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Measurement E151M222

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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 : 0.0496 GeV2
W : 1235 GeV
ε : 0.9323
Ebeam : 1.3383 GeV
εL: 0.3377 

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
0.25 42 -0.3424 0.4037 0.0371
0.45 270 -0.7173 0.3082 0.0553
0.45 282 0.3963 0.3533 0.0387
0.55 258 -0.0288 0.3546 0.0367
0.55 270 0.0277 0.2695 0.0359
0.55 282 -0.3916 0.239 0.0384
0.65 246 -0.1044 0.2716 0.0334
0.65 258 -0.0576 0.262 0.0411
0.65 270 -0.4818 0.1895 0.042
0.65 282 -0.3283 0.2412 0.0368
0.75 126 -0.2257 0.752 0.0329
0.75 138 0.0315 0.6755 0.0301
0.75 234 0.3128 0.7076 0.0354
0.75 246 0.4394 0.5293 0.04
0.75 258 -0.0511 0.3717 0.0302
0.75 270 -0.2917 0.3276 0.0348
0.75 282 0.3196 0.4772 0.0356
0.85 114 0.1005 0.5986 0.0306
0.85 126 0.5651 0.5264 0.0454
0.85 138 -0.2269 0.45 0.033
0.85 150 0.5004 0.5702 0.0425
0.85 162 0.5312 0.5613 0.0439
0.85 174 -0.8337 0.3218 0.0585
0.85 186 -0.026 0.5051 0.03
0.85 198 -0.3725 0.4801 0.0375
0.85 234 0.3415 0.8242 0.0364
0.85 246 0.0703 0.5185 0.0303
0.85 258 -0.4135 0.3273 0.039
0.85 270 0.8998 0.59 0.0619
0.85 282 0.4073 0.6502 0.0388
0.95 126 0.3044 0.6568 0.0352
0.95 138 0.062 0.5687 0.0302
0.95 150 -0.1891 0.5457 0.0321
0.95 162 -0.6046 0.4038 0.0472
0.95 174 -0.2417 0.5359 0.0333
0.95 186 0.6216 0.7418 0.048
0.95 198 -0.1292 0.534 0.031
0.65 294 1.3273 0.4014 0.0875
0.75 138 0.3735 0.5167 0.0379
0.75 150 0.9562 0.4879 0.0664
0.75 234 -0.7171 0.3806 0.0536
0.75 246 -0.3865 0.3129 0.0384
0.75 258 -0.201 0.2737 0.0325
0.75 270 -0.584 0.2847 0.047
0.75 282 0.0304 0.3149 0.0301
0.85 114 0.1859 0.3952 0.0321
0.85 126 -0.3139 0.3338 0.0357
0.85 138 0.5924 0.2931 0.0474
0.85 150 0.3471 0.2922 0.0369
0.85 162 0.2438 0.2805 0.0336
0.85 174 0.2853 0.3726 0.0348
0.85 186 -0.3189 0.3537 0.0359
0.85 198 -0.2765 0.3616 0.0345
0.85 210 -0.5906 0.4035 0.0473
0.85 222 0.4672 0.4336 0.0417
0.85 246 -0.2412 0.3349 0.0335
0.85 258 -0.2236 0.34 0.033
0.85 270 0.099 0.2868 0.0306
0.85 282 0.1004 0.4073 0.0306
0.95 126 -0.3639 0.3575 0.0375
0.95 150 0.0189 0.3387 0.03
0.95 162 -0.0123 0.3419 0.03
0.95 174 -0.3175 0.3662 0.0359
0.95 186 -0.1745 0.4098 0.0319
0.95 198 0.7436 0.4219 0.055