CLAS Physics Database

Measurement E151M184

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: 0.0106
Q2: 0.0084 GeV2
W: 1475.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6052

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 42.0 -0.1669 0.5393
0.35 54.0 -0.0614 0.5924
0.45 42.0 1.853 0.7146
0.45 54.0 0.4348 0.5814
0.45 66.0 2.4715 2.4715
0.45 234.0 -0.5955 0.622
0.55 42.0 -0.9249 0.6899
0.55 162.0 -0.4679 0.7316
0.55 174.0 -0.6297 0.6661
0.55 210.0 -0.1229 0.6885
0.55 222.0 0.4672 0.6773
0.55 234.0 1.8832 0.5724
0.55 246.0 -0.3098 0.5536
0.65 210.0 -0.1968 0.7326
0.65 222.0 -0.1193 0.5941
0.65 234.0 0.0573 0.6034
0.65 246.0 -0.6877 0.5185
0.75 222.0 1.1194 0.7123
0.75 234.0 0.6099 0.5589
0.75 246.0 0.586 0.5471
0.85 222.0 0.049 0.5251
0.85 234.0 1.0486 0.5895
0.85 246.0 1.2079 0.6409