CLAS Physics Database

Measurement E151M441

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: 0.0126
Q2: 0.0171 GeV2
W: 1595.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5894

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.55 210.0 0.7249 1.305 0.053
0.55 222.0 0.4378 0.6378 0.0407
0.65 222.0 1.9948 1.3993 0.1238
0.75 222.0 -0.2542 1.0116 0.0337
0.75 234.0 3.7756 3.7756 0.2293
0.85 222.0 0.2035 0.8705 0.0324
0.55 234.0 1.1115 0.7356 0.0751
0.75 30.0 -0.4008 0.6933 0.0389
0.75 222.0 0.4085 0.6779 0.0392
0.75 234.0 0.5338 0.7328 0.0446
0.85 222.0 0.1253 0.6441 0.031
0.85 234.0 0.9299 0.6879 0.0649