The Radiative Δ(1600) → <i>γN</i> Decay in the Light-Cone QCD Sum Rules

Abstract

Within the framework of the light-cone QCD sum rules method (LCSR’s), the radiative Δ(1600)→γN decay is studied. In particular, the magnetic dipole moment GM1(0) and the electric quadrupole moment GE1(0) are estimated. We also calculate the ratio REM=−GE1(0)GM1(0) and the decay rate. The predicted multipole moments and the decay rate strongly agree with the existing experimental results as well as with the other available phenomenological approaches.

Keywords

• light-cone QCD sum rules
• radiative decay
• electromagnetic transition form factors
• magnetic dipole moment
• electric quadrupole moment
• decay rate