Nonperturbative photon $q\bar{q}$ light front wave functions from a contact interaction model

Chao Shi, Zhongtian Yang, Xurong Chen +3

We propose a method to calculate the $q\bar{q}$ light front wave functions (LFWFs) of photon at low-virtuality, i.e., the light front amplitude of ${\gamma }^{\ast }\to q\bar{q}$ at low…