BOEFT quantifies threshold-induced shifts in quarkonium masses below threshold by solving coupled Schrödinger equations using lattice potentials and one parameter fixed to the χ_c1(3872) mass.
The meson mass can be expressed in the heavy-quark expansion asm M(∗) =m Q + Λ¯q+O(1/m Q) with Λ ¯qbeing the binding energy and light quark mass contribution in the static limit
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Open-flavor threshold effects on quarkonium spectrum in the BOEFT
BOEFT quantifies threshold-induced shifts in quarkonium masses below threshold by solving coupled Schrödinger equations using lattice potentials and one parameter fixed to the χ_c1(3872) mass.