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Measurement E40M23

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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 : 0.452 — 0.77 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 0.533 0.605 0.0738
0.5 -168 4.404 4.626 0.987
0.7 -168 1.887 4.986 1.9846
-0.3 -144 2.836 2.909 0.4929
-0.1 -144 0.203 0.433 0.0926
0.1 -144 0.476 0.666 0.0891
0.3 -144 0.692 0.403 0.0807
0.5 -144 0.686 1.212 0.1168
0.7 -144 -0.063 0.308 0.0079
0.9 -144 0.277 3.419 0.0629
-0.9 -120 -0.059 1.384 0.0204
-0.7 -120 1.062 0.724 0.073
-0.5 -120 0.859 0.65 0.0805
-0.3 -120 0.931 0.424 0.0759
-0.1 -120 0.082 2.814 0.1472
0.1 -120 1.354 0.718 0.1436
0.3 -120 0.432 0.651 0.1148
0.5 -120 1.716 1.04 0.2367
0.7 -120 0.027 0.444 0.0515
-0.9 -96 -2.177 3.197 0.8951
-0.7 -96 1.218 1.361 0.214
-0.5 -96 -0.201 0.806 0.0811
-0.3 -96 0.514 0.643 0.0843
-0.1 -96 0.154 0.307 0.0747
0.1 -96 0.557 0.376 0.0756
0.3 -96 -0.182 0.283 0.058
0.5 -96 0.414 0.373 0.0603
0.7 -96 0.933 0.924 0.1792
-0.9 -72 0.689 3.955 0.2384
-0.7 -72 -1.472 2.213 0.4725
-0.5 -72 0.784 0.373 0.075
-0.3 -72 0.446 0.286 0.0794
-0.1 -72 0.267 0.405 0.0722
0.1 -72 0.636 0.501 0.0832
0.3 -72 0.448 0.463 0.0624
0.5 -72 1.059 0.65 0.098
-0.9 -48 -1.362 3.361 0.6195
-0.7 -48 0.71 0.427 0.0593
-0.5 -48 -0.3 0.33 0.078
-0.3 -48 0.11 0.402 0.0857
-0.1 -48 0.484 0.323 0.0785
0.1 -48 0.138 0.337 0.0743
-0.9 -24 -1.317 7.812 0.241
-0.7 -24 -0.799 0.86 0.1037
-0.5 -24 -0.938 0.644 0.1094
-0.3 -24 -0.123 0.296 0.0976
-0.1 -24 -0.019 0.299 0.1011
-0.5 0 -0.616 1.136 0.1613
-0.3 0 0.441 0.232 0.0904
-0.1 0 0.615 0.193 0.0944
-0.7 24 0.542 0.433 0.0378
-0.5 24 -2.044 1.957 0.4938
-0.3 24 1.098 3.507 0.1484
-0.1 24 -0.048 0.327 0.0928
-0.9 48 1.194 2.388 0.2891
-0.5 48 1.53 0.924 0.2031
-0.3 48 0.346 0.248 0.0835
-0.1 48 0.677 0.43 0.0879
0.1 48 0.427 0.189 0.087
-0.9 72 -0.098 0.654 0.0427
-0.7 72 0.382 0.42 0.0681
-0.5 72 0.374 0.343 0.0716
-0.3 72 0.282 0.269 0.0752
-0.1 72 0.193 0.247 0.0774
0.1 72 0.279 0.202 0.071
0.3 72 -0.096 0.761 0.0844
0.5 72 0.848 0.564 0.0743
-0.9 96 -0.248 0.396 0.02
-0.7 96 0.174 0.498 0.074
-0.5 96 0.297 0.441 0.0883
-0.3 96 0.563 0.324 0.0795
0.1 96 0.505 0.455 0.0709
0.3 96 -0.557 6.813 0.1953
0.5 96 0.704 0.317 0.0492
0.9 96 -0.183 0.444 0.0431
-0.9 120 0.261 0.663 0.0352
-0.7 120 1.172 0.766 0.0926
-0.5 120 0.385 0.446 0.0916
-0.3 120 0.46 0.28 0.0787
-0.1 120 0.591 0.495 0.0879
0.1 120 -0.595 5.438 0.27
0.3 120 0.387 0.413 0.0622
0.5 120 0.616 0.308 0.0528
0.7 120 -0.153 0.69 0.0763
-0.3 144 -0.95 9.358 0.1837
-0.1 144 0.444 0.333 0.0825
0.1 144 0.212 0.469 0.09
0.3 144 0.547 0.423 0.0801
0.5 144 1.101 1.081 0.1831
0.7 144 0.977 3.115 0.9686
0.9 144 2.757 6.886 4.576
0.3 168 0.318 0.545 0.0744
0.5 168 1.869 1.722 0.3803
0.7 168 -0.696 8.914 0.4405