Analysis of ${\gamma }^{\ast }\Lambda \to {\Sigma }^0$ transition in QCD

Abstract

The ${\gamma }^{\ast }\Lambda \to {\Sigma }^0$ transition form factors are investigated within the light--cone QCD sum rules method. Using the most general form of the interpolating current of ${\Sigma }^0$ baryon and the distribution amplitudes of $\Lambda$ baryon we calculate the $Q^2$ dependence of the electromagnetic form factors. Our result are compared with the predictions of the covariant spectator quark model.

13 Pages and 4 Figures

References in corpus (8)

• Nucleon Electromagnetic Form Factors
• Nucleon Form Factors in QCD
• Spin 1/2^+, spin 3/2^+ and transition magnetic moments of low lying and charmed baryons
• Light-cone Distribution Amplitudes of Xi and their Applications
• Electromagnetic form factors of the $\Lambda$ and $\Sigma$ baryons in an alternative baryonic current approach
• Nucleon Electromagnetic Form Factors in QCD
• Covariant spectator quark model description of the ${\gamma }^{\ast }\Lambda \to {\Sigma }^0$ transition
• Medium Modifications of Hadron Properties and Partonic Processes

Cited by in corpus (3)

• Hyperon elastic electromagnetic form factors in the space-like momentum region
• Gravitational form factors of hyperons in light-cone QCD
• Magnetic moments of ${\Xi }_Q^{\prime }$-${\Xi }_Q$ transitions in light cone QCD