Charmonia production from $b$-hadron decays at LHC with $k_T$-factorization: $J/\psi$, $\psi (2S)$ and $J/\psi +Z$

A. V. Lipatov, S. P. Baranov, H. Jung +1

We consider the production of $J/\psi$ and $\psi (2S)$ mesons originating from the decays of $b$-flavored hadrons at the LHC using the $k_T$-factorization approach. Our analysis covers bo…