Relativistic corrections to light-cone distribution amplitudes of S-wave Bc mesons and heavy quarkonia

B meson
DOI: 10.1007/jhep12(2017)012 Publication Date: 2017-12-02T11:07:42Z
ABSTRACT
In collinear factorization, light-cone distribution amplitudes (LCDAs) are key ingredients to calculate the production rate of a hadron in high energy exclusive processes. For doubly-heavy meson system (such as B c , J/ψ, Y etc), LCDAs contain perturbative scales that can be integrated out and then re-factorized into products perturbatively calculable parts non-relativistic QCD matrix elements. this re-factorization scheme, known at next-to-leading order strong coupling constant α s leading velocity expansion. work, we $$ \mathcal{O}\left({v}^2\right) corrections twist-2 S-wave mesons. These results applicable heavy quarkonia like η c,b J/ψ by setting m b = . We apply these relativistically corrected study their inverse moments few Gegenbauer which important for phenomenological study. point relativistic sizable, comparable with radiative corrections. useful future theoretical analyses productions
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (54)
CITATIONS (23)