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Measurement E151M482

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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 : 0.205 GeV2
W : 1235 GeV
ε : 0.9361
Ebeam : 1.9889 GeV
εL: 0.9358 

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 66 0.4472 0.6202 0.0406
0.35 66 0.1357 0.446 0.0311
0.35 78 0.5511 0.6096 0.0451
0.45 66 -0.2406 0.5378 0.0334
0.45 78 -0.0884 0.5537 0.0305
0.45 282 -0.4178 0.4478 0.0394
0.45 294 0.1002 0.5651 0.0306
0.55 270 0.1617 0.5568 0.0316
0.55 282 -0.1506 0.5361 0.0314
0.55 294 -0.0118 0.5329 0.03
0.65 270 0.305 0.5048 0.0353
0.65 282 0.4382 0.4623 0.0402
0.65 294 1.6454 1.6454 0.105
0.75 90 0.2825 0.6211 0.0346
0.75 102 -0.44 0.4913 0.0403
0.75 258 -0.6798 0.4383 0.0513
0.75 270 0.688 0.4868 0.0517
0.75 282 0.2057 0.4435 0.0325
0.75 294 0.0082 0.5197 0.03
0.85 78 -0.3202 0.4057 0.0358
0.85 90 -0.4414 0.4119 0.0404
0.85 102 1.716 1.716 0.1092
0.85 114 -0.1867 0.4185 0.0321
0.85 258 -0.1756 0.4596 0.0319
0.85 270 0.5754 0.4939 0.0462
0.85 282 -0.0545 0.4828 0.0302
0.95 66 -0.0634 0.4144 0.0302
0.95 78 -0.1347 0.4814 0.0311
0.95 90 -0.3609 0.378 0.0372
0.95 102 -0.2607 0.377 0.034
0.95 114 -0.3411 0.3927 0.0365
0.95 126 -0.9646 0.3595 0.0662
0.95 138 -0.4519 0.4416 0.0408