CLAS Physics Database

Measurement E7M4

Experiment: E89-042 CLAS Experiment
Year: 2003
Spokespersons: V. D. Burkert, R. Minehart
Reaction: ep → π0p
Polarization: beam
Quantity: Abπ, φπ)
Q2: 0.4 GeV2
W: 1.22 GeV
x: 0.3613
Publication:
K. Joo, L.C. Smith, V.D. Burkert, R. Minehart, and CLAS Collaboration Measurement of the Polarized Structure Function of Single pi0 Electroproduction in the Delta Resonance Region // Phys. Rev. C, 68 03220101 (2003)

Slice: cos(θπ) = dimensionless

Measurement data
cos(θπ) φπ, [deg] Abπ, φπ), [1/sr] uncertainty
-0.875 22.5 0.043 0.017
-0.875 67.5 0.071 0.0168
-0.875 112.5 0.0646 0.0183
-0.875 157.5 0.0659 0.0216
-0.875 202.5 -0.0332 0.0213
-0.875 247.5 -0.0426 0.0184
-0.875 292.5 -0.0307 0.0171
-0.875 337.5 -0.0229 0.017
-0.625 22.5 0.0174 0.0136
-0.625 67.5 0.0349 0.0138
-0.625 112.5 0.0561 0.0165
-0.625 157.5 0.0306 0.018
-0.625 202.5 -0.0278 0.0181
-0.625 247.5 -0.0751 0.0162
-0.625 292.5 -0.0455 0.0137
-0.625 337.5 -0.0368 0.0134
-0.375 22.5 0.00706 0.0129
-0.375 67.5 0.0452 0.0134
-0.375 112.5 0.0319 0.018
-0.375 157.5 0.0228 0.0177
-0.375 202.5 0.00213 0.0177
-0.375 247.5 -0.0355 0.0175
-0.375 292.5 -0.0423 0.0134
-0.375 337.5 -0.0325 0.0129
-0.125 22.5 0.0162 0.0126
-0.125 67.5 0.00774 0.0136
-0.125 112.5 0.0267 0.0181
-0.125 157.5 0.0252 0.0184
-0.125 202.5 -0.00855 0.0184
-0.125 247.5 -0.0687 0.018
-0.125 292.5 -0.00887 0.0135
-0.125 337.5 -0.00371 0.0126
0.125 22.5 0.0159 0.013
0.125 67.5 -0.0116 0.0139
0.125 112.5 -0.0127 0.0167
0.125 157.5 0.0284 0.0188
0.125 202.5 -0.0213 0.0193
0.125 247.5 -0.0332 0.0167
0.125 292.5 -0.00894 0.0138
0.125 337.5 -0.0232 0.0129
0.375 22.5 -0.0183 0.0139
0.375 67.5 0.0257 0.0143
0.375 112.5 0.0243 0.0165
0.375 157.5 -0.0409 0.0191
0.375 202.5 0.0207 0.0196
0.375 247.5 -0.0333 0.0164
0.375 292.5 -0.00946 0.0145
0.375 337.5 -0.00248 0.0138
0.625 22.5 0.0267 0.0151
0.625 67.5 -0.0157 0.0155
0.625 112.5 0.00293 0.0181
0.625 157.5 0.00967 0.0188
0.625 202.5 -0.0194 0.0188
0.625 247.5 -0.0372 0.0183
0.625 292.5 -0.0126 0.0155
0.625 337.5 -0.00513 0.0152
0.875 22.5 0.0155 0.0178
0.875 67.5 -0.00425 0.0186
0.875 112.5 -0.0401 0.023
0.875 157.5 -0.00131 0.0188
0.875 202.5 -0.000654 0.0187
0.875 247.5 0.00932 0.0232
0.875 292.5 0.0111 0.0183
0.875 337.5 -0.00748 0.0175