Production of $η_Q$ meson at LHC

Abstract

The paper is devoted to theoretical consideration of inclusive $η_{c,b}$ meson production at LHC. It is shown that existing experimental data on $η_c$ meson production at LHCb detector can be described in the framework of NRQCD formalism and color-singlet component with phenomenological value of matrix element $|R(0)|^2$ gives main contribution. Using this model we present theoretical prediction for integrated cross sections and transverse momentum distributions for inclusive $η_c$ production at other LHC detectors. The case of $η_b$ meson production at LHC is also considered.