CLAS Physics Database

Measurement E151M416

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: 0.0878
Q2: 0.101 GeV2
W: 1535.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6138

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 138.0 -1.2694 0.6669
0.55 222.0 0.0996 0.7405
0.55 234.0 -0.1985 0.6928
0.55 246.0 1.229 0.5873
0.65 138.0 -0.5454 0.7236
0.65 162.0 0.6358 0.7655
0.65 222.0 0.9853 1.204
0.65 234.0 -0.0852 0.5323
0.65 246.0 1.2787 0.5585
0.75 126.0 -1.0661 0.6494
0.75 138.0 0.4648 0.503
0.75 150.0 -1.5913 0.5421
0.75 234.0 -0.9717 0.5121
0.75 246.0 -0.2048 0.4317
0.75 258.0 -0.4983 0.5042
0.85 210.0 2.0651 1.2483
0.85 222.0 0.43 0.5655
0.85 234.0 0.9659 0.5377
0.85 246.0 0.4257 0.4905
0.85 258.0 0.6806 0.5178
0.95 114.0 0.0204 0.9434