CLAS Physics Database

Measurement E151M3334

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: ALU
εL: 0.1306
Q2: 0.1435 GeV2
W: 1595.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8439

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.85 234.0 -0.0363 0.2165
0.85 246.0 -0.0976 0.2374
0.95 234.0 0.0192 0.2405
0.95 258.0 -0.4317 0.2433
0.65 126.0 -0.1751 0.2555
0.75 126.0 0.2396 0.2542
0.85 90.0 0.3466 0.2209
0.85 222.0 0.2817 0.2407
0.85 234.0 0.0358 0.2252
0.85 246.0 0.0242 0.2374
0.95 258.0 0.1146 0.2608