CLAS Physics Database

Measurement E151M2889

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: 0.0243
Q2: 0.0348 GeV2
W: 1595.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5722

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 210.0 -0.8598 0.1855 0.0346
0.65 222.0 -0.2128 0.3798 0.0303
0.75 222.0 -0.0033 0.3651 0.03
0.75 234.0 0.6982 0.2093 0.0331
0.85 222.0 -0.3958 0.312 0.031
0.85 234.0 0.166 0.3863 0.0302
0.85 246.0 -0.0899 0.3312 0.0301
0.65 234.0 0.177 0.2419 0.0302
0.75 234.0 0.1199 0.2601 0.0301
0.85 222.0 0.0062 0.2491 0.03
0.85 234.0 0.0702 0.2337 0.03