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Photoproduction of $\pi^+$ Mesons from Protons at $E_\gamma = 230$ MeV and Determination of the $\gamma\pi\rho$ coupling Constant

Aleksandrov, Yu.M. ; Grushin, V.F. ; Zapevalov, V.A. ; et al.

Zh.Eksp.Teor.Fiz. 49 (1965) 54-65, 1965.

Inspire Record 1387583 DOI 10.17182/hepdata.71192

The differential cross section for photoproduction of 1r + mesons from protons at an energy Ey = 230 MeV has been measured for center-of-mass angles of 0, 38, 82, 90, 116, 138, 146, and 180°. A magnetic spectrometer and a meson-stopping detector were used to identify mesons from momentum and range. stopped 1r+ mesons were detected by means of the 1r- p. decay. The statistical accuracy of the results is ±(3-4)% on the average. From comparison of the experimental data with theoretical calculations based on dispersion relations, we have estimated the value of the y1rp coupling constant, Ay1rp = (0.63 ± O.ll)ef.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Small Angle Elastic electron - Deuteron Scattering

Akimov, Yu.K. ; Andert, K. ; Arvanov, A.N. ; et al.

EFI-98-74, 1974.

Inspire Record 91477 DOI 10.17182/hepdata.18429

None

1 data table

Table 1

X ERROR D(EKIN) = 0.0600 MEV.

Positive pion photoproduction from hydrogen at large angles in the region of the first resonance

Aleksandrov, Yu.M. ; Grushin, V.F. ; Leikin, E.M. ;

Phys.Lett.B 25 (1967) 372-375, 1967.

Inspire Record 1389625 DOI 10.17182/hepdata.29431

The results of measurement of differential cross sections for the process γp → nπ + are presented for γ-ray energies 260, 290, 320 MeV and pion angles 90°–180°.

1 data table

Table 1

Only statistical errors are given.