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Measurement E151M2581

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: 0.1059
Q2: 0.0496 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7168

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.4042 0.2066
0.25 54.0 -0.3925 0.2475
0.35 30.0 -0.3714 0.232
0.35 42.0 0.3595 0.1546
0.35 54.0 0.1859 0.2002
0.45 30.0 0.1373 0.2112
0.45 42.0 -0.0347 0.1996
0.45 54.0 -0.5562 0.2175
0.45 246.0 -0.2575 0.2597
0.55 42.0 0.1735 0.2372
0.55 234.0 -0.0787 0.1742
0.55 246.0 0.0571 0.1715
0.55 258.0 0.0395 0.1611
0.65 138.0 0.1315 0.205
0.65 150.0 -0.098 0.2088
0.65 162.0 -0.0243 0.2222
0.65 174.0 -0.2335 0.2349
0.65 222.0 -0.1575 0.185
0.65 234.0 -0.2692 0.1704
0.65 246.0 0.1153 0.1573
0.65 258.0 -0.0851 0.1507
0.65 270.0 -0.1794 0.1892
0.75 126.0 -0.0937 0.2597
0.75 138.0 0.1645 0.1881
0.75 150.0 -0.1608 0.1779
0.75 162.0 -0.1541 0.198
0.75 210.0 0.081 0.2629
0.75 222.0 -0.194 0.1868
0.75 234.0 0.1375 0.1784
0.75 246.0 -0.157 0.1427
0.75 258.0 -0.0154 0.1424
0.75 270.0 0.1472 0.1812
0.85 138.0 0.0597 0.2223
0.85 150.0 -0.1237 0.2379
0.85 162.0 -0.3079 0.2229
0.85 174.0 -0.2333 0.2318
0.85 234.0 -0.0101 0.1682
0.85 246.0 -0.1357 0.1445
0.85 258.0 -0.0806 0.1546
0.85 270.0 0.2481 0.1329
0.95 126.0 -0.1632 0.2598
0.95 234.0 -0.2582 0.2246
0.95 246.0 -0.1784 0.2273
0.95 258.0 0.0173 0.1913
0.95 270.0 -0.6391 0.2063
Created in SINP MSU, CLAS Collaboration