CLAS Physics Database

Measurement E151M18

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: 0.8733
Q2: 0.1715 GeV2
W: 1205.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7985

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 282.0 1.0657 0.5599
0.35 294.0 -0.0297 0.4888
0.45 282.0 0.1286 0.4177
0.45 294.0 0.5145 0.4838
0.55 270.0 0.9463 0.443
0.55 282.0 -0.4779 0.353
0.55 294.0 1.0768 0.5486
0.65 270.0 -0.1532 0.3858
0.65 282.0 -0.0875 0.3919
0.65 294.0 1.1493 0.5181
0.75 270.0 0.2645 0.4352
0.75 294.0 -0.2872 0.4695
0.85 126.0 -0.6234 0.4365
0.85 138.0 0.1985 0.4957
0.85 150.0 -0.2608 0.4606
0.85 222.0 -0.083 0.4427
0.95 114.0 0.6151 0.4793
0.95 138.0 -0.2254 0.3514
0.95 150.0 -0.6422 0.3412
0.95 162.0 -0.4751 0.338
0.95 174.0 -0.3399 0.3324
0.95 186.0 0.4034 0.4104
0.95 198.0 -0.3704 0.3759
0.95 222.0 0.7413 0.3723