CLAS Physics Database

Measurement E151M2769

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: 0.3102
Q2: 0.1715 GeV2
W: 1385.0 GeV
Ebeam: 1.3383 GeV
ε: 0.7512

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 234.0 0.7941 0.1781 0.0339
0.75 246.0 0.3226 0.3258 0.0307
0.85 282.0 -0.2081 0.314 0.0303
0.95 282.0 -0.0956 0.3878 0.0301
0.65 246.0 0.1531 0.2356 0.0302
0.75 258.0 0.1816 0.2746 0.0302
0.75 270.0 0.0955 0.2569 0.0301
0.85 138.0 0.3202 0.2445 0.0307
0.85 246.0 -0.2403 0.2598 0.0304
0.85 258.0 0.5992 0.2099 0.0323
0.85 270.0 0.2752 0.2323 0.0305
0.95 258.0 0.1723 0.2699 0.0302