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Single photoproduction of eta-mesons on hydrogen in the forward direction at 4 and 6 gev

Braunschweig, W. ; Erlewein, W. ; Frese, H. ; et al.

Phys.Lett.B 33 (1970) 236-240, 1970.

Inspire Record 63065 DOI 10.17182/hepdata.28543

The differential cross-section of the reaction γ p→ η p has been measured at the Deutsches Elektronen Synchrotron (DESY) at mean photon energies of 4 and 6 GeV in the momentum transfer range between zero and 1.4 GeV 2 . The data show a slight maximum around t =−0.15 GeV 2 and fall off smoothly till t =−1.4 GeV 2 . There is no indication of a dip around t =−0.5 GeV 2 .

2 data tables

Table 1

Axis error includes +- 19/19 contribution.

Table 2

Axis error includes +- 19/19 contribution.

Pi0 PHOTOPRODUCTION FROM HYDROGEN AT BACKWARD ANGLES

Tompkins, D.H. ; Anderson, Robert L. ; Gittelman, Bernard J. ; et al.

Phys.Rev.Lett. 23 (1969) 725-728, 1969.

Inspire Record 54854 DOI 10.17182/hepdata.21587

Cross sections for π0 photoproduction from hydrogen in the backward direction have been measured for photon energies of 6, 8, 12, and 18 GeV. The range of momentum transfer covered in these measurements is −1 (GeVc)2<u<0(GeVc)2, dσdu is found to have a backward peak and decreases with energy as s−3.0±0.2. Photoproduction of η0 and ρ0 mesons has also been observed.

12 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.