Light-cone QCD sum rule approach for the $\Xi$ baryon electromagnetic form factors and the semileptonic decay Xi_c->Xi e^+nu_e

TL;DR

This paper uses light-cone QCD sum rules with Ioffe-type currents to calculate Xi baryon electromagnetic form factors and semileptonic decay properties, providing improved predictions for magnetic moments and decay widths.

Contribution

It introduces an improved method using Ioffe-type interpolating currents within light-cone QCD sum rules for more accurate Xi baryon property calculations.

Findings

Magnetic moments: mu_{Xi^0}=-(1.75±0.21) mu_N, mu_{Xi^-}=-(1.01±0.11) mu_N

Semileptonic decay width: (6.17^{+2.24}_{-2.48})×10^{-14} GeV

Enhanced reliability in decay process analysis

Abstract

The electromagnetic form factors of the Xi baryons and the semileptonic decay process Xi_c->Xi e^+nu_e are investigated in the frame work of the light-cone QCD sum rule method with Ioffe-type interpolating currents. Our estimates on the magnetic moments are $mu_{Xi^0}=-(1.75\pm0.21) mu_N and mu_{Xi^-}=-(1.01\pm0.11)mu_N. The decay width of the semileptonic process is expected to be Gamma(\Xi_c\to \Xi e^+\nu_e)=(6.17^{+2.24}_{-2.48})\times10^{-14}GeV. The results make sure that the adoption of this type interpolating current improve the calculations of the magnetic form factors and give more reliable prediction for the analysis of the semileptonic decay process.