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$\pi^+$-proton interactions at 500 MeV incident energy

Debaisieux, J. ; Grard, F. ; Heughebaert, J. ; et al.

Nucl.Phys. 63 (1965) 273-285, 1965.

Inspire Record 1400917 DOI 10.17182/hepdata.37098

We present results on $\pi^+$-p interactions at 500 MeV from an experiment performed with the Saclay 35 cm hydrogen bubble chamber. A total of 1840 events have been observed. The branching ratio for elastic events is equal to 0.883$\pm$0.008. Eight events are unambiguously attributed to the reaction $\pi^+p\to\pi^+p\gamma$. Cross sections for the various reactions are given. The elastic angular distribution has been determined up to cos$\theta$ = +0.975 and shows evidence for S, P, D waves in good agreement with the results obtained in other experiments. For the one-pion production reactions, the ratio of $\pi^0$ production to $\pi^+$ production is found equal to 4.1$\pm$0.8. This result and the corresponding distributions for momentum and angle of the secondaries are compared with the predictions of the isobaric models.

1 data table

Table 1

No description provided.

$\pi^+ − p$ elastic scattering at 820, 900 and 1050 MeV

Barloutaud, R. ; Choquet-Louedec, C. ; Derem, A. ; et al.

Phys.Lett. 1 (1962) 207-208, 1962.

Inspire Record 1400915 DOI 10.17182/hepdata.31235

None

3 data tables

Table 1

No description provided.

Table 2

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Table 3

No description provided.

Forward $\pi^-p$ charge exchange scattering between 0.8 and 1.9 GeV

Borgeaud, P. ; Bruneton, C. ; Ducros, Y. ; et al.

Phys.Lett. 10 (1964) 134-137, 1964.

Inspire Record 1400914 DOI 10.17182/hepdata.31224

None

15 data tables

Table 1

No description provided.

Table 2

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Table 3

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$\pi^+ p$ interactions at 850 MeV/c

Debaisieux, J. ; Dufour, P. ; Grard, F. ; et al.

Nucl.Phys.B 5 (1968) 147-157, 1968.

Inspire Record 1400916 DOI 10.17182/hepdata.32747

Experimental results are presented on $\pi^+ p$ interactions at 850 MeV/c incident momentum. Cross sections for the various reactions are given. The elastic differential cross section has been fitted to a polynomial in, cos$\theta$ and the resulting coefficients are compared to results at neighbouring incident momenta. For the one-pion-production reactions, the (N$\pi$) effective mass distributions and the ratio of $\pi^0$ to $\pi^+$ production have been compared to the predictions of several theoretical models.

1 data table

Table 1

No description provided.

Elastic differential cross sections for $\pi^+ p$ at 1.76 and 2.08 GeV/c

James, F.E. ; Johnson, J.A. ; Kraybill, H.L. ;

Phys.Lett. 19 (1965) 72-74, 1965.

Inspire Record 1400913 DOI 10.17182/hepdata.30157

None

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Structure in $\pi^+ p$ elastic backward scattering

Dobrowolski, T. ; Gus'kov, B.N. ; Likhachev, M.F. ; et al.

Phys.Lett.B 24 (1967) 203-206, 1967.

Inspire Record 1400910 DOI 10.17182/hepdata.29617

The energy dependence of the differential cross section for $\pi^+ p$ elastic scattering at a c.m. angle near 174 ° has been measured. The momentum range of incident $\pi^+$ was 2.06-4.70 GeV/c. On this energy dependence one can see a structure, i.e. maxima corresponding to the baryon resonances $\Delta(2420)$ and $\Delta(2840)$. The structure is used for determination of the parities of these resonances.

13 data tables

Table 1

No description provided.

Table 2

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Table 3

No description provided.