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Measurement E151M2998

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: 0.3289
Q2: 0.1435 GeV2
W: 1385.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9081

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 66.0 -0.0931 0.2802
0.25 66.0 -0.0864 0.2401
0.25 294.0 0.1017 0.2383
0.35 66.0 -0.1164 0.2116
0.35 78.0 0.6759 0.1807
0.35 294.0 -0.1196 0.2375
0.35 306.0 0.1724 0.2643
0.45 66.0 -0.0433 0.2294
0.45 78.0 0.1183 0.2126
0.45 282.0 -0.1412 0.2269
0.45 294.0 -0.3272 0.2163
0.55 258.0 0.3905 0.2372
0.55 282.0 -0.1699 0.2562
0.65 102.0 -0.0447 0.2363
0.65 114.0 -0.0457 0.2054
0.65 126.0 -0.0467 0.2745
0.65 234.0 -0.0428 0.2623
0.65 246.0 0.1442 0.2695
0.65 258.0 -0.3916 0.2186
0.65 270.0 0.0461 0.2493
0.75 90.0 -0.2085 0.19
0.75 102.0 0.1655 0.1746
0.75 114.0 0.0377 0.1959
0.75 126.0 -0.1954 0.1839
0.75 138.0 -0.016 0.2056
0.75 234.0 0.4801 0.2196
0.75 246.0 -0.0666 0.2035
0.75 258.0 -0.1072 0.2024
0.75 270.0 -0.1582 0.186
0.75 282.0 0.1875 0.2422
0.85 78.0 0.0316 0.251
0.85 90.0 0.0793 0.2819
0.85 102.0 -0.1306 0.1905
0.85 114.0 0.2571 0.1603
0.85 126.0 -0.2408 0.196
0.85 138.0 0.1935 0.2087
0.85 150.0 -0.0982 0.2517
0.85 210.0 0.3654 0.2369
0.85 222.0 -0.6399 0.1598
0.85 234.0 -0.2221 0.1867
0.85 246.0 0.1515 0.191
0.85 258.0 -0.1946 0.1824
0.85 270.0 0.0478 0.1774
0.85 282.0 0.038 0.2382
0.95 78.0 0.0546 0.2624
0.95 126.0 -0.1321 0.2708
0.95 138.0 0.6078 0.2072
0.95 150.0 -0.4647 0.2501
0.95 210.0 -0.5346 0.24
0.95 222.0 -0.416 0.2147
0.95 234.0 0.4419 0.2072
0.95 246.0 0.1149 0.1965
0.95 258.0 -0.1843 0.2147
0.95 270.0 0.4508 0.162
0.95 282.0 0.1818 0.1918
Created in SINP MSU, CLAS Collaboration