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

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.

6 pages, 1 table, 4 figures, corrected equations 2 and 3

Cited by in corpus (17)

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• Polarization phenomena in the reaction NN to NNpi near threshold
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• The near threshold N N -> d pi reaction in chiral perturbation theory
• Analysing power A_y in the reaction p(pol) p --> p p eta close to threshold
• Measurement of Spin Correlation coefficients in \vec p \vec p --> d pi^+
• Initial singlet and triplet spin state contributions to pp -> pp pi0
• Spin Correlation Coefficients in pp-->pnpi+ from 325 to 400 MeV
• Singlet and Triplet Differential Cross Sections for pp-> pp pi^0
• $P$-wave dibaryon resonances in $pp$ elastic scattering and near-threshold pion production
• Spin squeezing of mixed systems
• Anisotropy in the pion angular distribution of the reaction pp -> pp pi0 at 400 MeV
• Heavy Meson Production in NN Collisions with Polarized Beam and Target -- A new facility for COSY
• SU(2) Invariants of Symmetric Qubit States
• Visualisation of an entangled channel spin-1 system
• Phase ambiguity of the threshold amplitude in pp -> ppπ^0