Magnetic moment for the negative parity $\Lambda \to \Sigma^0$ transition in light cone QCD sum rules

TL;DR

This paper calculates the magnetic moment of the negative parity b4b3b1 a0 b4b3b1 a0 transition in baryons using light cone QCD sum rules, highlighting SU(3) symmetry violation effects.

Contribution

It introduces a method to eliminate pollution from positive parity states and computes the magnetic moment for the negative parity transition.

Findings

Nonzero magnetic moment indicates SU(3) symmetry violation.

Sum rules constructed for different Lorentz structures improve accuracy.

Results provide insights into negative parity baryon properties.

Abstract

The magnetic moment of the $\Lambda \to \Sigma^0$ transition between negative parity, baryons is calculated in framework of the QCD sum rules approach, using the general form of the interpolating currents. The pollution arising from the positive--to--positive, and positive to negative parity baryons are eliminated by constructing the sum rules for different Lorentz structures. Nonzero value of the considered magnetic moment can be attributed to the violation of the $SU(3)$ symmetry.