Charge Radii and Quadrupole Moments of the Low-Lying Baryons in the Chiral Constituent Quark Model

Table 10

Quadrupole moments of the spin (3/2)⁺ decuplet baryons in 𝜒CQM using GPM and SU(3) symmetry breaking.

							𝜒CQM with SU(3)
Baryon	NQM fm^2	CQM [84]	𝜒PT [99–103]	SRA [89, 90]	Skyrme [91, 92]	GPM [93, 94]	Symmetry	Symmetry breaking
		10^−2 fm^2	10^−1 fm^2	10^−1 fm^2	10^−2 fm^2	fm^2	fm^2	fm^2
Δ^++	−0.409	−9.3	−0.8±0.5	−0.87	−8.8	−0.12	−0.3437	−0.3695
Δ^+	−0.204	−4.6	−0.3±0.2	−0.31	−2.9	−0.06	−0.1719	−0.1820
Δ^0	0.0	0.0	0.12±0.05	0.24	2.9	0.0	0.0	0.0055
Δ^−	0.204	4.6	0.6±0.3	0.80	8.8	0.06	0.1719	0.1930
Σ^∗+	−0.204	−5.4	−0.7±0.3	−0.42	−7.1	−0.069	−0.1719	−0.1808
Σ^∗−	0.204	4.0	4.0±0.2	0.52	7.1	0.039	0.1719	0.1942
Σ^∗0	0.0	−0.7	−0.13±0.07	0.05	0.0	0.014	0.0	0.0067
Ξ^∗0	0.0	−1.3	−0.35±0.2	−0.07	−4.6	−0.1719	0.0	0.0079
Ξ^∗−	0.204	3.4	0.2±0.1	0.35	4.6	0.024	0.1719	0.1954
Ω^−	0.204	2.8	0.09±0.05	0.24	0.0	0.014	0.1719	0.1966