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 syst. uncert.
0.85 78.0 0.2617 0.2476 0.0305
0.85 198.0 -0.3991 0.211 0.031
0.85 210.0 -0.5608 0.2129 0.032
0.85 222.0 0.1287 0.25 0.0301
0.85 234.0 0.0433 0.2059 0.03
0.85 246.0 -0.0665 0.2463 0.03
0.85 258.0 -0.2785 0.2406 0.0305
0.95 162.0 -0.2713 0.2593 0.0305
0.95 186.0 0.1239 0.2554 0.0301
0.95 198.0 -0.42 0.2099 0.0312
0.95 210.0 0.0198 0.2535 0.03
0.95 222.0 0.1244 0.2139 0.0301
0.95 234.0 -0.2431 0.2024 0.0304
0.95 246.0 0.0062 0.2839 0.03
0.95 258.0 0.0237 0.2293 0.03