CLAS Physics Database

Measurement E151M3513

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: 0.4193
Q2: 0.5925 GeV2
W: 1535.0 GeV
Ebeam: 2.999 GeV
ε: 0.8598

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 90.0 -0.1245 0.2608 0.0301
0.75 54.0 0.0224 0.2432 0.03
0.75 246.0 -0.4463 0.177 0.0313
0.75 258.0 -0.3325 0.2609 0.0307
0.85 54.0 -0.0055 0.2743 0.03
0.85 210.0 -0.2733 0.2617 0.0305
0.85 246.0 -0.1037 0.2224 0.0301
0.85 258.0 -0.5742 0.2318 0.0321
0.85 270.0 -0.2234 0.2498 0.0303
0.85 282.0 0.0068 0.2612 0.03
0.85 294.0 0.1269 0.2759 0.0301
0.95 234.0 -0.1789 0.2657 0.0302
0.95 270.0 0.4782 0.2209 0.0315
0.95 294.0 0.3657 0.2106 0.0309