CLAS Physics Database

Measurement E151M957

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: 1.2681
Q2: 0.5925 GeV2
W: 1235.0 GeV
Ebeam: 2.999 GeV
ε: 0.9304

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 294.0 0.1169 0.6758
0.45 282.0 0.692 0.7576
0.55 78.0 0.6028 0.7437
0.55 270.0 -0.5177 0.5924
0.65 66.0 -0.0376 0.6891
0.65 78.0 0.124 0.7089
0.65 90.0 -0.4971 0.5799
0.65 282.0 2.2402 2.2402
0.75 90.0 -0.3519 0.5355
0.75 270.0 1.3264 0.7453
0.75 282.0 -0.0693 0.562
0.85 66.0 -0.6391 0.4926
0.85 90.0 -0.2417 0.6159