CLAS Physics Database

Measurement E151M773

Experiment: EG4
Year: 2016

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).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: AUL
εL: 0.6352
Q2: 0.2445 GeV2
W: 1325.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9249

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.65 90.0 -0.1523 0.483 0.0348
0.65 258.0 2.9678 1.1981 0.2755
0.75 102.0 -2.0367 1.2722 0.1904
0.75 114.0 1.6812 1.6454 0.158
0.75 258.0 -1.3904 1.0968 0.1318
0.75 270.0 -0.4193 1.0999 0.049
0.75 282.0 0.0134 1.2085 0.03
0.85 90.0 2.2895 1.7228 0.2134
0.85 102.0 2.4985 1.8355 0.2325
0.85 114.0 -0.1711 1.4979 0.0339
0.85 126.0 -1.3328 1.5683 0.1266
0.85 270.0 2.1616 1.314 0.2017
0.85 294.0 0.3178 1.1923 0.042
0.95 126.0 -5.8836 4.1126 0.5438
0.95 258.0 0.0027 3.8872 0.03
0.95 306.0 -2.5227 3.4292 0.2347
0.65 282.0 -0.0146 0.5094 0.03
0.75 78.0 1.0157 0.5345 0.0731
0.75 90.0 1.147 0.5688 0.081
0.75 102.0 0.0706 0.5272 0.0304
0.75 114.0 -0.92 0.5221 0.0674
0.75 246.0 -0.2995 0.5497 0.0359
0.75 270.0 0.4364 0.54 0.0415
0.75 282.0 0.3527 0.5624 0.0379
0.75 294.0 0.3266 0.5812 0.0369
0.85 78.0 0.9041 0.6019 0.0665
0.85 90.0 -0.0742 0.5857 0.0304
0.85 102.0 -0.6206 0.4598 0.0506
0.85 114.0 -0.5636 0.5475 0.0476
0.85 126.0 0.0375 0.6683 0.0301
0.85 234.0 1.0098 0.6433 0.0727
0.85 258.0 0.3154 0.6317 0.0364
0.85 270.0 -0.4019 0.5126 0.0399
0.85 282.0 -1.0524 0.4212 0.0753
0.85 294.0 -0.0154 0.6128 0.03
0.95 90.0 0.6307 0.9744 0.0511
0.95 102.0 1.1503 1.0187 0.0812
0.95 114.0 0.2573 1.0191 0.0344
0.95 258.0 -0.1447 0.9678 0.0315
0.95 270.0 0.9576 0.9702 0.0696
0.95 282.0 -0.8661 0.8276 0.0643
0.95 294.0 2.167 0.9758 0.1453
0.95 306.0 0.7114 0.8874 0.0555