Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-05-23
Phys.Rev.D72:074009,2005
Physics
High Energy Physics
High Energy Physics - Phenomenology
25 pp., 11 figs, minor corrections
Scientific paper
10.1103/PhysRevD.72.074009
In the Relativistic Mean Field Approximation three quarks in baryons from the lowest octet and the decuplet are bound by the self-consistent chiral field, and there are additional quark-antiquark pairs whose wave function also follows from the mean field. We present a generating functional for the 3-quark, 5-quark, 7-quark ... wave functions inside the octet, decuplet and antidecuplet baryons treated in a universal and compact way. The 3-quark components have the SU(6)-symmetric wave functions but with specific relativistic corrections which are generally not small. In particular, the normalization of the 5-quark component in the nucleon is about 50% of the 3-quark component. We give explicitly 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-quark Fock components of baryons, and apply it to estimate the Theta+ width which turns out to be very small, 2-4 MeV, although with a large uncertainty.
Diakonov Dmitri
Petrov Victor
No associations
LandOfFree
Estimate of the Theta+ width in the Relativistic Mean Field Approximation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Estimate of the Theta+ width in the Relativistic Mean Field Approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Estimate of the Theta+ width in the Relativistic Mean Field Approximation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-559920