CLAS Physics Database

Measurement E151M63

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: AUL
εL: 0.0401
Q2: 0.0084 GeV2
W: 1295.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8721

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 42.0 -0.3491 0.6891
0.55 234.0 -0.7969 0.5105
0.55 246.0 1.424 0.488
0.55 258.0 -0.3111 0.5672
0.65 162.0 -0.1655 0.636
0.65 222.0 -0.1116 0.6809
0.65 234.0 0.0923 0.4638
0.65 246.0 -0.0378 0.3889
0.65 258.0 -0.3265 0.4295
0.75 150.0 -0.9171 0.6109
0.75 222.0 0.6921 0.5979
0.75 234.0 -0.6392 0.3875
0.75 246.0 1.1319 0.4722
0.75 258.0 0.14 0.4808
0.85 222.0 0.4152 0.5809
0.85 234.0 0.4958 0.5171
0.85 246.0 0.8826 0.5247
0.85 258.0 0.1607 0.6536