CLAS Physics Database

Measurement E151M1551

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: ALL
εL: 0.0277
Q2: 0.0121 GeV2
W: 1415.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8386

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.55 222.0 -0.5024 0.5237 0.0945
0.65 138.0 -1.4535 0.7126 0.0921
0.65 222.0 -0.3258 0.7385 0.0358
0.65 234.0 0.2726 0.6258 0.0342
0.65 246.0 0.3698 0.7527 0.0373
0.75 150.0 -0.6996 0.7959 0.0516
0.75 222.0 0.5465 0.8356 0.0444
0.75 234.0 -2.3025 2.3025 0.1412
0.85 222.0 0.6082 0.8303 0.0472
0.85 234.0 0.6327 0.8281 0.0484
0.85 246.0 -0.3179 0.8045 0.0355
0.55 234.0 2.145 0.6631 0.1283
0.65 222.0 0.271 1.2298 0.0339
0.65 234.0 -1.3386 0.9003 0.0834
0.65 246.0 1.3998 0.7936 0.0867
0.75 138.0 0.1879 1.1369 0.0319
0.75 234.0 -0.9868 0.868 0.0648
0.85 210.0 0.4119 1.0231 0.0384
0.85 222.0 0.5768 0.9103 0.045
0.85 234.0 0.702 0.794 0.0507
0.85 246.0 -0.8029 0.848 0.0555