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Measurement E151M3000

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: 0.4157
Q2: 0.205 GeV2
W: 1385.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8894

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 66.0 0.0558 0.2574
0.35 66.0 0.0147 0.253
0.35 78.0 -0.1498 0.2631
0.65 90.0 -0.1284 0.242
0.65 102.0 -0.0854 0.1864
0.65 114.0 0.0099 0.26
0.65 258.0 -0.3107 0.2606
0.65 270.0 0.1493 0.2579
0.75 90.0 -0.0368 0.2201
0.75 102.0 0.0779 0.1956
0.75 114.0 0.0576 0.2032
0.75 126.0 0.3151 0.2105
0.75 234.0 0.2335 0.2322
0.75 246.0 -0.0597 0.2153
0.75 258.0 -0.0306 0.212
0.75 270.0 -0.1019 0.2145
0.75 282.0 -0.4469 0.2391
0.85 90.0 0.1943 0.2387
0.85 102.0 -0.032 0.1949
0.85 114.0 0.2429 0.2185
0.85 126.0 -0.2241 0.2267
0.85 138.0 -0.0548 0.2791
0.85 222.0 -0.1349 0.254
0.85 234.0 -0.0622 0.2645
0.85 246.0 0.0016 0.2064
0.85 258.0 -0.1475 0.2056
0.85 270.0 -0.0 0.2035
0.85 282.0 -0.4383 0.1924
0.95 66.0 -0.4889 0.2355
0.95 102.0 -0.0834 0.2518
0.95 126.0 0.1362 0.2616
0.95 138.0 -0.2201 0.2517
0.95 222.0 0.01 0.2532
0.95 234.0 0.2192 0.2652
0.95 246.0 0.1184 0.219
0.95 258.0 0.0554 0.1924
0.95 270.0 -0.6054 0.1625
0.95 282.0 0.0508 0.2045
0.95 294.0 -0.5015 0.2036
Created in SINP MSU, CLAS Collaboration