
DA  - 2026/09/09
PB  - arXiv
DO  - 10.48550/arxiv.2609.10327
UR  - https://arxiv.org/abs/2609.10327
AB  - The Heavy Meson (Hymn) collaboration presents a new extraction of D meson fragmentation functions using experimental data from LEP and LHC. We focus particularly on kinematical regimes where perturbative QCD should be safely applicable to avoid contamination from higher-twist effects which could lead to an apparent process dependence of fragmentation functions. We account for the initial-state radiation and, as a novel ingredient, consider the prompt and non-prompt contributions separately. The analysis is carried out at next-to-leading order accuracy including uncertainty estimation based on Monte-Carlo replica technique. We disucss the exemplary case of D^0 here and defer the results for D^± and D^*,± to a forthcoming publication.
ER  -