Extraction of Various Five-Quark Components of the Nucleons
May, 2011Citations per year
Abstract: (Elsevier)
We have generalized the approach of Brodsky et al. for the intrinsic charm quark distribution in the nucleons to the light-quark sector involving intrinsic u¯,d¯,s and s¯ sea quarks. We compare the calculations with the existing d¯−u¯ , s+s¯ , and u¯+d¯−s−s¯ data. The good agreement between the theory and the data allows the extraction of the probabilities for the |uuduu¯〉 , |uuddd¯〉 , and |uudss¯〉 five-quark Fock states in the proton. We also calculate the x -dependence of the intrinsic charm after taking into consideration the QCD evolution of the intrinsic quark distribution.Note:
- 4 pages, 4 figures/ version published/ Wrong page number of Ref. [3] is corrected
- Nucleon structure
- Five-quark states
- Intrinsic sea quark
- quark: sea
- nucleon: wave function
- charm
- Fock space
- multiquark
- quantum chromodynamics
- numerical calculations
References(23)
Figures(4)