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Measurement E151M48

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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 : 0.0245 GeV2
W : 1265 GeV
ε : 0.8831
Ebeam : 1.0539 GeV
εL: 0.1373 

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
0.15 42 -0.7993 0.5804 0.0958
0.25 42 -0.209 0.5011 0.0383
0.25 54 -0.5726 0.5574 0.0717
0.35 30 0.0284 0.5125 0.0302
0.35 42 0.5932 0.4628 0.0739
0.35 54 1.4452 0.5957 0.1671
0.45 30 0.3465 0.4957 0.0495
0.45 42 -0.3386 0.3772 0.0488
0.45 54 -0.3027 0.4225 0.0457
0.45 258 -0.8618 0.4046 0.1025
0.45 270 -0.1782 0.5102 0.0362
0.55 42 -0.5336 0.5272 0.0677
0.55 54 1.2381 0.682 0.144
0.55 234 -0.4721 0.5628 0.0615
0.55 246 -0.1268 0.319 0.0333
0.55 258 -0.1246 0.3231 0.0332
0.55 270 0.104 0.3343 0.0323
0.55 282 0.9495 0.5616 0.1121
0.65 150 1.2861 0.6059 0.1494
0.65 162 0.4091 0.6752 0.0554
0.65 174 -0.2367 0.597 0.0403
0.65 222 -0.3419 0.4908 0.0491
0.65 234 0.1485 0.3494 0.0344
0.65 246 0.4915 0.2903 0.0635
0.65 258 0.0104 0.2652 0.03
0.65 270 0.6638 0.3503 0.0813
0.65 282 -0.5616 0.3554 0.0706
0.75 126 -0.7295 0.552 0.0882
0.75 138 -0.0005 0.4636 0.03
0.75 150 -0.169 0.4724 0.0356
0.75 162 1.1814 0.4868 0.1377
0.75 174 0.3297 0.3861 0.048
0.75 186 -0.2957 0.4034 0.0451
0.75 198 -0.575 0.416 0.072
0.75 210 0.0904 0.5894 0.0317
0.75 222 -0.9009 0.3707 0.1068
0.75 234 -0.0237 0.3161 0.0301
0.75 246 -0.2316 0.2752 0.0399
0.75 258 -0.2333 0.2707 0.0401
0.75 270 -0.0016 0.2755 0.03
0.75 282 1.059 0.3856 0.1242
0.85 138 -1.0846 0.3985 0.127
0.85 150 0.038 0.4297 0.0303
0.85 162 0.0043 0.3679 0.03
0.85 174 -0.7365 0.3616 0.089
0.85 186 0.4596 0.4391 0.0603
0.85 198 0.3078 0.4399 0.0461
0.85 210 0.2412 0.5423 0.0407
0.85 222 -0.1785 0.4535 0.0362
0.85 234 -0.0177 0.369 0.0301
0.85 246 0.4294 0.3392 0.0573
0.85 258 0.1625 0.2992 0.0352
0.85 270 0.0259 0.3321 0.0301
0.95 138 0.6985 0.5351 0.0849