Upper limit on the decay Σ(1385)-→Σ -γ and cross section for γΣ -→Λπ-
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Coherent Λπ- production on Pb of 600 GeV Σ- hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90%25 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≈1.385 GeV to be 56±16 μb. Crown Copyright © 2004 Published by Elsevier B.V. All rights reserved.
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13.30.Ce; 13.40.Hq; 14.20.Jn; Hyperon radiative decay; Primakoff effect article; data analysis; energy; mathematical analysis; radiation
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