CLAS Physics Database

Measurement E151M116

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: 0.1314
Q2: 0.0496 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7603

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 -0.0204 0.8961
0.25 42.0 -0.0426 0.7692
0.35 30.0 0.691 0.8226
0.35 42.0 0.0437 0.6948
0.45 42.0 -0.6373 0.6039
0.55 234.0 -0.3025 0.6596
0.55 246.0 -0.2166 0.5893
0.55 258.0 -0.0295 0.5189
0.55 270.0 -0.8539 0.6661
0.65 138.0 0.7008 0.7898
0.65 150.0 -0.442 0.7495
0.65 222.0 1.108 0.684
0.65 234.0 -1.1345 0.4026
0.65 246.0 0.1319 0.497
0.65 258.0 -0.311 0.4264
0.65 270.0 1.0179 0.5517
0.75 126.0 0.5849 0.8839
0.75 138.0 0.2693 0.6463
0.75 150.0 -0.1586 0.5511
0.75 162.0 -0.6216 0.6222
0.75 174.0 -0.722 0.737
0.75 222.0 -0.5304 0.5873
0.75 234.0 -0.6528 0.4631
0.75 246.0 0.1349 0.4134
0.75 258.0 -0.2248 0.4232
0.75 270.0 -0.1798 0.539
0.85 138.0 1.3323 0.649
0.85 150.0 -1.0357 0.6237
0.85 162.0 0.3583 0.7041
0.85 174.0 -0.8893 0.5863
0.85 186.0 0.877 0.7724
0.85 222.0 0.4948 0.6256
0.85 234.0 2.1327 0.5817
0.85 246.0 0.3226 0.436
0.85 258.0 -0.5268 0.3861
0.85 270.0 0.1489 0.4475
0.85 282.0 0.1326 0.6737
0.95 114.0 -1.306 0.4821
0.95 126.0 -0.0568 0.5491
0.95 246.0 -0.5752 0.5177
0.95 258.0 -0.481 0.4101