CLAS Physics Database

Measurement E151M2866

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: 0.011
Q2: 0.0121 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6467

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 210.0 0.5379 0.2306 0.0319
0.65 222.0 0.0773 0.2691 0.03
0.75 222.0 -0.2847 0.2292 0.0305
0.85 210.0 -0.1997 0.2623 0.0303
0.45 42.0 -0.0076 0.3874 0.03
0.65 222.0 -0.5139 0.2632 0.0317
0.75 210.0 -0.3444 0.355 0.0308
0.75 222.0 0.5131 0.2759 0.0317
0.85 222.0 -0.0558 0.4017 0.03