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Title: Baryon spectrum in large N{sub c} chiral soliton and in quark models

Abstract

Strangeness contents of baryons are calculated within the rigid rotator model for arbitrary number of colors N{sub c}. The problem of extrapolation to realistic value N{sub c}=3 is noted, based on explicit calculations and comparison of the rigid rotator and rigid oscillator variants of the model. Some features of exotic baryon spectra ({l_brace}10{r_brace}, {l_brace}27{r_brace}, and {l_brace}35{r_brace}-plets of baryons) obtained in the chiral soliton approach can be understood in terms of simplified quark (4qq) wave functions. The effective mass of strange antiquark in different SU(3) multiplets of pentaquarks should depend on the particular multiplet, to link the predictions of soliton and quark models. The estimate of the 6{sub F} and 3{sub F} diquarks mass difference can be made from comparison with chiral soliton model results for masses of exotic baryons from different SU(3) multiplets. The masses of baryons partners with different values of spin J are also estimated.

Authors:
;  [1]
  1. Institute for Nuclear Research of RAS, Moscow 117312 (Russian Federation)
Publication Date:
OSTI Identifier:
20782993
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.73.094018; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYON SPECTROSCOPY; BARYONS; CHIRAL SYMMETRY; CHIRALITY; COLOR MODEL; COMPARATIVE EVALUATIONS; EFFECTIVE MASS; EXTRAPOLATION; MASS DIFFERENCE; MULTIPLETS; OSCILLATORS; QUARKS; RESONANCE PARTICLES; SOLITONS; SPIN; STRANGENESS; SU-3 GROUPS; WAVE FUNCTIONS

Citation Formats

Kopeliovich, Vladimir B., and Shunderuk, Andrei M.. Baryon spectrum in large N{sub c} chiral soliton and in quark models. United States: N. p., 2006. Web. doi:10.1103/PHYSREVD.73.094018.
Kopeliovich, Vladimir B., & Shunderuk, Andrei M.. Baryon spectrum in large N{sub c} chiral soliton and in quark models. United States. doi:10.1103/PHYSREVD.73.094018.
Kopeliovich, Vladimir B., and Shunderuk, Andrei M.. Mon . "Baryon spectrum in large N{sub c} chiral soliton and in quark models". United States. doi:10.1103/PHYSREVD.73.094018.
@article{osti_20782993,
title = {Baryon spectrum in large N{sub c} chiral soliton and in quark models},
author = {Kopeliovich, Vladimir B. and Shunderuk, Andrei M.},
abstractNote = {Strangeness contents of baryons are calculated within the rigid rotator model for arbitrary number of colors N{sub c}. The problem of extrapolation to realistic value N{sub c}=3 is noted, based on explicit calculations and comparison of the rigid rotator and rigid oscillator variants of the model. Some features of exotic baryon spectra ({l_brace}10{r_brace}, {l_brace}27{r_brace}, and {l_brace}35{r_brace}-plets of baryons) obtained in the chiral soliton approach can be understood in terms of simplified quark (4qq) wave functions. The effective mass of strange antiquark in different SU(3) multiplets of pentaquarks should depend on the particular multiplet, to link the predictions of soliton and quark models. The estimate of the 6{sub F} and 3{sub F} diquarks mass difference can be made from comparison with chiral soliton model results for masses of exotic baryons from different SU(3) multiplets. The masses of baryons partners with different values of spin J are also estimated.},
doi = {10.1103/PHYSREVD.73.094018},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 73,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}