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Rosenbluth separation of the $\pi^0$ Electroproduction Cross Section off the Neutron

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Academic year: 2021

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FIG. 1. Diagram of the coherent π 0 electroproduction re- re-action on the nucleon (M = M N , x A = x B ) or deuteron (M = M d , x A = x d ) with the dominant π 0 → γγ decay mode
Fig. 2 illustrates that the exclusive π 0 electroproduc- electrotion events are primarily localized below the  produc-tion threshold for a second pion: M X 02 < (M + m π ) 2 ≈ 1.15 GeV 2
Fig. 3 shows the measured φ-dependent photo- photo-absorption cross section for both beam energies and for
FIG. 5. Structure functions dσ T /dt, dσ L /dt, dσ T L /dt and dσ T T /dt as a function of t 0 = t min − t for the neutron (blue) and the deuteron (red)

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