Phase ambiguity of the threshold amplitude in pp -> ppπ^0

Abstract

Measurements of spin observables in pp -> {\vec p}{\vec p}π^0 are suggested to remove the phase ambiguity of the threshold amplitude. The suggested measurements complement the IUCF data on {\vec p}{\vec p} -> ppπ^0 to completely determine all the twelve partial wave amplitudes, taken into consideration by Mayer et.al. [15] and Deepak, Haidenbauer and Hanhart [20].

arXiv comment4 pages, 1 table.

References in corpus (11)

• Meson production in nucleon--nucleon collisions close to the threshold
• Close-to-threshold Meson Production in Hadronic Interactions
• Role of the $\Delta$ isobar in the reaction $NN\to NN\pi$ near threshold
• Dependence of pp->pp pi0 near Threshold on the Spin of the Colliding Nucleons
• p-Wave pion production from nucleon-nucleon collisions
• Polarization phenomena in the reaction NN to NNpi near threshold
• Measurement of Partial-Wave Contributions in pp --> pp pi^0
• Spin correlations in $\vec{p}\vec{p}\to pn{\pi }^{+}$ pion production near threshold
• Partial-wave analysis of $\vec{p}\vec{p}\to pp{\pi }^{\circ }$ data
• Measurement of Spin Correlation coefficients in \vec p \vec p --> d pi^+
• Singlet and Triplet Differential Cross Sections for pp-> pp pi^0