CLAS Physics Database

Measurement E151M445

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: 0.0243
Q2: 0.0348 GeV2
W: 1595.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5722

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 210.0 0.2591 1.2982
0.65 222.0 0.0605 1.0601
0.75 222.0 -1.2599 0.6074
0.75 234.0 1.3884 1.1356
0.85 222.0 0.7403 1.2188
0.85 234.0 0.9167 1.1723
0.85 246.0 -0.7088 0.6395
0.65 234.0 -0.2406 0.6431
0.75 234.0 -0.7458 0.6618
0.85 222.0 -0.2839 0.633
0.85 234.0 0.4503 0.5906