Work

Charm and strange meson fragmentation functions

Year: 2026

Type: article

Abstract: Quark fragmentation functions describe the hadronization process of a quark where any of the final-state hadrons carries a fraction of its initial momentum. We compute these fragmentation functions for a cascade that includes pions, kaons, and the charmed $D$ and $D_s$ mesons, starting from the elementary quark-to-meson fragmentation process. The latter is obtained from the relevant cut diagram, and employs Poincaré covariant Bethe-Salpeter wave functions and quark propagators. We derive a set of twenty-five coupled jet equations that describe the cascade of emitted mesons in the fragmentation process. Their solutions yield full fragmentation functions that offer a consistent picture of the quark fragmentations across the light and heavy sectors.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/nlvv-rrfp

Authors: Roberto C. da Silveira, Ian C. Cloët, Bruno El-Bennich, Fernando E. Serna

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: G2823776494, G3232207076, G6191138830, Hadron's constituent structure and tomography

OpenAlex ID: W7130436600

FWCI:

Cites:

Cited by:

Related to: