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Measurement E151M235

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

Quantity measured: AUL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.0171 GeV2
W : 1265 GeV
ε : 0.9364
Ebeam : 1.3383 GeV
εL: 0.1041 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): AUL,
Plot measurement data

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees 		AUL Data errors Systematic errors
0.35 54 -0.5411 0.4968 0.045
0.45 30 1.3807 0.4843 0.0906
0.45 270 0.0178 0.5072 0.03
0.55 246 0.4389 0.3945 0.0405
0.55 258 0.003 0.3674 0.03
0.55 270 -0.3029 0.4101 0.0354
0.65 138 -0.4926 0.5407 0.0428
0.65 234 -0.3535 0.4047 0.0371
0.65 246 -0.4612 0.2642 0.0414
0.65 258 -0.2215 0.3032 0.033
0.65 270 -0.2994 0.3742 0.0353
0.65 282 0.2033 0.5324 0.0325
0.75 138 -0.2167 0.4097 0.0329
0.75 150 0.0038 0.3665 0.03
0.75 162 0.2918 0.4481 0.035
0.75 174 -0.4721 0.396 0.0419
0.75 186 -0.0028 0.4917 0.03
0.75 222 -1.1126 0.3942 0.0751
0.75 234 0.1094 0.3436 0.0308
0.75 246 -0.499 0.2807 0.0431
0.75 258 0.2471 0.2962 0.0337
0.75 270 -0.1751 0.3923 0.0319
0.85 138 -0.6362 0.4683 0.0495
0.85 150 0.2094 0.4354 0.0327
0.85 162 -0.3625 0.4055 0.0375
0.85 174 -0.1973 0.5215 0.0324
0.85 210 -0.0459 0.4962 0.0301
0.85 222 0.5808 0.4606 0.0468
0.85 234 0.2769 0.3804 0.0346
0.85 246 -0.2717 0.3038 0.0344
0.85 258 -0.5238 0.3052 0.0442
0.85 270 -0.0331 0.3948 0.0301
0.25 42 -0.8798 0.455 0.0609
0.25 54 0.4336 0.8171 0.0398
0.35 42 1.2328 1.1859 0.0801
0.35 54 0.1406 0.7129 0.0312
0.45 42 1.3573 1.1303 0.0871
0.55 246 -0.1222 0.6334 0.0309
0.55 258 -0.7881 0.3472 0.0561
0.55 270 -0.7788 0.3411 0.0557
0.65 222 -0.5236 0.5459 0.0435
0.65 234 0.1802 0.5315 0.0319
0.65 246 -0.152 0.4004 0.0314
0.65 258 0.0587 0.4011 0.0302
0.65 270 0.1287 0.5711 0.031
0.75 138 -0.4547 0.6735 0.0406
0.75 150 1.2371 0.8546 0.0803
0.75 162 0.4043 0.7889 0.0386
0.75 174 0.1175 0.6854 0.0308
0.75 222 0.4297 0.6451 0.0396
0.75 234 -0.074 0.5153 0.0303
0.75 246 -0.5525 0.3083 0.0448
0.75 258 0.8506 0.5165 0.0594
0.75 270 0.4653 0.5508 0.0411
0.85 150 -0.99 0.3888 0.0667
0.85 162 -0.6106 0.5079 0.0475
0.85 174 0.6735 0.9047 0.0504
0.85 186 -0.8114 0.5328 0.0573
0.85 210 -0.1483 0.639 0.0313
0.85 222 -0.1751 0.6107 0.0318
0.85 234 -0.0319 0.6143 0.0301
0.85 246 -0.1572 0.4536 0.0315
0.85 258 -0.6731 0.3192 0.0504
0.85 270 -0.1888 0.5959 0.0321