CLAS Physics Database

Measurement E151M16

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: 0.7473
Q2: 0.1205 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8436

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 282.0 -0.1923 0.4787
0.45 282.0 0.0465 0.4391
0.45 294.0 -0.1862 0.4798
0.55 270.0 0.0452 0.4414
0.55 282.0 0.1208 0.4128
0.55 294.0 -0.1023 0.4617
0.65 270.0 -0.3585 0.4064
0.65 282.0 0.0712 0.4078
0.65 294.0 -0.1744 0.4648
0.75 270.0 0.6033 0.4674
0.75 282.0 -0.4824 0.3527
0.85 138.0 -0.3089 0.4705
0.95 126.0 -0.2022 0.4073
0.95 138.0 -0.0259 0.3838
0.95 150.0 -0.2241 0.35
0.95 162.0 -0.072 0.3212
0.95 174.0 0.0863 0.3375
0.95 186.0 1.001 0.355
0.95 198.0 0.3472 0.4364
0.95 210.0 0.1484 0.3907
0.95 222.0 0.2205 0.4317