Fragmentation of charmed quark to double-charmed hadrons

Fragmentation of charmed quark to double-charmed hadrons

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 O ( α s 4 ) . We conclude that the non-fragmentation contributions remain important up to transverse momenta as la...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2021-05, Vol.81 (5), p.1-7, Article 379
Hauptverfasser: Baranov, S. P., Kopeliovich, B. Z.
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
Astronomy
Astrophysics and Cosmology
Charm (particle physics)
Collisions (Nuclear physics)
Elementary Particles
Fragmentation
Hadrons
Heavy Ions
Kinematics
Measurement Science and Instrumentation
Nuclear Energy
Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quarks
Regular Article - Theoretical Physics
String Theory
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Beschreibung
Zusammenfassung: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 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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-021-09172-y