Higher Hybrid Bottomonia in an Extended Potential Model

TL;DR

This paper extends a quark potential model to calculate properties of hybrid bottomonium mesons, including masses, decay widths, and transitions, aligning well with lattice QCD results and experimental data.

Contribution

The study introduces an extended potential model for hybrid mesons, providing detailed calculations of bottomonium properties and identifying specific experimental states.

Findings

Calculated masses and decay widths match experimental data.

Identified specific bottomonium states such as $$ and $Y_b(10890)$.

Provided predictions for hybrid meson properties.

Abstract

Using our extension of the quark potential model to hybrid mesons that fits well to the available lattice results, we now calculate the masses, radii, wave functions at origin, leptonic and two photon decay widths, E1 and M1 radiative transitions for a significant number of bottomonium mesons. These mesons include both conventional and hybrid ones with radial and angular excitations. Our numerical solutions of the Schrodinger equation are related to QCD through the Born-Oppenheimer approach. Relativistic corrections in masses and decay widths are also calculated by applying the leading order perturbation theory. The calculated results are compared with available experimental data and the theoretical results by other groups. We also identify the states of $\Upsilon(10860)$, $\Upsilon(11020)$, and $Y_b(10890)$ mesons by comparing their experimental masses and decay widths with our results.