Transition magnetic moments between negative parity heavy baryons

TL;DR

This paper calculates the transition magnetic moments between negative parity heavy baryons using light cone QCD sum rules, revealing some moments are very small while others are large enough for experimental measurement.

Contribution

It introduces a method to remove unwanted contributions in sum rules for negative parity heavy baryons and provides specific predictions for their magnetic moments.

Findings

Magnetic moments between neutral negative parity heavy baryons are very small.

Magnetic moments of certain transitions are large and measurable.

The method effectively isolates negative parity contributions in sum rule calculations.

Abstract

The transition magnetic moments between negative parity, spin-1/2 heavy baryons are studied in framework of the light cone QCD sum rules. By constructing the sum rules for different Lorentz structures, the unwanted contributions coming from negative (positive) to positive (negative) parity transitions are removed. It is found that the magnetic moments between neutral negative parity heavy $\Xi_Q^{\prime 0}$ and $\Xi_Q^0$ baryons are very small. Magnetic moments of the $\Sigma_Q \to \Lambda_Q$ and $ \Xi_Q^{\prime \pm} \to \Xi_Q^\pm$ transitions are quite large and can be measured in further experiments.