Absorption Regge Cut in πN Backward Scattering
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概要
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πN backward scattering data above 5 GeV/c are analyzed in terms of the baryon Regge pole exchange and accompanying Regge cut due to the strong absorption. The fit of the cross sections is reasonable. The role of the cut turns out to be very important : (1) The extrapolated magnitude of the Δ_δ residue at α_Δ=3/2 is significantly larger than that without the cut. Δ_δ residue with or without the wrong signature sense zero at α_Δ=1/2 is equally probable. (2) Prediction of polarization in π^+p→pπ^+ is quite different from that without the cut. Moreover, large polarization in π^-p→pπ^- is ecpected.
- 理論物理学刊行会の論文
- 1971-06-25
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