Mass and Decay-Constant Evolution of Heavy Quarkonia and $B_c$ States from Thermal QCD Sum Rules

Enis Yazici

We analyze the thermal behavior of heavy vector and axial-vector mesons ($J/\ddot{I}ˆ$, $\hat{I}\yen$, and $B_c$) within the finite-temperature QCD sum-rule framework. Using updated PDG-2024 quark…