P P --> P P PI0
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Dependence of p(pol.) p(pol.) --> p p pi0 near threshold on the spin of the colliding nucleons.

Meyer, H.O. ; Balewski, J.T. ; Dzemidzic, M. ; et al.
Phys.Rev.Lett. 81 (1998) 3096-3099, 1998.
Inspire Record 472992 DOI 10.17182/hepdata.39971

A polarized internal atomic hydrogen target and a stored, polarized beam are used to measure the spin-dependent total cross section Delta_sigma_T/sigma_tot, as well as the polar integrals of the spin correlation coefficient combination A_xx-A_yy, and the analyzing power A_y for pp-> pp pi0 at four bombarding energies between 325 and 400 MeV. This experiment is made possible by the use of a cooled beam in a storage ring. The polarization observables are used to study the contribution from individual partial waves.

1 data table
Table 1

SIG(C=DEL_T) defined as the cross section with the spins of the colliding protons antiparallel, minus the cross section with spins parallel, using transversely polarized beam and target.