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
0.65 90.0 -0.1245 0.2608
0.75 54.0 0.0224 0.2432
0.75 246.0 -0.4463 0.177
0.75 258.0 -0.3325 0.2609
0.85 54.0 -0.0055 0.2743
0.85 210.0 -0.2733 0.2617
0.85 246.0 -0.1037 0.2224
0.85 258.0 -0.5742 0.2318
0.85 270.0 -0.2234 0.2498
0.85 282.0 0.0068 0.2612
0.85 294.0 0.1269 0.2759
0.95 234.0 -0.1789 0.2657
0.95 270.0 0.4782 0.2209
0.95 294.0 0.3657 0.2106