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Measurement E151M478

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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 : 0.101 GeV2
W : 1235 GeV
ε : 0.9604
Ebeam : 1.9889 GeV
εL: 0.6139 

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 78 -0.2988 0.5159 0.0351
0.45 66 0.6643 0.6394 0.0505
0.45 78 -0.2454 0.3523 0.0335
0.45 282 0.202 0.5581 0.0324
0.55 78 0.4826 0.4321 0.0421
0.55 270 0.0533 0.4321 0.0302
0.55 282 -0.2141 0.3835 0.0327
0.65 258 0.4875 0.5739 0.0423
0.65 270 0.4626 0.3715 0.0412
0.65 282 0.1685 0.3979 0.0317
0.75 102 0.3556 0.6179 0.0371
0.75 114 0.1744 0.5439 0.0318
0.75 258 -0.5184 0.3349 0.0436
0.75 270 0.3945 0.3853 0.0385
0.75 282 -0.2505 0.492 0.0337
0.85 90 -0.7233 0.402 0.0535
0.85 102 -0.295 0.3464 0.035
0.85 114 0.3008 0.393 0.0352
0.85 126 0.6638 0.3817 0.0505
0.85 138 0.364 0.4324 0.0374
0.85 246 0.483 0.4456 0.0421
0.85 258 -0.2966 0.3929 0.0351
0.85 270 0.3691 0.4509 0.0375
0.95 102 0.8349 0.3944 0.0592
0.95 114 -0.4787 0.3126 0.0419
0.95 126 0.2868 0.3935 0.0348
0.95 138 0.7092 0.4868 0.0527
0.95 150 0.2245 0.3828 0.033
0.95 162 -0.275 0.4301 0.0344
0.95 174 -0.0319 0.4271 0.0301
0.95 186 -0.4795 0.4077 0.042
0.95 198 0.0119 0.4863 0.03
0.95 210 0.9591 0.468 0.0659
0.95 234 -0.1639 0.4752 0.0316