2 00 4 Upper limit on the decay Σ ( 1385 ) − → Σ − γ , and cross section for γ Σ − → Λ π −
نویسندگان
چکیده
Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.
منابع مشابه
02 02 6 v 1 1 4 Fe b 20 04 Upper limit on the decay Σ ( 1385 ) − → Σ − γ , and cross section for γ Σ − → Λ π −
Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.
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