CLAS Physics Database

Measurement E151M410

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: 0.0362
Q2: 0.0348 GeV2
W: 1535.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6738

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.45 18.0 -0.5967 0.6811
0.45 30.0 0.3727 0.7086
0.45 42.0 -0.1168 0.6726
0.55 138.0 -0.3704 0.6424
0.55 150.0 -0.5379 0.6736
0.55 222.0 1.0903 0.637
0.55 234.0 0.4003 0.6251
0.55 246.0 1.5125 0.6585
0.65 138.0 -1.0181 0.5661
0.65 150.0 -0.046 0.6417
0.65 210.0 -0.1273 0.5868
0.65 222.0 1.2127 0.5564
0.65 234.0 -0.1022 0.5621
0.75 150.0 -0.5507 0.629
0.75 162.0 -0.2656 0.7151
0.75 222.0 -0.2715 0.592
0.75 234.0 -0.1861 0.5322
0.75 246.0 -0.6724 0.5157
0.85 222.0 -0.2866 0.5475
0.85 234.0 -0.1177 0.5672
0.85 246.0 -0.2769 0.5208
0.35 42.0 -1.1739 0.6008
0.55 210.0 1.1726 1.1703
0.55 222.0 1.0615 1.1739
0.55 246.0 3.6379 3.6379
0.65 126.0 0.5806 1.1072
0.65 138.0 1.017 1.29
0.65 162.0 1.9697 1.4665
0.65 222.0 -1.1181 0.4928
0.65 234.0 0.1488 0.7728
0.65 246.0 0.4681 0.8446
0.75 162.0 -0.2695 0.9019
0.75 210.0 0.6421 1.2138
0.75 222.0 1.3131 1.0906
0.75 234.0 0.475 0.8406
0.75 246.0 0.6295 0.8329
0.85 210.0 0.0857 0.9719
0.85 222.0 -0.5533 0.597
0.85 234.0 1.2551 1.042
0.85 246.0 1.5175 0.9641
0.85 258.0 1.0764 1.0682