Parts | Days | Selection | Search | Downloads | Help
T: Fachverband Teilchenphysik
T 406: Flavour Theorie I
T 406.7: Talk
Thursday, March 8, 2007, 18:15–18:30, KIP SR 2.401
Heavy Pair Production Currents with General Quantum Numbers in Dimensionally Regularized NRQCD — André Hoang and •Pedro Ruiz-Femenía — Max-Planck-Institut fuer Physik, Muenchen
We 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=3−2 є dimensions. The anomalous dimensions of the leading interpolating currents for heavy quark and colored scalar pairs in arbitrary (2S+1)LJ angular-spin states are determined at next-to-leading order in the nonrelativistic power counting.