CLAS Physics Database

Measurement E151M776

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: 0.1657
Q2: 0.0496 GeV2
W: 1355.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9585

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 66.0 0.2631 0.5157
0.35 78.0 0.3943 0.5324
0.45 78.0 -0.1127 1.2018
0.45 294.0 -0.6898 0.936
0.55 78.0 -0.0023 1.2102
0.65 78.0 -1.1245 1.2322
0.65 114.0 -2.1572 1.1318
0.65 246.0 0.3715 0.958
0.65 258.0 1.5263 1.1223
0.75 102.0 0.5537 1.5077
0.75 114.0 -0.5196 1.2543
0.75 126.0 0.4877 1.396
0.75 138.0 -3.3763 0.8597
0.75 150.0 -0.8603 1.358
0.75 222.0 0.5917 1.321
0.75 234.0 0.1528 1.0216
0.75 246.0 -0.2539 0.9144
0.75 258.0 1.0037 1.0409
0.75 270.0 -0.7119 1.0874
0.85 114.0 -0.9327 1.3618
0.85 126.0 2.2495 1.3983
0.85 138.0 -0.4521 1.5089
0.85 222.0 -0.8232 1.371
0.85 234.0 -1.3844 1.0351
0.85 246.0 -0.0527 1.1485
0.85 258.0 1.0927 1.0431
0.85 270.0 0.8887 1.3864
0.95 234.0 2.9244 4.1841
0.35 294.0 -0.1385 0.5364
0.45 66.0 1.8883 1.8883
0.45 78.0 0.4863 0.5845
0.45 282.0 -0.5615 0.5551
0.65 114.0 1.8935 0.6024
0.65 126.0 0.7761 0.7221
0.65 246.0 0.1103 0.5325
0.65 258.0 -0.7636 0.5101
0.75 102.0 0.2334 0.5865
0.75 114.0 -0.8516 0.5266
0.75 126.0 0.1873 0.6099
0.75 138.0 0.4872 0.7102
0.75 234.0 -0.5816 0.5245
0.75 246.0 -0.4694 0.4367
0.75 258.0 -0.9486 0.4916
0.85 114.0 0.791 0.6883
0.85 126.0 1.2406 0.7079
0.85 138.0 -0.8612 0.6281
0.85 150.0 -0.6307 0.6454
0.85 234.0 0.6799 0.7341
0.85 246.0 0.0359 0.5483
0.85 258.0 0.0352 0.4601
0.85 270.0 -0.3531 0.6067