CLAS Physics Database

Measurement E151M412

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: 0.0496
Q2: 0.0496 GeV2
W: 1535.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6604

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.55 138.0 0.136 0.7523 0.0312
0.55 162.0 0.8655 1.3027 0.0601
0.55 222.0 0.8423 1.2148 0.0589
0.55 234.0 -0.1277 0.4817 0.0318
0.55 246.0 0.3845 0.6117 0.0411
0.65 138.0 0.2308 0.5017 0.0612
0.65 150.0 -0.8273 0.6975 0.0594
0.65 210.0 0.4264 0.5735 0.0459
0.65 222.0 0.7693 0.523 0.0571
0.65 234.0 -0.6657 0.4073 0.0564
0.65 246.0 -0.7164 0.366 0.0787
0.75 138.0 -1.1177 0.5742 0.0754
0.75 150.0 -0.0547 0.9319 0.0302
0.75 210.0 2.0672 1.2702 0.128
0.75 222.0 0.1063 0.9922 0.0307
0.75 234.0 0.1651 0.4173 0.0577
0.75 246.0 1.0423 0.4602 0.0719
0.85 126.0 -0.9082 0.6788 0.0624
0.85 210.0 1.1394 1.1197 0.0749
0.85 222.0 0.4393 0.4718 0.0433
0.85 234.0 1.1726 0.44 0.0811
0.85 246.0 -0.0606 0.4541 0.0439
0.85 258.0 0.0131 0.5445 0.0316