Magnetic Moment of the $Ω^-$ in QCD sumrule (QCDSR)

Abstract

The $Ω^-$ magnetic moment was measured very accurately and experimentalists remarked that it differs from the theoretical estimates, thus posing a challenge to the latter. One such estimation uses QCDSR. We revisit this sumrule method, using condensate parameters which were obtained from fitting the differences ($μ_p - μ_n$), ($μ_{Σ^+}- μ_{Σ^-}$) and ($μ_{Ξ^0} - μ_{Ξ^-}$) and confirm the experimental number. The $μ_{Δ^{++}}$ is also found to agree with the experimental estimate.