On the Flavor Structure of the Constituent Quark

Details On the Flavor Structure of the Constituent Quark On the Flavor Structure of the Constituent Quark

1996-09-19

arxiv.org/abs/nucl-th/9609042v1

J.Phys.G22:1741-1750,1996

Physics

Nuclear Physics

Nuclear Theory

7 pages, LaTeX, 4 Postscript figures, to appear in J. Phys. G

Scientific paper

10.1088/0954-3899/22/12/004

We discuss the dressing of constituent quarks with a pseudoscalar meson cloud within the effective chiral quark model. SU(3) flavor symmetry breaking effects are included explicitly. Our results are compared with those of the traditional meson cloud approach in which pions are coupled to the nucleon. The pionic dressing of the constituent quarks explains the experimentally observed violation of the Gottfried Sum Rule and leads to an enhanced nonperturbative sea of quark-antiquark pairs in the constituent quark and consequently in the nucleon. We find 2.5 times more pions and 10-15 times more kaons in the nucleon than in the traditional picture.

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