CLAS Physics Database

Measurement E151M2884

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: 0.0106
Q2: 0.0143 GeV2
W: 1595.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5921

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 150.0 -0.4178 0.3037
0.65 222.0 0.3971 0.2961
0.65 234.0 0.1353 0.332
0.75 222.0 -0.5295 0.2776
0.85 222.0 0.0401 0.2912
0.35 42.0 0.1669 0.2609
0.75 222.0 -0.5171 0.2158
0.85 150.0 -0.0668 0.274
0.85 234.0 -0.3231 0.2392