CLAS Physics Database

Measurement E151M3641

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: 0.0396
Q2: 0.101 GeV2
W: 1865.0 GeV
Ebeam: 2.999 GeV
ε: 0.8111

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 198.0 0.125 0.2859
0.75 102.0 0.2672 0.2641
0.75 114.0 0.3528 0.2431
0.75 198.0 -0.2347 0.2839
0.75 210.0 0.3058 0.2183
0.75 258.0 0.2359 0.259
0.75 270.0 0.0468 0.2456
0.75 282.0 0.046 0.2675
0.85 102.0 -0.0856 0.225
0.85 114.0 -0.3079 0.187
0.85 126.0 0.084 0.259
0.85 186.0 -0.3465 0.2225
0.85 198.0 -0.2054 0.2081
0.85 210.0 0.0889 0.2257