The differential cross section as a function of cos(theta(pi0) in the helicity(H) reference frame.. Statistical erros only.

The differential cross section as a function of phi(pi0) in the helicity(H)reference frame.. Statistical erros only.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 718.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 723.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 727.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 731.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 735.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 739.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 743.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 748.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 752.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 756.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 760.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 768.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 772.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 777.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 781.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 785.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 789.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 793.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 797.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 801.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 805.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 809.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 814.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 818.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 822.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 826.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 830.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 834.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 838.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 842.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 846.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 850.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 854.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 858.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 862.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 866.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 870.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 874.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 878.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 882.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 886.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 890.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 894.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 898.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 902.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 906.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 910.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.3 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 914.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 918.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 922.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 926.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 930.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 933.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 937.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 941.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 945.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 949.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 953.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 957.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 960.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 964.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 968.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 972.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 976.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 980.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 983.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 987.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 991.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 995.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 998.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1002.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.4 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1006.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1011.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1019.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1026.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1034.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1041.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1048.6 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1055.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1063.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1070.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1077.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1084.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1091.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1098.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1105.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1112.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1119.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1125.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1132.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.5 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1139.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1146.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1152.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1159.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1165.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1172.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1178.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1185.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1191.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1198.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1204.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1210.5 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1216.7 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1222.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1229.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.6 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1235.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1242.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1251.3 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1260.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.8 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1268.9 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1277.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1287.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.7 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1300.0 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.9 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1315.1 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.8 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1335.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.8 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1355.4 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.8 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1376.2 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 4.9 PCT.

Differential cross section for the reaction GAMMA P --> ETA P at a photon energy of 1394.8 MeV. The errors in the table are statistical only and there is an overall systematic uncertainty of 5.0 PCT.

Integrated EP cross section.

Integrated EP cross section.

GAMMA* P cross section.

GAMMA* P cross section.

GAMMA* P cross section.

Numerical values modified in the Erratum.

No description provided.

No description provided.

The systematic error is estimated by varying the background contributions by one standard deviation and their slopes between 0 and 3 Gev**-2.

DATA ARE GIVEN ON GRAPHS ONLY.

Longitudinal to transverce cross section ratio.

Longitudinal to transverce cross section ratio.

Longitudinal to transverce cross section ratio in all range.

Cross section was fitted by Q2**POWER.

Cross section was fitted by D(SIG)/D(T)(T=0)*(M(P=3 4)**4)**POWER. Joint fit of H1 and NMC (see NP B429, 503 <a href=http://durpdg.dur.ac.uk/scripts/reacsearch.csh/TESTREAC/red+3112> RED = 3112 </a>) data. An overall 20 PCT normalization uncertainty in NMC data included.

Cross section was fitted by 1/(Q2+M(j/psi)**2)**POWER.

No description provided.

No description provided.

No description provided.

Strong coupling constant ALPHA_S(M_Z) determined from fits of different event variables. The systematic errors represents theoretical uncertaintie The last row is a fit to the combined T_c, T_z and Jet Mass variables with possible correlations between them NOT taken into account.