CLAS Physics Database

Measurement E151M2902

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: 0.0167
Q2: 0.0291 GeV2
W: 1625.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5197

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.85 234.0 0.4752 0.2515 0.0315
0.75 234.0 0.3717 0.3777 0.0309
0.85 222.0 -0.1138 0.3793 0.0301
0.85 246.0 -0.181 0.4011 0.0302