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Measurement E151M2552

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: 0.0364
Q2: 0.0121 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8024

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.1147 0.2558
0.35 42.0 0.3548 0.1743
0.35 54.0 -0.0922 0.1805
0.45 30.0 0.0981 0.2512
0.45 42.0 -0.3346 0.1777
0.45 54.0 -0.2911 0.1643
0.45 66.0 0.0512 0.2501
0.55 18.0 0.171 0.2409
0.55 30.0 -0.042 0.1533
0.55 42.0 0.2034 0.1447
0.55 54.0 0.0562 0.1788
0.55 66.0 0.1305 0.2872
0.55 210.0 -0.1412 0.2408
0.55 222.0 -0.0095 0.2228
0.55 234.0 -0.1234 0.1492
0.55 246.0 0.1007 0.1942
0.55 258.0 0.3073 0.1845
0.65 42.0 -0.1008 0.1918
0.65 54.0 0.2942 0.166
0.65 138.0 -0.1708 0.2007
0.65 150.0 0.0763 0.1901
0.65 162.0 0.1142 0.2086
0.65 174.0 0.149 0.1985
0.65 198.0 0.1865 0.2525
0.65 210.0 -0.4893 0.1717
0.65 222.0 -0.1699 0.1543
0.65 234.0 -0.3192 0.1457
0.65 246.0 0.0958 0.1352
0.65 258.0 -0.2117 0.1828
0.75 138.0 -0.1009 0.231
0.75 150.0 -0.2773 0.2234
0.75 162.0 -0.01 0.2174
0.75 174.0 -0.068 0.2403
0.75 210.0 -0.1481 0.2008
0.75 222.0 -0.0781 0.1755
0.75 234.0 -0.1859 0.1523
0.75 246.0 0.3084 0.14
0.75 258.0 0.1112 0.1875
0.85 210.0 0.2478 0.2538
0.85 222.0 -0.233 0.1799
0.85 234.0 0.0386 0.1585
0.85 246.0 -0.2867 0.1634
0.85 258.0 0.0225 0.2023
Created in SINP MSU, CLAS Collaboration