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In the Relativistic Mean Field Approximation three quarks in baryons from thelowest octet and the decuplet are bound by the self-consistent chiral field,and there are additional quark-antiquark pairs whose wave function also followsfrom the mean field. We present a generating functional for the 3-quark,5-quark, 7-quark ... wave functions inside the octet, decuplet and antidecupletbaryons treated in a universal and compact way. The 3-quark components have theSU(6)-symmetric wave functions but with specific relativistic corrections whichare generally not small. In particular, the normalization of the 5-quarkcomponent in the nucleon is about 50% of the 3-quark component. We giveexplicitly the 5-quark wave functions of the nucleon and of the exotic Theta+.We develop a formalism how to compute observables related to the 3- and 5-quarkFock components of baryons, and apply it to estimate the Theta+ width whichturns out to be very small, 2-4 MeV, although with a large uncertainty.Comment: 25 pp., 11 figs, minor correction

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Estimate of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>Θ</mml:mi><mml:mo>+</mml:mo></mml:msup></mml:math>width in the relativistic mean field approximation

Estimate of theΘ+width in the relativistic mean field approximation