Contribution to a conference proceedings/Journal Article

FZJ-2015-02954

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png SPECTRUM OF THE EXCITED N* AND Δ* BARYONS IN A RELATIVISTIC CHIRAL QUARK MODEL

TURSUNOV, E. M. (Corresponding Author) ; KREWALD, S.FZJ*

2014
World Scientific Singapore {[u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/8560  doi:10.1142/S2010194514601185

Abstract: The spectrum of the SU(2) flavor baryons is studied in the frame of a relativistic chiral quark potential model based on the one-pion and one-gluon exchange mechanisms. All the N* and Δ* resonances appearing in the πN scattering data are identified with the orbital configurations (1S1/2)2(nlj) with a single excited valence quark. The obtained selection rules allow one to construct a schematic periodic table of baryon resonances, consistent with the experimental data and yielding no "missing resonances". A new original method for the center of mass correction problem of the zero-order three-quark core energy values of the excited baryon resonances is suggested, which is based on the separation of the three-quark Dirac Hamiltonian into the parts, corresponding to the Jacobi coordinates. The numerical estimations for the energy positions of the Nucleon and Delta baryons, obtained within the field-theoretical framework, yield an overall good description of the experimental data at a level of the relativized Constituent quark model.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)

Research Program(s):

1. 531 - Hadron Structure and Dynamics (HSD) (POF2-531) (POF2-531)

Appears in the scientific report 2014

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Database coverage:

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