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$\pi^+ p$ elastic scattering

Hughes, C.M. ;

PhD Thesis, Bristol U., 1972.

Inspire Record 1501542 DOI 10.17182/hepdata.76466

None

18 data tables

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$pi^- -- p$ interactions at 905, 960, and 1100 {MeV}

Pickup, E. ; Robinson, D.K. ; Salant, E.O. ; et al.

Phys.Rev. 132 (1963) 1819-1830, 1963.

Inspire Record 44761 DOI 10.17182/hepdata.75462

Single-pion production in π−−p interactions has been studied at 905, 960, and 1100 MeV. Comparison with the isobar and one-pion-exchange (OPE) mechanisms of pion production shows that, below 1 BeV, pion production occurs primarily through the formation of an intermediate excited state of the nucleon (isobar), while at higher energies the influence of the ρ resonance in the ππ system becomes increasingly important. There is some evidence for an I=2 state in the events at the lower energies.

2 data tables

Table 1

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Table 2

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Real Parts of the Pion-Proton Forward Scattering Amplitude

Engelmann, T.R. ; Hendrick, R.E. ;

Phys.Rev.D 16 (1977) 2891, 1977.

Inspire Record 119142 DOI 10.17182/hepdata.75552

The most recent total-cross-section data are used to calculate real parts of the forward elastic π±p scattering amplitudes from threshold to 240 GeV/c. Using statistical and systematic uncertainties of the total cross sections and their momenta, along with uncertainties of the subtraction and coupling constants, unphysical cuts, and cross-section extrapolations, we calculate the uncertainties of the real amplitudes. Our results are compared to experimental and other theoretical determinations of the π±p forward real amplitudes.

240 data tables

Table 1

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Table 3

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