HEPData Search

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Charged-pi photoproduction at 180 degress in the energy range between 300 and 1200 mev

Fujii, T. ; Okuno, H. ; Orito, S. ; et al.

Phys.Rev.Lett. 26 (1971) 1672-1675, 1971.

Inspire Record 68981 DOI 10.17182/hepdata.21616

The differential cross sections at 180° for the reactions γ+p→π++n and γ+n→π−+p were measured using a magnetic spectrometer to detect π± mesons. In order to reduce the spread of energy resolution due to the nucleon motion inside the deuteron, a photon difference method was employed with a 50-MeV step for the reaction γ+n→π−+p. The data show structures at the second- and the third-resonance regions for both reactions. A simple phenomenological analysis was made for fitting the data, and the results are compared with those of previous analyses.

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

Charged-Pion Photoproduction from Deuterium with Polarized Bremsstrahlung

Liu, F.F. ; Drickey, D.J. ; Mozley, R.F. ;

Phys.Rev. 136 (1964) B1183-B1186, 1964.

Inspire Record 1186786 DOI 10.17182/hepdata.26721

Measurements have been made on the ratio of pion-production cross sections at right angles to and along the photon electric-field vector. The positive and negative pions were first momentum-analyzed and counted by means of a counter telescope. Data have been taken at 45, 90, and 135° in the c.m. system, and at proton energies of 225, 330, and 450 MeV. A comparison of the data is made with the dispersion-relation calculation of McKinley.

2 data tables match query

Table 1

No description provided.

Table 2

No description provided.

The Measurement of Polarized Target Asymmetry on gamma p --> pi+ n Below 1.02-GeV

Fukushima, M. ; Horikawa, N. ; Kajikawa, R. ; et al.

Nucl.Phys.B 130 (1977) 486-504, 1977.

Inspire Record 119547 DOI 10.17182/hepdata.35243

The polarized target asymmetry for the process γ p → π + n has been measured for incident photon energies below 1.02 GeV over a range of c.m. angles from 40° to 160°. π + mesons from a polarized butanol target were detected by a magnetic spectrometer. The results are compared with predictions given by existing analyses. A tentative interpretation of the data is performed, and a larger contribution of S-wave resonances is suggested. The photocouplings of dominant resonances were hardly changed by the inclusion of new data and they seem to be almost uniquely determined.

1 data table match query

Table 1

No description provided.

Polarized Target Asymmetry in $\pi^+$ Photoproduction Between 0.3-GeV and 1.0-GeV at 130°

Feller, P. ; Fukushima, M. ; Horikawa, N. ; et al.

Nucl.Phys.B 102 (1976) 207, 1976.

Inspire Record 90055 DOI 10.17182/hepdata.36079

The polarized target asymmetry for γ + p → π + + n was measured at c.m. angles around 130° for the energy range between 0.3 and 1.0 GeV. A magnetic spectrometer system was used to detect π + mesons from the polarized butanol target. The data show two prominent positive peaks at 0.4 and 0.8 GeV and a deep minimum at 0.6 GeV. These features are well reproduced by the phenomenological analysis made by us.

1 data table match query

Table 1

No description provided.

Polarisation of recoil neutrons from single-pion photoproduction off protons in the resonance region

Hahn, U. ; Wallraff, W. ; Weingarten, W. ;

BONN-PI-1-143, 1971.

Inspire Record 1498199 DOI 10.17182/hepdata.75407

None

1 data table match query

Table 1

No description provided.

Photoproduction of pi+ Mesons from Hydrogen in the Region 350-900 Mev

Heinberg, M. ; McClelland, W.M. ; Turkot, F. ; et al.

Phys.Rev. 110 (1958) 1211-1212, 1958.

Inspire Record 46812 DOI 10.17182/hepdata.26860

None

1 data table match query

Table 1

No description provided.

A Search for Delta I = 2 Electromagnetic Currents in Pion Photoproduction

Clifft, R.W. ; Gabathuler, E. ; Littenberg, L.S. ; et al.

Phys.Rev.Lett. 33 (1974) 1500, 1974.

Inspire Record 90951 DOI 10.17182/hepdata.21245

Differential cross sections for the reactions γp→π0p, π+n and γn→π−p, π0n were measured in a single experiment using tagged photons in the energy region 240-450 MeV incident on H21 and H22 targets. Results of the measurements of the ratios π0nπ0p and π−pπ+n are presented. The ratio of isotensor to isovector amplitude is found to be 0.00±0.02.

15 data tables match query

Table 1

No description provided.

Table 2

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Table 3

No description provided.