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24 April 2024 |
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On eta photoproduction on the neutron and pi^0 eta photoproduction | | M. Döring
; | | Date: |
11 Oct 2010 | | Abstract: | The recently discovered enhancement of eta photoproduction on the quasi-free
neutron at energies around s^1/2 ~ 1.67 GeV is addressed within an SU(3)
coupled channels model. The K Sigma threshold plays a significant role and the
quasi-free cross sections on proton and neutron, sigma_n and sigma_p, can be
quantitatively explained. For the reaction gamma p --> pi^0 eta p, we evaluate
the polarization observables I^S and I^C from a chiral unitary amplitude
developed earlier. The I^S and I^C observables have been recently measured for
the first time by the CBELSA/TAPS collaboration. We show the significance of
the Delta(1700)D33 resonance and its S-wave decay into eta Delta(1232) which
further confirms the dynamical nature of this resonance. | | Source: | arXiv, 1010.2180 | | Services: | Forum | Review | PDF | Favorites | |
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