An improved light-cone harmonic oscillator model for the $\varphi$-meson longitudinal leading-twist light-cone distribution amplitude

Dan-Dan Hu, Xing-Gang Wu, Long Zeng +2

In the present paper, we study the properties of $\varphi$-meson longitudinal leading-twist light-cone distribution amplitude ${\varphi }_{2;\varphi }^{\Vert }(x,\mu )$ by starting from a light-cone harmonic o…