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Measurement E151M108

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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 : 0.0121 GeV2
W : 1355 GeV
ε : 0.8024
Ebeam : 1.0539 GeV
εL: 0.0364 

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 2.4277 0.8754 0.2778
0.35 42 -0.0158 0.6315 0.0301
0.35 54 0.0228 0.6175 0.0301
0.45 30 0.0979 0.8465 0.032
0.45 42 0.247 0.6493 0.0411
0.45 54 0.2534 0.6213 0.0416
0.45 66 -0.6479 0.79 0.0796
0.55 18 0.1364 0.8169 0.0338
0.55 30 0.6693 0.5288 0.0818
0.55 42 0.3971 0.5073 0.0542
0.55 54 0.195 0.6081 0.0373
0.55 66 -0.1896 0.935 0.0369
0.55 210 0.4144 0.8111 0.0559
0.55 222 0.5513 0.7376 0.0695
0.55 234 0.3425 0.4855 0.0492
0.55 246 0.594 0.6425 0.0739
0.55 258 -0.7364 0.5216 0.089
0.65 42 -0.204 0.6165 0.0379
0.65 54 0.854 0.6044 0.1017
0.65 138 0.0913 0.6841 0.0317
0.65 150 -0.3405 0.6126 0.049
0.65 162 -0.7813 0.6412 0.0938
0.65 174 -0.6223 0.612 0.0769
0.65 198 0.2777 0.8305 0.0436
0.65 210 0.9718 0.6925 0.1146
0.65 222 -0.7981 0.4356 0.0956
0.65 234 -0.1169 0.4783 0.0328
0.65 246 0.4543 0.4321 0.0598
0.65 258 1.0413 0.6039 0.1222
0.75 138 0.6313 0.7964 0.0778
0.75 150 -0.9598 0.6579 0.1132
0.75 162 0.4801 0.7318 0.0623
0.75 174 1.6698 0.8102 0.1923
0.75 210 -0.478 0.5808 0.0621
0.75 222 -0.3274 0.5155 0.0478
0.75 234 0.1382 0.4775 0.0339
0.75 246 -0.5103 0.4119 0.0653
0.75 258 -0.1229 0.5519 0.0331
0.85 210 1.1933 0.8218 0.139
0.85 222 0.3789 0.5572 0.0525
0.85 234 -0.2203 0.4473 0.0391
0.85 246 0.7576 0.5207 0.0913
0.85 258 1.2562 0.617 0.146