CLAS Physics Database

Measurement E151M2674

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: 0.8465
Q2: 0.205 GeV2
W: 1235.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8468

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 282.0 -0.2196 0.2409 0.0303
0.75 282.0 -0.2609 0.271 0.0305
0.85 102.0 0.1836 0.2723 0.0302
0.95 102.0 0.2482 0.2623 0.0304
0.65 294.0 -0.3858 0.3338 0.031
0.75 282.0 -0.1314 0.3711 0.0301
0.85 102.0 -0.2536 0.3049 0.0304