Measurement of branching fractions of Λc+ decays to Σ⁺η and Σ⁺η′

By analyzing e⁺e⁻ collision data taken at center-of-mass energies s between 4.600 and 4.699 GeV with the BESIII detector at the BEPCII collider, corresponding to an integrated luminosity of 4.5 fb⁻¹, we study the hadronic decays Λc+→Σ+η and Λc+→Σ+η′ using the single-tag method. The branching fraction ratio of Λc+→Σ+η relative to Λc+→Σ+π0 is determined to be 0.305 ± 0.046_stat.± 0.007_syst., and that of Λc+→Σ+η′ relative to Λc+→Σ+ω is 0.336 ± 0.094_stat± 0.037_syst. The ratio of BΛc+→Σ+η′BΛc+→Σ+η is determined to be 1.73 ± 0.22_stat.± 0.16_syst.. These results enrich our knowledge of charmed baryon decays.