Magnetic moments of bottom baryons: Effective mass and screened charge

Abstract

We calculate the magnetic moments of low-lying heavy-flavor bottom baryons using effective quark mass and shielded quark charge scheme. We obtain the magnetic moments of both J P ¼ 1 2 þ and J P ¼ 3 2 þ baryon states. We compare our predictions with other theoretical approaches.

Magnetic dipole moments of the spin-$$\frac{3}{2}$$ doubly heavy baryons

“…[39,40,59] and different from other results. For the the Ξ * + bc baryon, we see that within errors our predictions in good agreement with the Refs [22,59,63,64,74]. For the Ξ * 0 bc baryon, while the sign of the magnetic dipole moment is correctly determined, there is a large discrepancy among results.…”

Magnetic moments ofΞQ′−ΞQtransitions in light cone QCD

“…As far as the Ξ 00 c -Ξ 0 c transition is concerned, our result confirms the prediction of [19]-it is approximately 1.5 times smaller than that of [22], two times Q -Ξ 0 Q transition magnetic moments predicted by the light cone QCD sum rules (our result), effective quark mass scheme [18,19], screened quark charge scheme [18,19], bag model [20], nonrelativistic quark model [21], and chiral constituent quark model [22] approaches in units of nuclear magneton μ N . The first (second) column of [18] ( [19]) corresponds the effective quark mass (screened quark charge) scheme. larger than that of [21] and 10 times larger than the results predicted in [20].…”

“…We see from these figures that the working region for β in the b-baryon case is −0.5 ≤ cos θ ≤ −0.1, and for the baryons containing c-quark, it is −0.4 ≤ cos θ ≤ 0.1. We deduce from these figures the following values for the Ξ 00 Q -Ξ 0 Q transition magnetic moments: μ Ξ 00 Table 1 we present our results on the transition magnetic moments together with the ones predicted by different approaches, such as the effective quark mass and screened quark charge scheme (for the b-hadron sector see [18], for the c-hadron sector see [19]), bag model [20], nonrelativistic quark model [21], and chiral constituent quark model [22].…”

Electromagnetic dipole moments of charged baryons with bent crystals at the LHC

“…Theoretical predictions of g −2 for the Λ + c and Ξ + c baryons range between −0.64 and 0.22 [5,54], thus a central value g = (g − 2)/2 = −0.3 is considered. For Ξ + b and Ω + b antibaryons we take effective quark mass MDM calculations [6]. For all strange baryons under consideration there exist measurements [4].…”