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hep-ph2026
Heavy and heavy-light mesons with arbitrary spin and parity in the Covariant Spectator Theory
Alfred Stadler, Elmar P. Biernat
This work generalizes the one-channel Covariant Spectator Theory (CST) formalism to describe quark-antiquark mesons of arbitrary spin-parity . We also improve the quark-antiqu…
hep-ph2025
Simple high-accuracy method for solving bound-state equations with the Cornell potential in momentum space
Alfred Stadler, Elmar P. Biernat, Vasco Valverde
The well-known Cornell quark-antiquark potential in momentum space contains singularities both in its one-gluon-exchange (OGE) and linear confining parts, which prevents a direct u…