CLAS Physics Database

Measurement E151M201

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: 0.2317
Q2: 0.0245 GeV2
W: 1205.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9559

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.55 258.0 -0.6354 0.2846 0.0501
0.55 270.0 -0.2744 0.2817 0.0373
0.55 282.0 0.8122 0.3011 0.0692
0.65 246.0 -0.2736 0.3082 0.0362
0.65 258.0 0.2 0.2822 0.0351
0.65 270.0 -0.2052 0.2532 0.0363
0.75 150.0 0.2597 0.7096 0.0338
0.75 174.0 0.041 0.6978 0.0301
0.75 186.0 0.0597 0.6895 0.0302
0.75 234.0 0.5177 0.7723 0.0433
0.75 246.0 -0.8363 0.2967 0.0586
0.75 258.0 0.0129 0.4903 0.03
0.75 270.0 -0.3974 0.4196 0.0384
0.85 138.0 -0.2417 0.5972 0.0333
0.85 150.0 -0.6362 0.3763 0.0487
0.85 162.0 -0.1154 0.5866 0.0308
0.85 174.0 1.6225 1.6225 0.1022
0.85 186.0 -0.2476 0.5633 0.0335
0.85 198.0 0.1685 0.5772 0.0317
0.85 222.0 0.6176 0.7482 0.0478
0.65 282.0 1.0513 0.4091 0.0717
0.75 246.0 -0.3855 0.3858 0.0383
0.75 258.0 -0.229 0.3481 0.0332
0.75 270.0 -0.4597 0.3456 0.0414
0.85 150.0 0.6043 0.417 0.048
0.85 162.0 0.1812 0.3937 0.032
0.85 174.0 -0.5284 0.3501 0.0444
0.85 186.0 -0.4071 0.3072 0.0392
0.85 198.0 -0.1025 0.3749 0.0307