Production of $\chi_{b}$-mesons at LHC

TL;DR

This paper analyzes the production of P-wave bottomonium states at LHC energies using NLO calculations within color octet and singlet models, providing predictions for production ratios and transverse momentum distributions.

Contribution

It offers the first NLO analysis of P-wave bottomonium production at LHC, including detailed transverse momentum distributions and excitation state ratios.

Findings

Ratios of bottomonium to charmonium states vary with p_T.

Predictions for production cross section ratios of radial excitations.

Transverse momentum distributions are characterized for $ ext{chi}_{b}$ states.

Abstract

In the present paper, we discuss the $P$-wave bottomonium production within the both color octet and color singlet models in NLO at LHC energies. We calculate the production and the transverse momentum distributions of the $\chi_{1,2b}$ states. We found, that the ratios of bottomonium and charmonium spin states are fundamentally complementary at different $p_T$ scales. We give predictions for the ratio of the $n=2$ and $n=1$ radial excitations production cross sections.