Basis light front quantization for the charged light mesons with color singlet Nambu--Jona-Lasinio interactions

Understand

We apply the basis light front quantization (BLFQ) approach to describe the valence structures of the charged light meson ground states.

• Specifically, the light front wavefunctions of $\pi^\pm$, $\rho^\pm$, $K^\pm$, and $K^{*\pm}$ are obtained as the eigenvectors of the light front effective Hamiltonians with confinement potentials supplemented by the color singlet Nambu--Jona-Lasinio (NJL) interactions.
• We adjust our model such that the spectrum of these ground states and the charge radii of the pseudoscalar states agree with experimental results.
• We present the elastic form factors and parton distribution amplitudes (PDAs) as illustrations of the internal structures of the pseudoscalar pions and kaons in terms of valence quarks.