Ultraviolet divergences and evolution in weighted transverse moments
ORAL
Abstract
I will discuss the problem of ultraviolet divergences in the definitions of cross sections weighted by transverse momentum. A common integral relation connecting certain types of TMD pdfs to twist-3 collinear correlation function will be shown to receive unsuppressed corrections. I will explain how this is connected to questions about the form of QCD evolution appropriate for transversely weighted observables.
*Supported by the U.S. De- partment of Energy, Office of Science, Office of Nuclear Physics, under Award Number DE-SC0018106, and by the U.S. Department of Energy contract DE-AC05-06OR23177, under which Jefferson Science Associates, LLC, manages and operates Jefferson Lab.
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