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Measurement E151M2474

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: 0.2767
Q2: 0.0415 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8908

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 -0.1487 0.2209
0.15 54.0 -0.0857 0.2381
0.25 42.0 -0.2465 0.1556
0.25 54.0 0.2113 0.1935
0.35 42.0 0.1987 0.1717
0.35 54.0 0.2895 0.1915
0.35 282.0 -0.5725 0.2098
0.45 270.0 0.3933 0.1835
0.45 282.0 0.248 0.1765
0.55 246.0 0.1372 0.2544
0.55 258.0 0.2946 0.1627
0.55 270.0 0.0364 0.1301
0.55 282.0 -0.132 0.1698
0.65 246.0 0.192 0.1731
0.65 258.0 -0.0157 0.1301
0.65 270.0 -0.0478 0.1206
0.65 282.0 -0.0137 0.1562
0.65 294.0 0.1998 0.2345
0.75 150.0 -0.177 0.2085
0.75 162.0 -0.0798 0.2454
0.75 174.0 -0.0118 0.2132
0.75 186.0 -0.0362 0.2223
0.75 198.0 0.088 0.2624
0.75 210.0 0.5565 0.2059
0.75 234.0 0.2692 0.2064
0.75 246.0 -0.0033 0.1655
0.75 258.0 -0.0139 0.1427
0.75 270.0 0.1166 0.1406
0.75 282.0 0.1709 0.1685
0.85 126.0 0.2516 0.2154
0.85 138.0 0.2075 0.1747
0.85 150.0 0.2221 0.1568
0.85 162.0 0.0897 0.1325
0.85 174.0 -0.0256 0.1418
0.85 186.0 0.0045 0.1612
0.85 198.0 -0.038 0.1745
0.85 210.0 0.0682 0.2182
0.85 222.0 -0.0174 0.2216
0.85 234.0 0.1449 0.2195
0.85 246.0 0.1277 0.1838
0.85 258.0 0.2732 0.1625
0.85 270.0 -0.0779 0.1662
0.95 150.0 -0.305 0.2022
0.95 162.0 -0.0746 0.2376
0.95 174.0 -0.1414 0.2052
0.95 186.0 -0.272 0.2127
0.95 198.0 -0.1083 0.2452
Created in SINP MSU, CLAS Collaboration