Distribution amplitudes of heavy-light pseudoscalar and vector mesons from Dyson-Schwinger equations framework
We report the first Dyson-Schwinger equation predictions for the leading-twist distribution amplitudes of the *, *, and * mesons, and extend the investigation to a broader set of heavy-light pseudoscalar/vector mesons. Numerical analysis shows that, in flavor-asymmetric systems, the distribution amp...
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| Formato: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/27443 |
| Acesso em linha: | https://hdl.handle.net/10272/27443 |
| Access Level: | acceso abierto |
| Palavra-chave: | Particle interaction Phenomenology Quantum chromodynamics Particle properties 2212 Física Teórica |
| Resumo: | We report the first Dyson-Schwinger equation predictions for the leading-twist distribution amplitudes of the *, *, and * mesons, and extend the investigation to a broader set of heavy-light pseudoscalar/vector mesons. Numerical analysis shows that, in flavor-asymmetric systems, the distribution amplitude is skewed toward the heavier quark, with the position of the maximum ∼/( + ), where is the Euclidean constituent quark mass and , denote the quark flavors. Spin effects are found to be subleading compared to the influence of valence-quark composition, and lead to heavier quarks carrying more light-front momentum in vector mesons than in their pseudoscalar counterparts. Our results can be compared with both experimental and theoretical outcomes in the future. |
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