Showing 3 of 3 results
We present a series of numerical and statistical techniques for interpolating and combining ("amalgamating") data from meson-nucleon scattering experiments. These techniques have been extensively applied to πp elastic and charge-exchange differential-cross-section and polarization data in the resonance region. The amalgamation is done by fitting a momentum- and angle-dependent interpolating surface to the data over a moderately narrow momentum range, typically ∼150 MeV/c, using the interpolating surface to shift data in a narrower central momentum region into fixed angular bins at a predetermined central momentum, and then statistically combining the data in each bin. The fitting procedure takes into account normalization errors, momentum calibration errors, momentum resolution, electromagnetic corrections, threshold structure, and inconsistencies among the data. The full covariance matrix of the amalgamated data is calculated, including contributions of statistical error, systematic error, and interpolation error. Techniques are presented for extracting from the covariance matrix information on the collective statistical fluctuations which correlate the errors of the amalgamated data. These fluctuations are described in terms of "correlation vectors" which facilitate the use of the amalgamated data as input for resonance-region phenomenology.
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Cross sections for pi+-p elastic scattering have been measured to high precision, for beam momenta between 800 and 1240 MeV/c, by the EPECUR Collaboration, using the ITEP proton synchrotron. The data precision allows comparisons of the existing partial-wave analyses (PWA) on a level not possible previously. These comparisons imply that updated PWA are required.
Differential cross section of elastic $\pi^+$p-scattering at P= 800.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 803.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 807.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 810.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 814.54 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 818.13 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 822.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 825.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 829.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 833.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 837.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 841.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 845.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 848.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 852.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 856.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 859.96 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 863.71 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 867.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 871.42 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 874.88 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 878.79 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 882.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 886.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 890.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 894.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 897.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 901.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 905.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 909.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 912.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 916.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 919.04 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 923.38 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 927.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 931.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 936.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 940.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 948.08 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 952.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 957.42 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 963.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 968.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 972.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 978.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 983.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 987.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 993.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P= 998.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1002.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1008.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1013.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1017.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1023.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1028.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1032.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1038.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1043.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1047.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1053.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1058.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1062.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1068.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1073.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1077.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1083.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1088.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1092.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1097.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1102.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1107.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1111.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1116.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1121.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1125.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1130.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1135.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1139.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1144.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1149.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1154.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1159.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1164.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1170.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1175.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1180.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1186.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1191.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1195.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1201.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1206.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1210.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1216.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1221.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1225.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1231.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1236.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1240.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1247.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1252.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1257.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1262.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1267.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1272.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1276.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1281.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1286.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1291.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1296.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1301.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1306.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1311.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1316.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1320.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1325.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^+$p-scattering at P=1330.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 800.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 803.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 807.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 810.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 814.54 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 818.13 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 822.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 825.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 829.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 833.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 837.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 841.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 845.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 848.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 852.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 856.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 859.96 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 863.71 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 867.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 871.42 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 874.88 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 878.79 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 882.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 886.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 890.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 894.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 897.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 901.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 905.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 909.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 912.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 916.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 919.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 923.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 927.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 931.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 934.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 938.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 940.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 943.21 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 946.79 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 950.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 953.44 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 956.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 960.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 964.17 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 968.08 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 971.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 975.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 979.29 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 983.19 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 986.85 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 990.63 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 993.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P= 998.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1001.54 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1005.71 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1008.25 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1010.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1014.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1017.79 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1022.13 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1026.21 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1029.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1032.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1035.96 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1039.54 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1043.77 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1047.48 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1052.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1056.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1060.42 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1063.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1066.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1070.42 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1074.35 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1078.23 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1082.29 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1086.21 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1090.04 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1093.96 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1098.04 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1102.29 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1104.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1108.21 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1112.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1116.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1120.83 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1124.08 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1127.77 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1132.23 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1134.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1137.44 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1140.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1143.60 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1147.81 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1152.02 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1157.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1162.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1167.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1172.29 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1177.38 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1182.46 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1187.33 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1192.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1197.67 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1202.58 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1207.75 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1212.92 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1217.02 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1222.31 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1227.60 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1232.38 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1237.63 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1242.88 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1247.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1252.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1257.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1262.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1267.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1272.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1276.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1281.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1286.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1291.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1296.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1301.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1306.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1311.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1316.00 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1320.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1325.50 MeV/c. Errors shown are statistical only.
Differential cross section of elastic $\pi^-$p-scattering at P=1330.50 MeV/c. Errors shown are statistical only.
A precision measurement of absolute pi+p and pi-p elastic differential cross sections at incident pion laboratory kinetic energies from T_pi= 141.15 to 267.3 MeV is described. Data were obtained detecting the scattered pion and recoil proton in coincidence at 12 laboratory pion angles from 55 to 155 degrees for pi+p, and six angles from 60 to 155 degrees for pi-p. Single arm measurements were also obtained for pi+p energies up to 218.1 MeV, with the scattered pi+ detected at six angles from 20 to 70 degrees. A flat-walled, super-cooled liquid hydrogen target as well as solid CH2 targets were used. The data are characterized by small uncertainties, ~1-2% statistical and ~1-1.5% normalization. The reliability of the cross section results was ensured by carrying out the measurements under a variety of experimental conditions to identify and quantify the sources of instrumental uncertainty. Our lowest and highest energy data are consistent with overlapping results from TRIUMF and LAMPF. In general, the Virginia Polytechnic Institute SM95 partial wave analysis solution describes our data well, but the older Karlsruhe-Helsinki PWA solution KH80 does not.
Centre of mass absolute differential cross sections at pion kinetic energy 141.15 MeV using the liquid H2 target and single arm pion detection. There is an additional systematic error of 1.1 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 141.15 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 141.15 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.6 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 141.15 MeV using the 2mm solid CH2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.6 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 154.6 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.4 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 168.8 MeV using the liquid H2 target and single arm pion detection. There is an additional systematic error of 1.1 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 168.8 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 168.8 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.1 PCT (1.4 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 168.8 MeV using the 2mm solid CH2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.5 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 193.15 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 2.5 PCT (2.0 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 193.15 MeV using the 2mm solid CH2 target and two arm pion detection. There is an additional systematic error of 2.5 PCT (2.0 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 218.1 MeV using the liquid H2 target and single arm pion detection. There is an additional systematic error of 1.2 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 218.1 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.5 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 218.1 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 218.1 MeV using the 2mm solid CH2 target and two arm pion detection. There is an additional systematic error of 1.5 PCT for PI+ beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 240.9 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.4 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 267.3 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT (1.2 PCT) for PI+ (PI-) beams which is not included in the errors shown in the table.
Centre of mass absolute differential cross sections at pion kinetic energy 267.3 MeV using the liquid H2 target and two arm pion detection. There is an additional systematic error of 1.3 PCT for PI+ beams which is not included in the errors shown in the table.
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