CLAS Physics Database

Measurement E151M2464

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: 0.0541
Q2: 0.0071 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.9208

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 258.0 -0.2216 0.2474 0.0303
0.65 246.0 0.0014 0.2151 0.03
0.65 258.0 0.3658 0.2108 0.0309
0.65 270.0 -0.2399 0.2421 0.0304
0.75 258.0 0.209 0.2572 0.0303