Theoretical Uncertainties in Gammasl(b->u)
Abstract
I review the existing theoretical uncertainties in relating the semileptonic decay width in b->u transitions to the underlying Kobayashi-Maskawa mixing element |Vub|. The theoretical error bars are only a few percent in |Vub|, with uncertainties from the impact of the nonperturbative effects nearly negligible.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.