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Measurement E151M173

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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 : 0.0291 GeV2
W : 1445 GeV
ε : 0.6382
Ebeam : 1.0539 GeV
εL: 0.0428 

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 -0.3945 0.6331 0.054
0.25 54 -1.27 0.5778 0.1476
0.35 30 -0.3702 0.7974 0.0517
0.35 42 0.3479 0.666 0.0497
0.35 54 0.3812 0.532 0.0527
0.45 30 -0.1198 0.7492 0.0329
0.45 42 -0.1718 0.5961 0.0358
0.45 54 0.9677 0.5368 0.1141
0.45 66 -0.6225 0.7775 0.0769
0.45 246 0.6021 0.628 0.0748
0.45 258 -0.8043 0.691 0.0963
0.55 30 0.6498 0.8258 0.0798
0.55 42 -0.0378 0.6134 0.0303
0.55 54 0.6033 0.6261 0.0749
0.55 150 -0.2429 0.6893 0.0408
0.55 162 -0.6086 0.7555 0.0755
0.55 210 0.2548 0.7826 0.0417
0.55 222 0.1337 0.6341 0.0336
0.55 234 0.3119 0.5396 0.0465
0.55 246 -0.0782 0.5013 0.0313
0.55 258 -0.9618 0.5476 0.1135
0.65 150 -0.6086 0.6441 0.0755
0.65 162 -1.0804 0.5666 0.1265
0.65 174 0.7942 0.6736 0.0952
0.65 210 1.315 0.7497 0.1526
0.65 222 1.5097 0.6113 0.1744
0.65 234 0.2557 0.4713 0.0418
0.65 246 -0.088 0.4223 0.0316
0.65 258 0.2936 0.5863 0.0449
0.75 42 0.3423 0.7818 0.0492
0.75 138 -0.538 0.7177 0.0682
0.75 150 -0.8532 0.6638 0.1016
0.75 162 -0.3002 0.701 0.0455
0.75 174 0.4107 0.7754 0.0555
0.75 210 0.432 0.7911 0.0576
0.75 222 1.1336 0.5853 0.1324
0.75 234 0.6955 0.6009 0.0846
0.75 246 0.0143 0.3823 0.03
0.75 258 -0.49 0.4206 0.0633
0.85 222 1.5746 0.6731 0.1816
0.85 234 0.1928 0.4737 0.0372
0.85 246 0.6323 0.4735 0.0779
0.85 258 0.4873 0.5615 0.063