Emergence of pion parton distributions Cui, Z. F. Raya Montaño, Khépani 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. 2022-07-07T10:56:57Z 2022-07-07T10:56:57Z 2022-05-20 journal article Cui, Z. F... [et al.] (2022). Emergence of pion parton distributions. Physical Review D, 105(9), L091502. DOI: [10.1103/PhysRevD.105.L091502] http://hdl.handle.net/10481/75869 10.1103/PhysRevD.105.L091502 eng info:eu-repo/grantAgreement/EC/H2020/824093 http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Physical Society