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Measurement E151M159

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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 : 1415 GeV
ε : 0.6408
Ebeam : 1.0539 GeV
εL: 0.1123 

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 0.2845 0.8823 0.0441
0.35 30 0.7584 0.8501 0.0913
0.35 42 1.3332 0.8337 0.1546
0.35 54 0.196 0.8221 0.0374
0.45 42 -0.6071 0.678 0.0753
0.45 246 -0.4841 0.7992 0.0627
0.55 234 0.3753 0.6726 0.0522
0.55 246 0.476 0.6613 0.0619
0.55 258 -0.4571 0.6715 0.06
0.65 150 0.0496 0.7661 0.0305
0.65 210 0.471 0.832 0.0614
0.65 222 0.3541 0.7078 0.0502
0.65 234 0.4758 0.5355 0.0619
0.65 246 0.8166 0.5717 0.0976
0.65 258 -0.6287 0.538 0.0776
0.65 270 -0.654 0.6961 0.0802
0.75 126 -0.119 0.7983 0.0329
0.75 138 -0.1571 0.6828 0.0349
0.75 150 -0.1018 0.7639 0.0322
0.75 162 -0.9897 0.6715 0.1165
0.75 174 -0.0109 0.8208 0.03
0.75 222 1.4336 0.8424 0.1658
0.75 234 1.2639 0.6433 0.1469
0.75 246 -0.2876 0.5202 0.0444
0.75 258 -0.0285 0.466 0.0302
0.75 270 -0.7381 0.5831 0.0892
0.85 150 0.2151 0.8349 0.0387
0.85 234 1.1854 0.6242 0.1382
0.85 246 0.3408 0.5042 0.049
0.85 258 0.6512 0.4807 0.0799
0.85 270 0.2513 0.5772 0.0414
0.95 150 -0.8325 0.5699 0.0994
0.95 246 0.1488 0.5946 0.0344
0.95 258 1.1084 0.5908 0.1296
0.95 270 0.7394 0.6075 0.0893