Leading-twist parton distribution amplitudes of S-wave heavy-quarkonia

Minghui Ding, Fei Gao, Lei Chang +2

The leading-twist parton distribution amplitudes (PDAs) of ground-state ${}^1{S}_0$ and ${}^3{S}_1$ $c\bar{c}$- and $b\bar{b}$-quarkonia are calculated using a symmetry-preserving continuum…