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Measurement E151M2619

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: 0.0583
Q2: 0.0415 GeV2
W: 1445.0 GeV
Ebeam: 1.0539 GeV
ε: 0.622

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 -0.421 0.1918
0.25 54.0 -0.4494 0.2344
0.35 42.0 -0.0114 0.2042
0.35 54.0 0.1586 0.1714
0.45 30.0 -0.2629 0.2521
0.45 42.0 0.1937 0.2098
0.45 54.0 -0.0691 0.1726
0.45 66.0 -0.0908 0.2688
0.45 234.0 0.2752 0.2222
0.45 246.0 0.0777 0.1908
0.45 258.0 -0.4153 0.1925
0.55 42.0 -0.022 0.2084
0.55 54.0 0.4547 0.199
0.55 150.0 0.0532 0.2609
0.55 162.0 -0.2117 0.2252
0.55 234.0 0.2297 0.1813
0.55 246.0 0.1444 0.1604
0.55 258.0 -0.5191 0.16
0.65 150.0 -0.003 0.2228
0.65 162.0 0.2157 0.2033
0.65 174.0 -0.5475 0.1902
0.65 186.0 -0.2424 0.2447
0.65 210.0 -0.2256 0.237
0.65 222.0 -0.1114 0.1783
0.65 234.0 -0.0408 0.1727
0.65 246.0 0.0664 0.1657
0.65 258.0 0.0627 0.1622
0.75 138.0 -0.1731 0.2191
0.75 150.0 0.1014 0.2255
0.75 162.0 -0.1395 0.2211
0.75 174.0 0.0503 0.2469
0.75 198.0 -0.0753 0.2636
0.75 222.0 -0.0507 0.1823
0.75 234.0 0.1401 0.1741
0.75 246.0 0.1436 0.1487
0.75 258.0 -0.0511 0.1557
0.75 270.0 -0.5598 0.1721
0.85 162.0 0.1484 0.239
0.85 222.0 -0.1121 0.1865
0.85 234.0 -0.2159 0.2114
0.85 246.0 0.0977 0.1772
0.85 258.0 0.2226 0.1513
0.85 270.0 -0.3129 0.1881
0.95 246.0 -0.0313 0.2557
Created in SINP MSU, CLAS Collaboration