CLAS Physics Database

Measurement E151M126

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: 0.0175
Q2: 0.0071 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7671

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 42.0 1.2148 0.7866
0.45 54.0 -1.0825 0.7655
0.55 30.0 0.3841 0.9181
0.55 42.0 1.2567 0.7203
0.55 54.0 0.2201 0.7579
0.55 222.0 -0.3642 0.7635
0.55 234.0 -0.1711 0.8058
0.55 246.0 -0.6924 0.5454
0.65 42.0 1.2456 0.8134
0.65 54.0 -0.4639 0.7036
0.65 150.0 -0.9874 0.7497
0.65 222.0 -0.013 0.6195
0.65 234.0 -0.4755 0.6581
0.65 246.0 -0.142 0.5884
0.65 258.0 -0.0597 0.7414
0.75 222.0 0.1669 0.7253
0.75 234.0 0.6247 0.5999
0.75 246.0 0.3534 0.6195
0.75 258.0 2.7606 2.7606
0.85 222.0 0.2584 0.6945
0.85 234.0 1.6034 0.6275
0.85 246.0 -0.3288 0.7422