The leading twist light-cone distribution amplitudes for the S-wave and P-wave Bc mesons

Abstract

The light-cone distribution amplitudes (LCDAs) serve as important non-perturbative inputs for the study of hard exclusive processes. In this paper, we calculate ten LCDAs at twist-2 for the S-wave and P-wave $B_c$ mesons up to the next-to-leading order (NLO) of the strong coupling ${\alpha }_s$ and leading order of the velocity expansion. Each one of these ten LCDAs is expressed as a product of a perturbatively calculable distribution and a universal NRQCD matrix-element. By use of the spin symmetry, only two NRQCD matrix-elements will be involved. The reduction of the number of non-perturbative inputs will improve the predictive power of collinear factorization.

20 pages, no figure. Match to the published version in JHEP

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Cited by in corpus (6)

• Parton Distribution Functions of Heavy Mesons on the Light Front
• Relativistic corrections to light-cone distribution amplitudes of S-wave $B_c$ mesons and heavy quarkonia
• Heavy quark expansion for heavy-light light-cone operators
• A factorization theorem connecting the light-cone distribution amplitudes of heavy-flavor mesons in QCD and HQET
• The relativistic corrections to the fragmentation functions for a heavy quark to $B_c$ and $B_c^{\ast }$
• Exclusive production of $B_c$ mesons in $e^{+}{e}^{-}$ colliders