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Measurement E151M526

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: 0.5639
Q2: 0.205 GeV2
W: 1325.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9114

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.25 66.0 2.0096 2.0096 0.1265
0.35 66.0 1.4781 0.668 0.0952
0.35 78.0 0.1045 0.5679 0.0307
0.45 78.0 0.6831 0.6895 0.0514
0.55 270.0 0.1997 0.5099 0.0324
0.65 102.0 -0.3181 0.6147 0.0358
0.65 258.0 0.1239 0.5758 0.0309
0.65 270.0 -1.1101 0.3638 0.0742
0.65 282.0 0.7323 0.6334 0.0539
0.75 78.0 -0.1563 0.5089 0.0315
0.75 90.0 0.1009 0.4805 0.0306
0.75 102.0 -0.1815 0.4402 0.032
0.75 114.0 0.1765 0.5054 0.0319
0.75 246.0 -0.2929 0.4472 0.0349
0.75 258.0 0.6791 0.5068 0.0512
0.75 270.0 0.2554 0.4651 0.0338
0.75 282.0 0.6638 0.4747 0.0505
0.75 294.0 0.1394 0.5005 0.0312
0.85 90.0 -0.084 0.4148 0.0304
0.85 102.0 0.1943 0.376 0.0323
0.85 114.0 0.2109 0.4242 0.0327
0.85 126.0 -0.1304 0.4874 0.031
0.85 150.0 0.1876 0.6506 0.0321
0.85 222.0 0.2107 0.4976 0.0327
0.85 234.0 -0.0279 0.481 0.03
0.85 246.0 0.2277 0.4911 0.0331
0.85 258.0 0.6536 0.4959 0.05
0.85 270.0 0.4478 0.4621 0.0406
0.85 282.0 0.2912 0.4221 0.0349
0.85 294.0 0.2123 0.3992 0.0327
0.95 90.0 -0.0264 0.5288 0.03
0.95 102.0 0.2308 0.4288 0.0332
0.95 114.0 -0.3575 0.3986 0.0371
0.95 126.0 -0.1946 0.4455 0.0323
0.95 138.0 -0.1944 0.5114 0.0323
0.95 150.0 1.0493 0.6634 0.0708
0.95 246.0 -0.3583 0.4628 0.0372
0.95 258.0 -0.1156 0.4193 0.0308
0.95 270.0 0.8138 0.4444 0.0581
0.95 282.0 -0.1691 0.4497 0.0317
0.95 294.0 0.5953 0.4507 0.0472
Created in SINP MSU, CLAS Collaboration