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Measurement E151M2389

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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: ALL,

Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.2445 GeV2
W : 1775 GeV
ε : 0.8281
Ebeam : 2.999 GeV
εL: 0.1128 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALL,
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
ALL Stat. error Syst. error
0.75 198 0.4149 1.1366 0.0425
0.85 78 -0.1519 0.9763 0.032
0.85 102 0.6027 1.0975 0.053
0.85 186 0.4333 1.0933 0.0434
0.85 198 0.6289 0.965 0.0546
0.85 210 1.4101 0.8463 0.1066
0.85 222 1.1777 0.9153 0.0905
0.85 234 -1.2161 0.8411 0.0931
0.85 246 -0.3937 1.0299 0.0414
0.95 198 1.4603 1.0868 0.1101
0.95 210 -1.1326 0.7998 0.0874
0.95 222 -1.3689 0.8547 0.1037
0.95 234 0.8378 0.8675 0.0678
0.95 246 -1.0843 0.9108 0.0842