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Study of the reaction γp → pπ0η

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Abstract

The reaction γppπ0η has been studied with the CBELSA detector at the tagged photon beam of the Bonn electron stretcher facility. The reaction shows contributions from Δ+(1232)η , N(1535)+π0 and pa 0(980) as intermediate states. A partial-wave analysis suggests that the reaction proceeds via formation of six Δ -resonances, Δ(1600)P 33 , Δ(1920)P 33 , Δ(1700)D 33 , Δ(1940)D 33 , Δ(1905)F 35 , Δ(2360)D 33 , and two nucleon resonances N(1880)P 11 and N(2200)P 13 , for which pole positions and decay branching ratios are given.

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The CB-ELSA Collaboration., Horn, I., Anisovich, A.V. et al. Study of the reaction γp → pπ0η. Eur. Phys. J. A 38, 173–186 (2008). https://doi.org/10.1140/epja/i2008-10657-7

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