CLAS Physics Database

Measurement E151M160

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: 0.1275
Q2: 0.0844 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6236

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 0.4441 0.8881
0.35 54.0 -0.3818 0.8475
0.55 234.0 1.6558 0.8253
0.55 246.0 -0.1519 0.6696
0.55 258.0 0.4624 0.6807
0.65 138.0 1.2713 0.9835
0.65 234.0 0.5811 0.8456
0.65 246.0 1.1605 0.7636
0.65 258.0 0.9515 0.709
0.65 270.0 -0.3466 0.6581
0.75 150.0 1.2006 0.8838
0.75 234.0 -0.1472 0.6702
0.75 246.0 0.3456 0.598
0.75 258.0 0.4564 0.6081
0.75 270.0 -1.2029 0.5223
0.85 234.0 0.4076 0.7611
0.85 246.0 0.6116 0.5387
0.85 258.0 0.484 0.6037
0.85 270.0 0.5499 0.6079
0.85 282.0 -0.6576 0.6318
0.95 258.0 -1.2565 0.4721