CLAS Physics Database

Measurement E151M2485

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: 0.0425
Q2: 0.0071 GeV2
W: 1265.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8992

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 246.0 0.028 0.225
0.65 234.0 -0.2103 0.25
0.65 246.0 -0.17 0.1939
0.65 258.0 -0.0721 0.2068
0.65 270.0 -0.114 0.251
0.75 246.0 0.0626 0.19
0.75 258.0 -0.0656 0.2178
0.85 246.0 -0.1355 0.2564