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The electromagnetic decay $\Sigma^0(1385) \to \Lambda \gamma$ was studiedusing the CLAS detector at the Thomas Jefferson National Accelerator Facility.A real photon beam with a maximum energy of 3.8 GeV was incident on a protontarget, producing an exclusive final state of $K^+\Sigma^{*0}$. We report thedecay widths ratio $\Sigma^0(1385) \to \Lambda\gamma$/ $\Sigma^0(1385) \to\Lambda\pi^0$ = $1.42 \pm 0.12(\text{stat})_{-0.07}^{+0.11}(\text{sys})$%. Thisratio is larger than most theoretical predictions by factors ranging from1.5-3, but is consistent with the only other experimental measurement. From thereported ratio we calculate the partial width and electromagnetic transitionmagnetic moment for $\Sigma^0(1385) \to \Lambda\gamma$.

Electromagnetic Decay of the $\Sigma^{0}(1385)$ to $\Lambda\gamma$