Roles of Diquarks in the Nucleon for the Deep Inelastic Scattering and the Non-leptonic Weak Transitions

Details Roles of Diquarks in the Nucleon for the Deep Inelastic Scattering and the Non-leptonic Weak Transitions Roles of Diquarks in the Nucleon for the Deep Inelastic Scattering and the Non-leptonic Weak Transitions

1994-04-06

arxiv.org/abs/hep-ph/9404224v1

Nucl.Phys. A577 (1994) 347-352

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages with 2 figures as uuencoded PostScript files (LaTeX), TMU-NT-940401, talk presented at the International Symposium on

Scientific paper

10.1016/0375-9474(94)90879-6

We study roles of quark-quark correlations in the baryons for the deep inelastic structure function and the ${\Delta}I=1/2$ rule of the non-leptonic weak hyperon decay. The quark-quark correlation is incorporated phenomenologically as diquarks within the Nambu and Jona-Lasinio model. The strong diquark correlations in the spin-0 channel enhance the ${\Delta}I=1/2$ weak matrix elements, and account for the ${\Delta}I=1/2$ rule. The ratio of the nucleon structure functions $F_2^{n}(x)/F_2^{p}(x)$ also comes to agree with experiment due to the diquark correlations.

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