CLAS Physics Database

Measurement E151M3648

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: ALU
εL: 0.0258
Q2: 0.0707 GeV2
W: 1895.0 GeV
Ebeam: 2.999 GeV
ε: 0.7999

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.75 114.0 -0.0028 0.2586
0.75 210.0 -0.1326 0.2656
0.75 282.0 -0.1391 0.2332
0.85 126.0 0.2117 0.2644
0.85 186.0 -0.2911 0.235
0.85 198.0 0.0387 0.2302
0.85 270.0 -0.4922 0.2156