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Measurement E40M44

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Experiment: EG1, 2000

Spokespersons: P. Stoler, V. Burkert, R. Minehart

Publication:

Quantity measured: At, dimensionless
Target spin asymmetry At=(dσt/dΩ*)/(dσ0/dΩ*).
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π0p, polarization: none

Q2 : 0.452 — 0.77 GeV2
W : 1.3 — 1.4 GeV

Select data slice:
cos(θ) = dimensionless
Observable quantity measured (Y axis): At, dimensionless
Plot measurement data

Parameter (X axis): φ, degrees

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Measured data:

cos(θ),
dimensionless 		φ,
degrees 		At,
dimensionless 		Data errors,
dimensionless 		Systematic errors,
dimensionless
-0.9 -168 -0.167 0.435 0.0523
-0.7 -168 -0.349 0.256 0.0319
-0.5 -168 0.042 0.21 0.0233
-0.3 -168 -0.205 0.268 0.0115
-0.1 -168 0.12 0.242 0.0051
0.9 -168 -0.143 0.375 0.0391
-0.9 -144 -1.242 0.74 0.364
-0.7 -144 -0.405 0.208 0.046
-0.5 -144 -0.535 0.207 0.0469
-0.3 -144 -0.395 0.126 0.0233
-0.1 -144 -0.444 0.157 0.0277
0.1 -144 -0.237 0.154 0.0167
0.3 -144 -0.415 0.147 0.0225
0.5 -144 -0.093 0.295 0.0187
0.7 -144 -0.281 0.39 0.0762
0.9 -144 -0.442 0.359 0.1221
-0.9 -120 -0.621 0.314 0.0969
-0.7 -120 -0.4 0.133 0.0296
-0.5 -120 -0.462 0.133 0.038
-0.3 -120 -0.344 0.111 0.0242
-0.1 -120 -0.196 0.1 0.0106
0.1 -120 -0.636 0.157 0.0467
0.3 -120 -0.429 0.15 0.0337
0.5 -120 -0.306 0.192 0.0376
0.7 -120 0.219 0.163 0.014
0.9 -120 -0.16 0.654 0.2127
-0.9 -96 -0.485 0.175 0.0429
-0.7 -96 -0.34 0.108 0.0228
-0.5 -96 -0.272 0.084 0.0154
-0.3 -96 -0.332 0.093 0.0229
-0.1 -96 -0.143 0.076 0.0074
0.1 -96 -0.084 0.078 0.0048
0.3 -96 -0.142 0.096 0.0105
0.5 -96 -0.257 0.128 0.0244
0.7 -96 0.056 0.149 0.0073
0.9 -96 0.134 0.426 0.0062
-0.9 -72 0.039 0.295 0.0185
-0.7 -72 -0.096 0.112 0.0097
-0.5 -72 -0.188 0.094 0.0141
-0.3 -72 -0.145 0.081 0.0096
-0.1 -72 0.037 0.074 0.0038
0.1 -72 -0.109 0.079 0.0075
0.3 -72 -0.153 0.093 0.012
0.5 -72 0.128 0.135 0.0067
0.7 -72 0.477 0.212 0.0499
0.9 -72 0.736 1.436 3.0848
-0.9 -48 -0.104 0.253 0.0202
-0.7 -48 0.185 0.155 0.0197
-0.5 -48 0.199 0.121 0.015
-0.3 -48 0.07 0.089 0.0071
-0.1 -48 -0.142 0.105 0.0121
0.1 -48 0.023 0.097 0.0039
0.3 -48 0.097 0.137 0.004
0.5 -48 0.015 0.176 0.0035
0.7 -48 0.285 0.174 0.0173
0.9 -48 -0.102 0.671 0.2185
-0.9 -24 -0.277 0.241 0.0548
-0.7 -24 0.068 0.169 0.0091
-0.5 -24 0.007 0.157 0.0069
-0.3 -24 0.081 0.117 0.0069
-0.1 -24 -0.1 0.119 0.007
0.9 -24 0.382 0.208 0.0415
-0.9 0 -0.635 0.939 0.9188
-0.7 0 -0.257 0.286 0.0777
-0.5 0 -0.301 0.115 0.0244
-0.3 0 -0.027 0.082 0.0017
-0.1 0 -0.091 0.111 0.0051
0.9 0 0.172 0.46 0.0695
-0.9 24 -1.167 1.432 2.2758
-0.7 24 -0.078 0.168 0.0199
-0.5 24 -0.176 0.168 0.0279
-0.3 24 -0.008 0.102 0.005
-0.1 24 -0.157 0.135 0.0086
0.9 24 -0.022 0.283 0.0053
-0.9 48 -0.181 0.274 0.0541
-0.7 48 -0.025 0.129 0.0085
-0.5 48 -0.032 0.084 0.0093
-0.3 48 -0.175 0.1 0.0125
-0.1 48 -0.074 0.086 0.0056
0.1 48 -0.05 0.095 0.0042
0.3 48 -0.301 0.106 0.0116
0.5 48 -0.099 0.157 0.0031
0.7 48 -0.363 0.172 0.027
-0.9 72 -0.205 0.179 0.0324
-0.7 72 -0.207 0.119 0.021
-0.5 72 0.19 0.086 0.0124
-0.3 72 0.115 0.086 0.0089
-0.1 72 0.109 0.072 0.0073
0.1 72 -0.02 0.082 0.0024
0.3 72 -0.001 0.091 0.0029
0.5 72 0.004 0.1 0.0041
0.7 72 -0.181 0.139 0.0117
0.9 72 0.353 0.748 0.3772
-0.9 96 0.146 0.302 0.0224
-0.7 96 0.149 0.114 0.0121
-0.5 96 0.142 0.095 0.0102
-0.3 96 0.272 0.095 0.0156
-0.1 96 0.119 0.09 0.0071
0.1 96 0.25 0.087 0.0117
0.3 96 0.217 0.109 0.0134
0.5 96 0.027 0.1 0.0048
0.7 96 -0.187 0.147 0.0141
0.9 96 -0.544 0.245 0.087
-0.9 120 0.235 0.207 0.0267
-0.7 120 0.379 0.168 0.0358
-0.5 120 0.504 0.178 0.0441
-0.3 120 0.52 0.159 0.0354
-0.1 120 0.23 0.141 0.016
0.1 120 0.351 0.17 0.0275
0.3 120 0.16 0.126 0.0116
0.5 120 -0.219 0.15 0.0148
0.7 120 -0.179 0.156 0.0127
0.9 120 -0.429 0.319 0.056
-0.9 144 0.323 0.269 0.0482
-0.7 144 0.657 0.257 0.0861
-0.5 144 0.587 0.167 0.0406
-0.3 144 0.22 0.152 0.013
-0.1 144 0.322 0.183 0.02
0.1 144 0.277 0.16 0.0145
0.3 144 0.298 0.255 0.0353
0.5 144 0.176 0.212 0.0174
0.7 144 0.902 0.663 0.2334
0.9 144 0.069 3.229 0.0729
-0.9 168 0.191 0.369 0.0382
-0.7 168 -1.18 0.912 0.4394
-0.5 168 0.229 0.31 0.027
-0.3 168 0.387 0.278 0.0278
-0.1 168 0.334 0.283 0.0287
0.9 168 0.186 0.61 0.0661