An effective Lagrangian fit to K_L p → π+ Σ0 data indicates a Σ*(1/2−) resonance around 1.54 GeV, consistent with Σ(1620)1/2−, is essential to describe the data.
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Analysis of $\Sigma^*$ via isospin selective reaction $K_Lp \to \pi^+\Sigma^0$
An effective Lagrangian fit to K_L p → π+ Σ0 data indicates a Σ*(1/2−) resonance around 1.54 GeV, consistent with Σ(1620)1/2−, is essential to describe the data.