CLAS Physics Database

Measurement E151M141

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: 0.1796
Q2: 0.101 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6553

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.55 246.0 -0.0511 0.6826 0.0306
0.55 258.0 -0.4629 0.8148 0.0606
0.55 270.0 -0.7471 0.6272 0.0901
0.65 138.0 1.2187 0.9598 0.1419
0.65 246.0 0.3735 0.6482 0.052
0.65 258.0 0.678 0.6837 0.0828
0.65 270.0 0.0818 0.6791 0.0314
0.75 138.0 -0.5969 0.8199 0.0742
0.75 186.0 0.5238 0.8002 0.0667
0.75 222.0 -1.3004 0.6633 0.151
0.75 234.0 0.6805 0.7117 0.083
0.75 246.0 0.0306 0.7513 0.0302
0.75 258.0 -0.1897 0.6082 0.037
0.75 270.0 -0.1196 0.6388 0.0329
0.85 126.0 -0.5943 0.7518 0.074
0.85 138.0 -0.2539 0.7417 0.0416
0.85 162.0 -0.7111 0.6801 0.0863
0.85 234.0 0.3693 0.7043 0.0516
0.85 246.0 1.1949 0.7818 0.1392
0.85 258.0 0.0934 0.5927 0.0318
0.85 270.0 1.3096 0.5799 0.152
0.85 282.0 0.2064 0.6918 0.0381
0.95 162.0 -1.1231 0.5672 0.1313
0.95 258.0 2.348 2.348 0.2688