Crede, V.
GAMMA P --> PI0 P
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Neutral pion photoproduction off protons in the energy range 0.3-GeV < E(gamma) < 3-GeV.

The CB-ELSA collaboration Bartholomy, O. ; Crede, V. ; van Pee, H. ; et al.
Phys.Rev.Lett. 94 (2005) 012003, 2005.
Inspire Record 654179 DOI 10.17182/hepdata.41902

Single pi0 photoproduction has been studied with the CB-ELSA experiment at Bonn using tagged photon energies between 0.3 and 3.0 GeV. The experimental setup covers a very large solid angle of about 98% of 4 pi. Differential cross sections (d sigma)/(d Omega) have been measured. Complicated structures in the angular distributions indicate a variety of different resonances being produced in the s channel intermediate state gamma p --> N* (Delta*) --> p pi0. A combined analysis including the data presented in this letter along with other data sets reveals contributions from known resonances and evidence for a new resonance N(2070)D15.

2 data tables match query
Table 1

Total cross section for GAMMA P --> P PI0 obtained by integration of the angular distributions and extrapolation into the forward and backward regions using the PWA result.

Table 3

Differential cross section as a function of c.m. angle for the photon energy range 425 to 550 GeV.


Some differential cross-section for neutral pion photoproduction in the photon energy range 350-850 mev

Dougan, P. ; Kivikas, T. ; Lugner, K. ; et al.
Phys.Lett.B 49 (1974) 194-196, 1974.
Inspire Record 95300 DOI 10.17182/hepdata.27968

The preliminary results of measurements of differential cross-sections for the photo-production of neutral pions from protons are given. The data fall in the range 60–125 degrees in pion c.m. angle and 350 to 850 MeV in photon energy.

5 data tables match query
Table 4

Axis error includes +- 10/10 contribution (ESTIMATED ERROR DUE TO PRELIMINARY NATURE OF DATA).

Table 5

Axis error includes +- 10/10 contribution (ESTIMATED ERROR DUE TO PRELIMINARY NATURE OF DATA).

Table 6

Axis error includes +- 10/10 contribution (ESTIMATED ERROR DUE TO PRELIMINARY NATURE OF DATA).

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ASYMMETRY IN SINGLE pi0 PHOTOPRODUCTION BY POLARIZED gamma RAYS ON PROTONS

Bologna, G. ; Fabbri, F.L. ; Spillantina, P. ; et al.
LNF-70-39, 1970.
Inspire Record 1105046 DOI 10.17182/hepdata.37903

None

1 data table match query
Table 1

No description provided.


Cross-Sections for the Photoproduction of pi0 Mesons from Hydrogen from 238-MeV to 922-MeV

Dougan, P. ; Ramsay, V. ; Stiefler, W. ;
Z.Phys.A 276 (1976) 155-160, 1976.
Inspire Record 99794 DOI 10.17182/hepdata.16656

The results of a comprehensive series of measurements of the cross-sections for the photo-production of π0-mesons from hydrogen at pion c.m. angles from 47 to 145 degrees are presented. The minimum and maximum photon energies have been 238 and 922 MeV respectively.

1 data table match query
Table 1

No description provided.


Some cross-sections for the photo-production of neutral Pi-mesons from hydrogen at energies from 360 to 938 MeV

Dougan, P. ; Kivikas, T. ; Lugner, K. ; et al.
Z.Phys.A 274 (1975) 73-78, 1975.
Inspire Record 1385254 DOI 10.17182/hepdata.16654

Some cross-sections for the photo-production of ~z~ from hydrogen for pion c.m. angles in the range 60~ ~ are presented. The data have been obtained by measuring proton yields from a hydrogen target, thus permitting separation of single-pion production from the strong background caused by double-pion production. The values, which extend from 360 to 938 MeV, show reasonable agreement with the results of a recent phase-shift analysis

1 data table match query
Table 1

No description provided.