Implications of Configuration Mixing in The Chiral Quark Model With SU(3) and Axial U(1) Breakings for Nucleon Spin-Flavor Structure

Details Implications of Configuration Mixing in The Chiral Quark Model With SU(3) and Axial U(1) Breakings for Nucleon Spin-Flavor Structure Implications of Configuration Mixing in The Chiral Quark Model With SU(3) and Axial U(1) Breakings for Nucleon Spin-Flavor Structure

2000-09-07

arxiv.org/abs/hep-ph/0009076v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages and 3 tables

Scientific paper

The implications of Chiral Quark Model with SU(3) and axial U(1) symmetry breakings as well as configuration mixing generated by one gluon exchange forces ($\chi$QM$_{gcm}$) are discussed in context of proton flavor and spin structure as well as hyperon $\beta$-decay data. Apart from reproducing the success of $\chi$QM with symmetry breaking, it is able to improve upon the agreement with data in several cases such as, $G_A/G_V, \Delta_8, $ dependent on spin polarization functions and ($\frac{2 \bar s}{u+d}$), ($\frac{2 \bar s}{\bar u+\bar d}$) and f_s involving the quark distribution functions.

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