Fragmentation of charmed quark to double-charmed hadrons

Autor: S. P. Baranov, B. Z. Kopeliovich
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 81, Iss 5, Pp 1-7 (2021)
Druh dokumentu: article
ISSN: 1434-6044
1434-6052
DOI: 10.1140/epjc/s10052-021-09172-y
Popis: Abstract We consider the production of hadrons containing two charmed quarks in pp and ee collisions. We perform a numerical comparison of the fragmentation approach with the full calculation at $${{{\mathcal {O}}}}(\alpha _s^4)$$ O ( α s 4 ) . We conclude that the non-fragmentation contributions remain important up to transverse momenta as large as about 40 GeV, thus making questionable the applicability of the fragmentation approximation at smaller transverse momenta.
Databáze: Directory of Open Access Journals
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