2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189295We discuss the form and construction of general color singlet heavy particle-antiparticle pair production currents for arbitrary quantum numbers, and issues related to evanescent spin operators and scheme-dependences in nonrelativistic QCD (NRQCD) in n=3-2epsilon dimensions. The anomalous dimensions of the leading interpolating currents for heavy quark and colored scalar pairs in arbitrary (2S+1)L_J angular-spin states are determined at next-to-leading order in the nonrelativistic power counting.39 pages, 2 tables, 10 figures; typos corrected, published versionHigh Energy Physics - Phenomenologytext