Emergence of pion parton distributions
Metadatos
Mostrar el registro completo del ítemEditorial
American Physical Society
Fecha
2022-05-20Referencia bibliográfica
Cui, Z. F... [et al.] (2022). Emergence of pion parton distributions. Physical Review D, 105(9), L091502. DOI: [10.1103/PhysRevD.105.L091502]
Patrocinador
National Natural Science Foundation of China (NSFC) 12135007 11805097; Helmholtz-Zentrum Dresden-Rossendorf High Potential Programme; Spanish Government; European Commission PID2019-107844GB-C22; Junta de Andalucia P18-FR-5057 UHU-1264517 UHU EPIT-2021; STRONG-2020 "The strong interaction at the frontier of knowledge: fundamental research and applications" from the European Union's Horizon 2020 research and innovation programme 824093Resumen
Supposing only that there is an effective charge which defines an evolution scheme for parton
distribution functions (DFs) that is all-orders exact, strict lower and upper bounds on all Mellin moments of
the valence-quark DFs of pionlike systems are derived. Exploiting contemporary results from numerical
simulations of lattice-regularized quantum chromodynamics (QCD) that are consistent with these bounds,
parameter-free predictions for pion valence, glue, and sea DFs are obtained. The form of the valence-quark
DF at large values of the light-front momentum fraction is consistent with predictions derived using the
QCD-prescribed behavior of the pion wave function.