CLAS Physics Database

Measurement E151M1195

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: AUL
εL: 0.0286
Q2: 0.0707 GeV2
W: 1865.0 GeV
Ebeam: 2.999 GeV
ε: 0.8183

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.75 198.0 2.4095 1.1395
0.75 270.0 0.3752 0.8102
0.85 102.0 1.1434 1.0007
0.85 114.0 2.0711 0.8475
0.85 186.0 -0.2682 0.9632
0.85 198.0 -0.0138 0.8446
0.85 210.0 1.8343 1.08
0.85 270.0 1.065 1.0086