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Measurement E151M147

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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 : 0.0084 GeV2
W : 1415 GeV
ε : 0.7185
Ebeam : 1.0539 GeV
εL: 0.0168 

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
0.35 30 -0.3575 0.7924 0.0505
0.35 42 -0.8718 0.6992 0.1036
0.35 54 1.5339 0.8503 0.1771
0.45 30 0.6311 0.8884 0.0778
0.45 42 0.6299 0.6169 0.0777
0.45 54 0.9999 0.7119 0.1176
0.45 222 0.289 0.7745 0.0445
0.45 234 -0.7494 0.6772 0.0904
0.55 18 -0.7932 0.682 0.0951
0.55 30 0.2622 0.724 0.0423
0.55 42 0.2893 0.5538 0.0445
0.55 54 0.5196 0.5992 0.0663
0.55 150 0.6148 0.8767 0.0761
0.55 162 -0.937 0.6722 0.1107
0.55 174 2.8491 2.8491 0.3255
0.55 222 1.176 0.7634 0.1371
0.55 234 2.3506 0.6119 0.2691
0.55 246 0.3719 0.6932 0.0519
0.65 42 -0.9085 0.6421 0.1076
0.65 54 0.8757 0.8376 0.1041
0.65 150 -0.0816 0.7182 0.0314
0.65 162 -0.1351 0.701 0.0337
0.65 210 0.7029 0.7817 0.0854
0.65 222 1.7778 0.6008 0.2045
0.65 234 -0.4477 0.516 0.0591
0.65 246 -0.7864 0.5272 0.0944
0.75 222 0.8299 0.6312 0.0991
0.75 234 -0.0941 0.6794 0.0319
0.75 246 -1.3628 0.5201 0.1579
0.75 258 -0.3152 0.7653 0.0468
0.85 210 2.1428 0.7748 0.2456
0.85 222 1.3213 0.6723 0.1533
0.85 234 0.4763 0.5732 0.0619
0.85 246 0.6358 0.6647 0.0783