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Measurement E151M2716

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: 0.0579
Q2: 0.0143 GeV2
W: 1325.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9061

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 246.0 -0.0116 0.2336
0.55 258.0 0.6847 0.2199
0.65 126.0 -0.1285 0.2717
0.65 138.0 0.2372 0.256
0.65 150.0 0.1562 0.2308
0.65 222.0 0.0799 0.2538
0.65 234.0 -0.095 0.2068
0.65 246.0 -0.198 0.1899
0.65 258.0 -0.2886 0.2304
0.75 138.0 -0.0786 0.1963
0.75 150.0 0.1036 0.2573
0.75 174.0 0.1019 0.2404
0.75 222.0 0.0377 0.2439
0.75 234.0 0.1745 0.1881
0.75 246.0 0.1684 0.2163
0.75 258.0 0.2563 0.2364
0.85 222.0 -0.3365 0.2313
0.85 234.0 -0.1185 0.1998
0.85 246.0 0.0376 0.1745
0.85 258.0 -0.1762 0.2241
0.45 42.0 -0.6406 0.2451
0.55 234.0 -0.0126 0.3776
0.55 246.0 0.072 0.3269
0.55 258.0 0.1365 0.4212
0.65 138.0 -0.0346 0.3372
0.65 210.0 0.5998 0.3325
0.65 222.0 0.3031 0.3063
0.65 234.0 0.2661 0.2572
0.65 246.0 -0.3559 0.2634
0.65 258.0 -0.018 0.3267
0.75 138.0 0.0869 0.4159
0.75 150.0 0.5052 0.3258
0.75 222.0 -0.293 0.3293
0.75 234.0 -0.2491 0.2712
0.75 246.0 0.0096 0.2607
0.75 258.0 0.1896 0.2911
0.85 222.0 -0.1387 0.2888
0.85 234.0 -0.3075 0.281
0.85 246.0 -0.1742 0.2781
0.85 258.0 0.5318 0.2358
Created in SINP MSU, CLAS Collaboration