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Measurement E151M2602

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: 0.098
Q2: 0.0593 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6552

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 -0.1789 0.2372
0.25 42.0 0.1848 0.1774
0.25 54.0 0.3961 0.2122
0.35 30.0 0.332 0.2251
0.35 42.0 0.0466 0.2479
0.35 54.0 0.1226 0.2388
0.45 30.0 -0.2214 0.2215
0.45 54.0 0.2228 0.1903
0.45 258.0 -0.1514 0.2619
0.55 150.0 0.0538 0.2519
0.55 162.0 -0.3839 0.2407
0.55 222.0 -0.2219 0.2352
0.55 234.0 -0.0086 0.1858
0.55 246.0 -0.1543 0.1685
0.55 258.0 -0.1463 0.1686
0.65 138.0 0.2008 0.2398
0.65 150.0 0.3307 0.2309
0.65 162.0 0.3059 0.2628
0.65 222.0 0.1861 0.1951
0.65 234.0 0.4003 0.1556
0.65 246.0 0.219 0.1742
0.65 258.0 -0.1447 0.1481
0.65 270.0 -0.2105 0.2056
0.75 138.0 -0.029 0.2027
0.75 150.0 0.1147 0.1961
0.75 162.0 -0.1312 0.2251
0.75 174.0 -0.4486 0.2415
0.75 210.0 -0.124 0.257
0.75 222.0 -0.0082 0.195
0.75 234.0 -0.1051 0.1991
0.75 246.0 0.0244 0.1474
0.75 258.0 0.0274 0.1519
0.75 270.0 0.0328 0.1906
0.85 138.0 -0.0599 0.2601
0.85 150.0 -0.0256 0.2439
0.85 162.0 -0.5545 0.204
0.85 174.0 -0.2588 0.2121
0.85 234.0 0.1156 0.167
0.85 246.0 -0.1092 0.1669
0.85 258.0 -0.127 0.1505
0.85 270.0 0.123 0.1586
0.95 162.0 0.0041 0.2529
0.95 246.0 0.0187 0.2523
0.95 258.0 -0.1061 0.2217
Created in SINP MSU, CLAS Collaboration