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Measurement E151M37

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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 : 0.1435 GeV2
W : 1235 GeV
ε : 0.798
Ebeam : 1.0539 GeV
εL: 0.6489 

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
0.25 294 0.1999 0.5939 0.0376
0.35 282 0.0448 0.5063 0.0304
0.35 294 0.1204 0.5685 0.033
0.45 270 0.1105 0.5381 0.0325
0.45 282 -0.0622 0.4205 0.0308
0.45 294 0.3603 0.5691 0.0508
0.55 270 0.364 0.4508 0.0511
0.55 282 0.423 0.4113 0.0567
0.55 294 -0.6391 0.4861 0.0787
0.65 258 -0.1973 0.408 0.0375
0.65 270 0.4974 0.4408 0.0641
0.65 282 0.939 0.4751 0.111
0.65 294 -0.3177 0.4305 0.047
0.75 258 -0.8875 0.4209 0.1053
0.75 270 0.0795 0.4957 0.0313
0.75 282 0.3873 0.4541 0.0533
0.75 294 0.2342 0.4863 0.0401
0.85 114 -0.5049 0.4572 0.0648
0.85 138 1.1544 0.5768 0.1347
0.85 150 0.4977 0.5132 0.0641
0.85 162 0.6042 0.5636 0.075
0.85 174 0.5999 0.602 0.0746
0.85 198 0.028 0.5005 0.0302
0.85 210 -0.4493 0.478 0.0593
0.85 270 0.5035 0.499 0.0647
0.85 282 -0.3214 0.4831 0.0473
0.95 114 -0.2361 0.397 0.0403
0.95 126 0.6471 0.4509 0.0795
0.95 138 -0.5463 0.3893 0.069
0.95 150 0.8583 0.411 0.1022
0.95 162 0.0655 0.4446 0.0309
0.95 174 -0.4241 0.3638 0.0568
0.95 186 -0.29 0.3657 0.0446
0.95 198 0.544 0.4706 0.0688
0.95 210 -0.4641 0.3306 0.0607