Quark distribution functions and spin-flavor structures in NΔ transitions

May 22, 2023
15 pages
Published in:
  • Phys.Rev.D 108 (2023) 3, 034024
  • Published: Aug 1, 2023
e-Print:
DOI:
Report number:
  • JLAB-THY-23-3908

Citations per year

202320242025421
Abstract: (APS)
Transition generalized parton distributions have emerged as a novel tool for studying the quantum chromodynamics (QCD) structure of resonances. They provide an integrated picture of the transition form factors and the transition parton distribution functions. In this study, we delve into the angular momentum (AM) properties for the NΔ transition and its decomposition into the orbital angular momentum and the intrinsic spin in the context of the quark distribution functions. First, we explore the spin-flavor structures within the framework of both the overlap representations of the three-quark light-cone wave functions and the large Nc limit of QCD. We then estimate the AM quark distribution functions for the NΔ transition. Our analysis reveals a substantial flavor asymmetry present in both the orbital angular momentum and intrinsic spin components.
Note:
  • 15 pages, 3 figures
  • parton: distribution function
  • quark: distribution function
  • flavor: asymmetry
  • wave function: light cone
  • expansion 1/N: color
  • form factor: transition
  • quantum chromodynamics
  • angular momentum
  • spin
  • generalized parton distribution