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Measurement E151M288

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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 : 0.2445 GeV2
W : 1325 GeV
ε : 0.7562
Ebeam : 1.3383 GeV
εL: 0.5193 

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
0.65 246 0.9914 0.6468 0.0683
0.65 258 -0.1836 0.4918 0.0573
0.75 102 -0.2037 0.5421 0.0367
0.75 114 0.5953 0.5652 0.0595
0.75 126 -0.3688 0.8499 0.0373
0.75 234 -0.5427 0.7292 0.0444
0.75 270 0.0573 0.5275 0.0352
0.75 282 -0.4134 0.4627 0.0493
0.75 294 0.1225 0.4333 0.038
0.85 90 -0.4437 0.6144 0.0407
0.85 102 -0.509 0.5319 0.0435
0.85 114 -0.4308 0.4477 0.0416
0.85 126 -0.3288 0.5116 0.0471
0.85 138 -0.3817 0.454 0.0409
0.85 150 0.9281 0.505 0.0698
0.85 162 -0.4377 0.7973 0.0399
0.85 174 0.4767 1.1484 0.0415
0.85 234 -0.0479 0.6292 0.0301
0.85 246 -0.701 0.6171 0.0518
0.95 66 0.5861 1.0021 0.0463
0.95 126 -0.9751 0.5057 0.0659
0.95 138 -0.7455 0.6485 0.054
0.95 270 -0.1736 0.5729 0.0318
0.85 258 0.1614 0.5175 0.0316
0.85 282 -0.2601 0.5694 0.0341
0.85 294 0.6715 0.5573 0.0513
0.85 306 0.7857 0.5224 0.0572
0.95 54 -0.0355 0.5488 0.0301
0.95 114 -0.003 0.5639 0.03
0.95 126 0.441 0.5447 0.0406
0.95 138 0.5996 0.58 0.0477
0.95 150 -0.1844 0.5539 0.0321