Proton and pion distribution functions in counterpoint
arXiv:2203.00753 · doi:10.1016/j.physletb.2022.137130
Abstract
Working with proton and pion valence distribution functions (DFs) determined consistently at the same, unique hadron scale and exploiting the possibility that there is an effective charge which defines an evolution scheme for DFs that is all-orders exact, we obtain a unified body of predictions for all proton and pion DFs - valence, glue, and four-flavour-separated sea. Whilst the hadron light-front momentum fractions carried by identifiable parton classes are the same for the proton and pion at any scale, the pointwise behaviour of the DFs is strongly hadron-dependent. All calculated distributions comply with quantum chromodynamics constraints on low- and high- scaling behaviour and, owing to emergent hadron mass, pion DFs are the most dilated. These results aid in elucidating the sources of similarities and differences between proton and pion structure.
8 pages, 4 figures, 2 tables
References in corpus (16)
- Soft-Gluon Resummation and the Valence Parton Distribution Function of the Pion
- Distribution Functions of the Nucleon and Pion in the Valence Region
- Natural constraints on the gluon-quark vertex
- The Asymmetry of Antimatter in the Proton
- Empirical Consequences of Emergent Mass
- Parton distribution amplitudes of light vector mesons
- Emergent Hadron Mass in Strong Dynamics
- Concerning pion parton distributions
- Emergence of pion parton distributions
- Flavor decomposition of the nucleon unpolarized, helicity and transversity parton distribution functions from lattice QCD simulations
- Testing momentum dependence of the nonperturbative hadron structure in a global QCD analysis
- Parton distributions of light quarks and antiquarks in the proton
- Gluon distributions and their applications to Ioffe-time distributions
- Distribution amplitudes of light diquarks
- Femtoscopy of the Origin of the Nucleon Mass
- Lattice Nucleon Isovector Unpolarized Parton Distribution in the Physical-Continuum Limit