Proposal and theoretical formalism for studying baryon radiative decays from J/ψ→ B* B + B*B → γB B

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With accumulation of high statistics data at BESIII, one may study many new interesting channels. Among them, J/ψ→ B* B + B*B → γB B processes may provide valuable information of the radiative decays of the excited baryons (N*,Λ*,Σ*,Ξ*), and may shed light on their internal quark-gluon structure. Our estimation for the branching ratios of the nucleon excitations N*(1440), N*(1535) and N*(1520) from the reaction J/ψ→ N* p + N* p → γp p, indicates that these processes can be studied at BESIII with 10¹⁰ J/ψevents. Explicit theoretical formulae for the partial wave analysis (PWA) of the J/ψ→ B* B + B* B with B*→ B γand B*→ Bγwithin covariant L-S Scheme are provided.