Dependence of pp->pp pi0 near Threshold on the Spin of the Colliding Nucleons

H. O. Meyer; J. T. Balewski; M. Dzemidzic; J. Doskow; R. E. Pollock; B. v. Przewoski; T. Rinckel; F. Sperisen; P. Thörngren-Engblom; M. Wolanski; W. Haeberli; B. Lorentz; F. Rathmann; B. Schwartz; T. Wise; W. W. Daehnick; R. W. Flammang; Swapan K. Saha; D. J. Tedeschi; P. V. Pancella

doi:10.1103/physrevlett.81.3096

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Dependence of pp->pp pi0 near Threshold on the Spin of the Colliding Nucleons

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Abstract

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.

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H. O. Meyer, J. T. Balewski, M. Dzemidzic, J. Doskow, R. E. Pollock, B. v. Przewoski, T. Rinckel, F. Sperisen, P. Thörngren-Engblom, M. Wolanski, W. Haeberli, B. Lorentz, F. Rathmann, B. Schwartz, T. Wise, W. W. Daehnick, R. W. Flammang, Swapan K. Saha, D. J. Tedeschi, P. V. Pancella. 1998-08-31. Dependence of pp->pp pi0 near Threshold on the Spin of the Colliding Nucleons. https://doi.org/10.1103/physrevlett.81.3096

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