CLAS Physics Database

Measurement E151M3600

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: 0.1593
Q2: 0.348 GeV2
W: 1745.0 GeV
Ebeam: 2.999 GeV
ε: 0.8205

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.85 78.0 0.2617 0.2476
0.85 198.0 -0.3991 0.211
0.85 210.0 -0.5608 0.2129
0.85 222.0 0.1287 0.25
0.85 234.0 0.0433 0.2059
0.85 246.0 -0.0665 0.2463
0.85 258.0 -0.2785 0.2406
0.95 162.0 -0.2713 0.2593
0.95 186.0 0.1239 0.2554
0.95 198.0 -0.42 0.2099
0.95 210.0 0.0198 0.2535
0.95 222.0 0.1244 0.2139
0.95 234.0 -0.2431 0.2024
0.95 246.0 0.0062 0.2839
0.95 258.0 0.0237 0.2293