CLAS Physics Database

Measurement E151M329

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: 0.0277
Q2: 0.0121 GeV2
W: 1415.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8386

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 222.0 0.2521 0.5539
0.65 138.0 -0.7981 0.5708
0.65 222.0 -0.7286 0.5573
0.65 234.0 0.3169 0.4718
0.65 246.0 -1.0306 0.5466
0.75 150.0 -1.4976 0.5614
0.75 222.0 0.7465 0.6138
0.75 234.0 -0.8105 0.629
0.85 222.0 0.1526 0.6361
0.85 234.0 0.7587 0.5989
0.85 246.0 0.7979 0.5697
0.55 234.0 0.5847 1.1551
0.65 222.0 0.5397 1.1686
0.65 234.0 -0.0381 0.8198
0.65 246.0 0.7003 1.1223
0.75 138.0 0.5173 1.0416
0.75 234.0 -0.1755 0.7136
0.85 210.0 -0.3183 0.7872
0.85 222.0 2.1355 1.0277
0.85 234.0 -0.2643 0.6353
0.85 246.0 0.2996 0.9122