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Matching functions for heavy particles
S. D. Bass, R. J. Crewther, F. M. Steffens +1
We introduce matching functions as a means of summing heavy-quark logarithms to any order. Our analysis is based on Witten's approach, where heavy quarks are decoupled one at a tim…
Transverse Momentum in Semi-Inclusive Polarized Deep Inelastic Scattering and the Spin-Flavor Structure of the Proton
Steven D. Bass
The non-valence spin-flavor structure of the nucleon extracted from semi-inclusive measurements of polarized deep inelastic scattering depends strongly on the transverse momentum o…
Manifestations of anomalous glue: light-mass exotic mesons and the eta-prime nucleon coupling constant
Steven D. Bass
The light-mass exotics with J^{PC}=1^{-+} observed at BNL and CERN may have a simple explanation as dynamically generated resonances in eta-prime pi rescattering in the final state…
Heavy-quark axial charges to non-leading order
S. D. Bass, R. J. Crewther, F. M. Steffens +1
We combine Witten's renormalization group with the matching conditions of Bernreuther and Wetzel to calculate at next-to-leading order the complete heavy-quark contribution to the…