Fabbri, F.L.
GAMMA P --> PI0 P
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ASYMMETRY IN SINGLE pi0 PHOTOPRODUCTION BY POLARIZED gamma RAYS ON PROTONS

Bologna, G. ; Fabbri, F.L. ; Spillantina, P. ; et al.
LNF-70-39, 1970.
Inspire Record 1105046 DOI 10.17182/hepdata.37903

None

1 data table
Table 1

No description provided.


Photoproduction of pi0 on protons by polarized gamma rays

Barbiellini, G. ; Bologna, G. ; Capon, G. ; et al.
Phys.Rev. 184 (1969) 1402-1413, 1969.
Inspire Record 62287 DOI 10.17182/hepdata.26495

The asymmetry Σ(k,θ*)=(dσ⊥−dσ∥)(dσ⊥+σ∥) of the polarized cross sections for π0 photoproduction has been measured at θ*=90° for energies k of the incident photon in the range 230-380 MeV. The experiment has been performed with the polarized γ-ray beam of the Frascati 1-GeV electron synchrotron. The experimental results are compared with the present theoretical predictions in order to investigate the importance of ω exchange in the t channel and the contribution of the E1+(3) multipole at the 33 resonance. The theory with ω exchange is in the best agreement with the experiment.

1 data table
Table 1

No description provided.