CLAS Physics Database

Measurement E151M702

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: 0.0524
Q2: 0.0844 GeV2
W: 1685.0 GeV
Ebeam: 1.9889 GeV
ε: 0.7359

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 282.0 1.0858 0.6135
0.65 126.0 0.4307 0.7064
0.65 198.0 0.1629 0.6582
0.65 282.0 0.1529 0.6311
0.65 294.0 -0.0041 0.587
0.75 198.0 -0.6111 0.477
0.75 210.0 0.237 0.5518
0.75 222.0 -0.5218 0.4627
0.75 282.0 -0.3149 0.4556
0.85 114.0 0.284 0.5534
0.85 234.0 0.4 0.6446