CLAS Physics Database

Measurement E151M3246

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: 0.1022
Q2: 0.0415 GeV2
W: 1415.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9455

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 150.0 0.3308 0.2464 0.0307
0.75 234.0 -0.7101 0.1913 0.0332
0.85 222.0 0.0488 0.2485 0.03
0.85 246.0 -0.0716 0.2418 0.03
0.65 234.0 -0.4029 0.2363 0.0311