Dinter, H.
GAMMA P --> PI0 P
[2.895]
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NEUTRAL PION PHOTOPRODUCTION AND PROTON COMPTON SCATTERING AT LARGE ANGLES

Shupe, M.A. ; Milburn, Richard H. ; Quinn, D.J. ; et al.
Phys.Rev.D 19 (1979) 1921-1930, 1979.
Inspire Record 145744 DOI 10.17182/hepdata.24315

The differential cross sections for γp→γp and γp→π0p have been measured for incident photon energies in the range of 2 to 6 GeV and for |t| ranging from 0.7 to 4.3 GeV2. This corresponds to a center-of-mass angle range of 45° to 128°. The energy dependence of the data is compared to that predicted by several parton models.

10 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Target asymmetry for neutral pi meson photoproduction on polarized protons at 4 GeV in the forward direction

Bienlein, H. ; Braunschweig, W. ; Dinter, H. ; et al.
Phys.Lett.B 46 (1973) 131-134, 1973.
Inspire Record 84690 DOI 10.17182/hepdata.28065

The asymmetry A = (σ + −σ − ) (σ + +σ − ) of the reaction γ p↑↓ → π 0 p was measured at the Deutsches Elektronen Synchrotron DESY, Hamburg at a mean photon energy of 4.0 GeV in the four-momentum transfer range 0.2 (GeV/ c ) 2 ⩽ −t ⩽ 1.1 (GeV/ c ) 2 in steps of approximately 0.08 (GeV/ c ) 2 . The π 0 -meson and the proton were detected in coincidence. The asymmetry is compatible with zero in the t -range 0.2 (GeV/ c ) 2 ⩽ − t ⩽ 0.4 (GeV/ c ) 2 and negative in the t -range ⩾ 0.5 (GeV/ c ) 2 .

1 data table
Table 1

No description provided.


Single photoproduction of neutral pi mesons on deuterium in the forward direction at 4 gev

Braunschweig, W. ; Dinter, H. ; Erlewein, W. ; et al.
Nucl.Phys.B 51 (1973) 157-166, 1973.
Inspire Record 84302 DOI 10.17182/hepdata.32703

The ratio R = (d σ /d t )( γ d → ( π 0 n)p)/(d σ /d t )( γ d → ( π 0 p)n), was measured at the Deutsches Elektronen-Synchrotron DESY, Hamburg at a mean photon energy of 4.0 GeV in the four-momentum transfer range between t = − 0.2 (GeV/ c ) 2 and t = − 1.2 (GeV/ c ) 2 in steps of approximately 0.08 (GeV/ c ) 2 . The ratio R is less than 1 up to t = − 0.9 (GeV/ c ) 2 and shows a broad minimum around t = − 0.6 (GeV/ c ) 2 . Corrections for nuclear effects in the deuterium were not applied but are shown to be small.

1 data table
Table 1

No description provided.


Single photoproduction of neutral pi mesons on hydrogen in the forward direction at 4 gev

Braunschweig, W. ; Erlewein, W. ; Frese, H. ; et al.
Nucl.Phys.B 51 (1973) 167-173, 1973.
Inspire Record 84301 DOI 10.17182/hepdata.32708

The differential cross section of the reaction γ p → π 0 p has been measured at the Deutsches Elektronen Synchrotron DESY, Hamburg, at a mean photon energy of 4.0 GeV in the four-momentum transfer range between t = −0.2 (GeV/ c ) 2 and t = −1,2 (GeV/ c ) 2 in steps of approximately 0.08 (GeV/ c ) 2 . The experiment was carried out in connection with the measurements of the photoproduction of π 0 mesons on deuterium, which were described in the preceding article. In the present paper the contributions arising from background reactions are discussed in more detail.

1 data table
Table 1

No description provided.