Precision Measurement of theΩ−Magnetic Moment

Relativistic quark model for theΩ−electromagnetic form factors

“…[47] for the Ω − magnetic dipole form factor at Q 2 = 0.230 GeV 2 , extracted from the simulation for the ∆ − at the pion mass m π = 697 MeV: G M1 (Q 2 ) = −2.36 ± 0.11. The experimental value (used in our calibration) which gives G M1 (0) = µ Ω − MΩ MN = −3.60 ± 0.10 with µ Ω − in units µ N [14], is also presented in the graph. In addition, there are unquenched lattice data at Q 2 = 0 from Aubin et al [46]: G M1 (0) = −3.44 ± 0.14, and the extrapolation from the Ref.…”

“…Only the variables in bold were adjusted in this work; the others were previously determined from fits to the nucleon form factors and γN → ∆ transitions. The adjusted variables are: κs, fixed by the experimental result for µ Ω − [14]; c0, d0, and α2, fixed by the fit to the lattice data [47] shown in Fig. 1.…”

“…The result was µ Ω − = (−1.94 ± 0.22)µ N . The most recent measurement is from 1995 and gives µ Ω − = (−2.024 ± 0.056)µ N [14]. The combination of the two results leads to µ Ω − = (−2.019 ± 0.054)µ N [1,14].…”

“…The most recent measurement is from 1995 and gives µ Ω − = (−2.024 ± 0.056)µ N [14]. The combination of the two results leads to µ Ω − = (−2.019 ± 0.054)µ N [1,14]. Several works followed with estimations of µ Ω − [15,16,17,18,19,20,21,22,23,24,25,26,27,28,29].…”

Magnetic moments of decuplet baryons in light cone QCD

“…Note that in [10], from the decuplet baryons, only the magnetic moments of ∆ ++ and Ω − were calculated. At present, the magnetic moments of ∆ ++ [12], ∆ 0 [13] and Ω − [14] are known from experiments. The experimental information provides new incentives for theoretical scrutiny of these physical quantities.…”