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Measurement E40M7

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Experiment: EG1, 2000

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

Publication:

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

Q2 : 0.187 — 0.317 GeV2
W : 1.5 — 1.6 GeV

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

Parameter (X axis): φ, degrees

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Measured data:

cos(θ),
dimensionless 		φ,
degrees 		Aet,
dimensionless 		Data errors,
dimensionless 		Systematic errors,
dimensionless
-0.3 -168 0.793 0.688 0.0794
-0.1 -168 0.91 2.179 0.2641
0.1 -168 0.135 0.868 0.0888
0.3 -168 0.889 2.153 0.4678
0.5 -168 0.659 1.097 0.3303
0.7 -168 1.88 1.106 0.535
-0.9 -144 0.197 0.732 0.078
-0.5 -144 0.469 0.224 0.0786
-0.3 -144 0.56 0.272 0.0779
-0.1 -144 0.823 0.277 0.072
0.1 -144 0.376 0.205 0.069
0.3 -144 0.822 0.588 0.1495
0.5 -144 0.385 0.449 0.0958
0.7 -144 0.466 0.967 0.2573
-0.9 -120 -0.692 0.442 0.111
-0.7 -120 -0.384 0.395 0.0453
-0.5 -120 0.662 0.227 0.0695
-0.3 -120 0.174 0.145 0.0602
-0.1 -120 0.204 0.124 0.0557
0.1 -120 0.087 0.139 0.0511
0.3 -120 1.775 19.528 0.3476
0.5 -120 0.534 0.363 0.1084
0.7 -120 -0.916 0.645 0.3438
-0.9 -96 0.638 0.309 0.0761
-0.7 -96 0.399 0.253 0.0512
-0.5 -96 -0.148 0.304 0.0494
-0.3 -96 0.307 0.214 0.0615
-0.1 -96 0.026 0.161 0.0422
0.1 -96 0.104 0.23 0.0428
0.3 -96 0.15 0.156 0.0415
0.5 -96 0.626 0.344 0.1263
-0.9 -72 -0.015 0.361 0.0098
-0.7 -72 0.336 0.183 0.0392
-0.5 -72 0.281 0.192 0.0528
-0.3 -72 0.038 0.138 0.042
-0.1 -72 0.101 0.162 0.0487
0.1 -72 0.259 0.148 0.0408
-0.9 -48 0.023 0.571 0.0386
-0.7 -48 0.343 0.227 0.0572
-0.5 -48 -0.009 0.157 0.029
-0.3 -48 -0.089 0.149 0.058
-0.1 -48 0.363 0.147 0.0544
-0.9 -24 -0.417 0.727 0.0591
-0.7 -24 0.158 0.293 0.0467
-0.5 -24 -0.219 0.227 0.0543
-0.3 -24 -0.256 0.179 0.0582
-0.9 0 0.308 1.03 0.1799
-0.7 0 -0.201 0.277 0.0604
-0.5 0 -0.542 0.413 0.0914
-0.3 0 -0.349 0.233 0.0657
-0.9 24 -0.35 0.408 0.0659
-0.7 24 -0.054 0.248 0.047
-0.5 24 0.305 0.214 0.0531
-0.3 24 -0.109 0.172 0.0504
-0.9 48 0.049 0.594 0.0956
-0.7 48 -0.842 0.371 0.1281
-0.5 48 -0.441 0.156 0.0464
-0.3 48 -0.098 0.113 0.0548
-0.1 48 -0.277 0.148 0.0571
-0.9 72 -0.202 0.323 0.0207
-0.7 72 -0.291 0.175 0.0375
-0.5 72 -0.023 0.183 0.042
-0.3 72 -0.135 0.128 0.0515
-0.1 72 -0.177 0.174 0.043
0.1 72 0.198 0.139 0.0401
-0.9 96 -0.102 0.29 0.0325
-0.7 96 1.647 8.775 1.8509
-0.5 96 -0.238 0.255 0.0581
-0.3 96 0.342 0.139 0.0461
-0.1 96 0.212 0.129 0.049
0.1 96 0.057 0.129 0.0426
0.3 96 0.262 0.149 0.0472
0.5 96 0.115 0.186 0.041
-0.9 120 0.335 0.457 0.0851
-0.7 120 -0.375 1.93 0.1183
-0.5 120 -0.164 0.175 0.0643
-0.3 120 0.24 0.12 0.0604
-0.1 120 0.255 0.123 0.0552
0.1 120 0.053 0.115 0.0498
0.3 120 0.485 0.149 0.0559
0.5 120 0.125 0.18 0.0373
0.7 120 -0.063 0.228 0.0219
-0.9 144 0.33 0.563 0.0883
-0.5 144 0.366 0.219 0.0805
-0.3 144 -0.401 0.55 0.0648
-0.1 144 0.267 0.187 0.0692
0.1 144 0.543 0.185 0.0699
0.3 144 0.274 0.258 0.0708
0.5 144 0.995 0.584 0.2273
0.7 144 0.022 0.419 0.0291
-0.3 168 0.694 0.886 0.1224
-0.1 168 0.454 0.373 0.0862
0.1 168 0.911 0.295 0.0964
0.3 168 0.604 0.312 0.1065
0.5 168 -0.504 4.207 0.1497
0.7 168 2.113 21.297 0.4413