Exclusive production of P-wave charmonia through two virtual photons in electron-positron annihilation

Avinash Okram, Shashank Bhatnagar

We present a relativistic study of the exclusive double-charmonium processes $e^{-}{e}^{+}\to {\gamma }^{\ast }{\gamma }^{\ast }\to {\chi }_{c1}+{\eta }_c$ and $e^{-}{e}^{+}\to {\gamma }^{\ast }{\gamma }^{\ast }\to h_c+h_c$ at $\sqrt{s}=10.6$ GeV in the fr…