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Measurement E151M178

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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 : 0.0707 GeV2
W : 1445 GeV
ε : 0.5838
Ebeam : 1.0539 GeV
εL: 0.089 

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
0.15 42 0.0961 0.8507 0.0319
0.25 54 -0.0301 0.8536 0.0302
0.35 42 -1.2524 0.6214 0.1456
0.45 30 1.3606 0.8077 0.1577
0.45 42 -0.7524 0.692 0.0907
0.45 54 0.6136 0.8174 0.076
0.45 234 -1.5927 0.5811 0.1837
0.45 258 -0.1451 0.7849 0.0342
0.55 222 -0.5067 0.7206 0.065
0.55 234 0.2256 0.5859 0.0395
0.55 246 0.3226 0.6243 0.0474
0.55 258 -0.3271 0.688 0.0478
0.55 270 0.4275 0.774 0.0571
0.65 150 0.703 0.8005 0.0854
0.65 162 -1.968 0.557 0.2259
0.65 222 0.9836 0.7442 0.1159
0.65 234 0.4399 0.6799 0.0583
0.65 246 0.9362 0.6566 0.1107
0.65 258 0.7327 0.641 0.0886
0.65 270 0.247 0.7298 0.0411
0.75 138 -0.8278 0.6463 0.0988
0.75 174 -0.4852 0.7216 0.0628
0.75 222 0.2216 0.726 0.0392
0.75 234 -0.0949 0.6367 0.0319
0.75 246 0.6116 0.5225 0.0758
0.75 258 0.5987 0.5917 0.0744
0.75 270 0.3663 0.6515 0.0513
0.85 234 -0.2105 0.6424 0.0384
0.85 246 0.7785 0.5642 0.0935
0.85 258 1.0199 0.4963 0.1199
0.85 270 1.1447 0.6015 0.1336
0.95 138 -0.4163 0.5987 0.0561