2014/07/31 by Yong-Lu Liu, Chun-Yu Cui, Ming-Qiu Huang
Physics and Astronomy · #Conformal map #Conformal symmetry #Covariant transformation #Distribution (mathematics) #Lambda #Lorentz transformation #Operator product expansion #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum and Classical Electrodynamics #Quantum chromodynamics #Twist #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-014-3041-x
published as Eur. Phys. J. C (2014) 74:3041 · 17pages,10figures. arXiv admin note: text overlap with arXiv:1311.5960
openalex publication_date 2014/09/01 · arxiv created 2014/09/15 · arxiv updated 2014/09/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The improved light-cone distribution amplitudes (LCDAs) of the Λ baryon are examined on the basis of the QCD conformal partial wave expansion approach. The calculations are carried out to the next-to-leading order of conformal spin accuracy with consideration of twist 6 . The next leading order conformal expansion coefficients are related to the nonperturbative parameters defined by the local three-quark operator matrix elements with different Lorentz structures with a covariant derivative. The nonperturbative parameters are determined with the QCD sum rule method. The explicit expressions of the LCDAs are provided as the main results.