CLAS Physics Database

Measurement E151M3633

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: 0.0694
Q2: 0.1715 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.812

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 222.0 0.198 0.263 0.0303
0.85 90.0 0.1238 0.2533 0.0301
0.85 102.0 0.3363 0.2512 0.0307
0.85 114.0 -0.4469 0.2305 0.0313
0.85 174.0 -0.1951 0.233 0.0303
0.85 186.0 -0.2983 0.2059 0.0306
0.85 198.0 -0.3263 0.2086 0.0307
0.85 210.0 -0.0588 0.2416 0.03
0.85 222.0 0.0548 0.2686 0.03
0.85 234.0 0.0321 0.2596 0.03