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

TL;DR

This paper systematically calculates the magnetic moments of spin-3/2 doubly heavy baryons using heavy baryon chiral perturbation theory, providing numerical results up to next-to-leading order and extending to other doubly heavy baryons.

Contribution

It offers the first systematic chiral correction calculations for magnetic moments of spin-3/2 doubly heavy baryons up to next-to-next-to-leading order.

Findings

Magnetic moments of doubly charmed baryons are numerically estimated.

Magnetic moments of doubly bottom and bottom-charmed baryons are also calculated.

Results provide theoretical predictions for future experimental verification.

Abstract

In this work, we investigate the chiral corrections to the magnetic moments of the spin-$3\over 2$ doubly charmed baryons systematically up to next-to-next-to-leading order with the heavy baryon chiral perturbation theory. The numerical results are given up to next-to-leading order: $\mu_{\Xi^{*++}_{cc}}=1.72\mu_{N}$, $\mu_{\Xi^{*+}_{cc}}=-0.09\mu_{N}$, $\mu_{\Omega^{*+}_{cc}}=0.99\mu_{N}$. As a by-product, we have also calculated the magnetic moments of the spin-$3\over 2$ doubly bottom baryons and charmed bottom baryons: $\mu_{\Xi^{*0}_{bb}}=0.63\mu_{N}$, $\mu_{\Xi^{*-}_{bb}}=-0.79\mu_{N}$, $\mu_{\Omega^{*-}_{bb}}=0.12\mu_{N}$, $\mu_{\Xi^{*+}_{bc}}=1.12\mu_{N}$, $\mu_{\Xi^{*0}_{bc}}=-0.40\mu_{N}$, $\mu_{\Omega^{*0}_{bc}}=0.56\mu_{N}$.