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Measurement E151M2715

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: 0.0489
Q2: 0.0121 GeV2
W: 1325.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9075

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 234.0 -0.322 0.4403 0.0307
0.65 246.0 0.6305 0.2248 0.0325
0.65 258.0 -0.0865 0.2984 0.03
0.75 246.0 -0.0605 0.3694 0.03
0.85 246.0 0.3417 0.3038 0.0308
0.55 246.0 -0.5787 0.2344 0.0322
0.65 234.0 0.0987 0.2411 0.0301
0.65 258.0 -0.2485 0.2592 0.0304
0.75 234.0 -0.1128 0.2481 0.0301
0.75 246.0 0.0697 0.22 0.03
Created in SINP MSU, CLAS Collaboration