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Measurement E151M2557

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: ALU
εL: 0.0829
Q2: 0.0291 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7833

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.2036 0.1781
0.25 54.0 -0.1524 0.228
0.35 30.0 -0.1704 0.1831
0.35 42.0 0.0295 0.1698
0.35 54.0 0.2468 0.1898
0.45 30.0 -0.2392 0.1952
0.45 42.0 -0.258 0.1454
0.45 54.0 0.1698 0.1776
0.45 258.0 -0.1005 0.2418
0.55 30.0 0.5443 0.1774
0.55 42.0 -0.1203 0.1541
0.55 54.0 0.0407 0.1547
0.55 222.0 -0.3201 0.2464
0.55 234.0 0.0461 0.1757
0.55 246.0 0.1286 0.1723
0.55 258.0 0.1123 0.182
0.55 270.0 -0.3362 0.2269
0.65 138.0 0.185 0.1985
0.65 150.0 -0.05 0.2125
0.65 162.0 0.3595 0.1964
0.65 174.0 0.3724 0.2365
0.65 222.0 -0.0978 0.1806
0.65 234.0 0.1072 0.1629
0.65 246.0 0.24 0.1548
0.65 258.0 -0.0985 0.1466
0.65 270.0 0.2294 0.1756
0.75 126.0 0.3277 0.2346
0.75 138.0 0.0713 0.1854
0.75 150.0 0.1068 0.1945
0.75 162.0 -0.001 0.1677
0.75 174.0 -0.2067 0.2083
0.75 222.0 -0.0528 0.184
0.75 234.0 -0.0057 0.1679
0.75 246.0 -0.001 0.147
0.75 258.0 -0.059 0.1368
0.75 270.0 -0.0228 0.201
0.85 150.0 -0.3717 0.2132
0.85 222.0 -0.0243 0.1802
0.85 234.0 0.0717 0.1473
0.85 246.0 0.0151 0.1643
0.85 258.0 -0.0692 0.1461
0.85 270.0 -0.0035 0.1525
0.95 246.0 -0.0423 0.2441
Created in SINP MSU, CLAS Collaboration