Measurement of the transition form factor

B Aubert, Y Karyotakis, JP Lees, V Poireau… - Physical Review D …, 2009 - APS
We study the reaction e+ e-→ e+ e-π 0 in the single tag mode and measure the differential
cross section d σ/d Q 2 and the γ γ*→ π 0 transition form factor in the momentum transfer …

Pion distribution amplitude from lattice QCD

JH Zhang, JW Chen, X Ji, L **, HW Lin - Physical Review D, 2017 - APS
We present the first lattice-QCD calculation of the pion distribution amplitude using the large-
momentum effective field theory (LaMET) approach, which allows us to extract light cone …

Light-cone distribution amplitudes of pseudoscalar mesons from lattice QCD

GS Bali, VM Braun, S Bürger, M Göckeler… - Journal of High Energy …, 2019 - Springer
A bstract We present the first lattice determination of the two lowest Gegenbauer moments of
the leading-twist pion and kaon light-cone distribution amplitudes with full control of all …

Pion and kaon distribution amplitudes from lattice QCD

J Hua, MH Chu, FC He, JC He, X Ji, A Schäfer, Y Su… - Physical Review Letters, 2022 - APS
We present a state-of-the-art lattice QCD calculation of the pion and kaon light-cone
distribution amplitudes (DAs) using large-momentum effective theory. The calculation is …

Pion valence quark distributions in asymmetric nuclear matter at finite temperature

S Puhan, N Kaur, A Kumar, S Dutt, H Dahiya - Physical Review D, 2024 - APS
We have calculated the valence quark distributions of the lightest pseudoscalar meson,
pions, in the isospin asymmetric nuclear matter at zero and finite temperature employing a …

Consistency of the pion form factor and unpolarized transverse momentum dependent parton distributions beyond leading twist in the light-front quark model

HM Choi, CR Ji - Physical Review D, 2024 - APS
We investigate the interplay among the pion's form factor, transverse momentum dependent
distributions (TMDs), and parton distribution functions (PDFs) extending our light-front quark …

Pseudoscalar meson decay constants and distribution amplitudes up to the twist-4 in the light-front quark model

AJ Arifi, HM Choi, CR Ji - Physical Review D, 2023 - APS
In the light-front quark model (LFQM) amenable to the simultaneous study of both the mass
spectroscopy and the wave function related observables, we examine the decay constants …

Evolved QCD predictions for the meson-photon transition form factors

SJ Brodsky, FG Cao, GF de Téramond - Physical Review D—Particles, Fields …, 2011 - APS
The QCD evolution of the pion distribution amplitude (DA) ϕ π (x, Q 2) is computed for
several commonly used models. Our analysis includes the nonperturbative form predicted …

Shape of pion distribution amplitude

AV Radyushkin - Physical Review D—Particles, Fields, Gravitation, and …, 2009 - APS
A scenario is investigated in which the leading-twist pion distribution amplitude φ π (x) is
approximated by the pion decay constant f π for all essential values of the light-cone fraction …

Generalized parton distributions of the pion in chiral quark models and their QCD evolution

W Broniowski, ER Arriola, K Golec-Biernat - Physical Review D—Particles …, 2008 - APS
We evaluate generalized parton distributions of the pion in two chiral quark models: the
spectral quark model and the Nambu–Jona-Lasinio model with a Pauli-Villars …