Chiral excitations of open-beauty systems

We study the scattering of open-beauty mesons and Goldstone bosons as predicted by the chiral SU(3) Lagrangian. The impact of subleading-order chiral interactions to systems with J(P) = 0(+) and J(P) = 1(+) quantum numbers is worked out. We estimate the relevant low-energy coefficients from the open-charm sector, for which their values have been determined previously from sets of QCD lattice data. The leading-order heavy-quark symmetry-breaking effects are estimated by matching the B-meson ground-state chiral mass formula to the mass formula from the heavy-quark effective theory. We make refined predictions for the flavor antitriplet and sextet resonances that are generated dynamically by coupled-channel interactions.

Automated summary

This study investigates the scattering of open-beauty mesons and Goldstone bosons using the chiral SU(3) Lagrangian, considering the impact of subleading-order chiral interactions on systems with specific quantum numbers. The relevant low-energy coefficients are estimated from the open-charm sector, and the leading-order heavy-quark symmetry-breaking effects are approximated by matching different mass formulas. Refined predictions are made for flavor antitriplet and sextet resonances generated dynamically by coupled-channel interactions.