TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysProc.8.063
TI  - Nucleon and pion PDFs: large-x asymptotics meets functional mimicry
PY  - 2022/07/12
UR  - https://scipost.org/SciPostPhysProc.8.063
JF  - SciPost Physics Proceedings
JA  - SciPost Phys. Proc.
VL  - 
IS  - 8
SP  - 063
A1  - Courtoy, Aurore
AU  - Nadolsky, Pavel
AB  - We review strategies to unveil the primordial large-$x$ structure of the nucleons as well as the pion from hard-scattering experiments. Ideas are presented for learning about the $x\to 1$ limit of nonperturbative QCD dynamics at energy scales of order 1 GeV from collider experiments at much higher scales. The behavior of parton distributions at $x\to 1$ predicted by the quark counting rules and other low-energy theoretical approaches is contrasted with phenomenological PDFs. Polynomial mimicry of PDF parametrizations is one of many factors that influence the apparent power of the $(1-x)$ falloff. We discuss implications of the mimicry for the large-$x$ falloff of the pion PDFs.
ER  -

@Article{10.21468/SciPostPhysProc.8.063,
	title={{Nucleon and pion PDFs: large-x asymptotics meets functional mimicry}},
	author={Aurore Courtoy and Pavel M. Nadolsky},
	journal={SciPost Phys. Proc.},
	pages={063},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhysProc.8.063},
	url={https://scipost.org/10.21468/SciPostPhysProc.8.063},
}