CLAS Physics Database

Measurement E151M57

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: 0.4755
Q2: 0.1205 GeV2
W: 1265.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7913

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 -0.1119 0.7045
0.55 270.0 -0.0223 0.5278
0.55 282.0 1.3081 0.6274
0.65 258.0 -0.2182 0.5792
0.65 270.0 0.053 0.4398
0.65 282.0 -0.0516 0.4825
0.65 294.0 -0.1352 0.6326
0.75 258.0 0.0609 0.5298
0.75 270.0 -0.3932 0.4811
0.75 282.0 -0.3444 0.4778
0.75 294.0 -0.5476 0.5304
0.85 114.0 0.251 0.5715
0.85 138.0 0.5392 0.5474
0.85 150.0 -0.2691 0.5426
0.85 162.0 0.4926 0.5804
0.85 174.0 -0.1715 0.6206
0.85 258.0 -0.8851 0.4426
0.85 270.0 -0.3825 0.4455
0.85 282.0 -0.5012 0.4403
0.85 294.0 -0.2392 0.5743
0.95 162.0 -0.1271 0.5069
0.95 174.0 0.1617 0.4867
0.95 198.0 0.0851 0.5093
0.95 210.0 -0.0378 0.5003