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Measurement E151M2556

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: 0.0707
Q2: 0.0245 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7886

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.25 42.0 0.0156 0.1944 0.03
0.25 54.0 -0.0215 0.2355 0.03
0.35 30.0 0.3483 0.2361 0.0308
0.35 42.0 0.3067 0.1576 0.0306
0.35 54.0 -0.0202 0.1655 0.03
0.45 18.0 -0.101 0.2603 0.0301
0.45 30.0 0.0559 0.1505 0.03
0.45 42.0 -0.2137 0.1496 0.0303
0.45 54.0 0.0435 0.1904 0.03
0.45 246.0 -0.2385 0.2529 0.0304
0.45 258.0 0.1543 0.2165 0.0302
0.55 30.0 0.0504 0.1789 0.03
0.55 42.0 -0.1277 0.1725 0.0301
0.55 54.0 -0.3528 0.1789 0.0308
0.55 222.0 -0.4753 0.1868 0.0315
0.55 234.0 0.1677 0.1605 0.0302
0.55 246.0 -0.1049 0.1612 0.0301
0.55 258.0 0.1266 0.1578 0.0301
0.65 138.0 0.3157 0.2365 0.0307
0.65 150.0 0.3983 0.1807 0.031
0.65 162.0 -0.1341 0.1868 0.0301
0.65 174.0 -0.233 0.1818 0.0304
0.65 186.0 -0.1538 0.2409 0.0302
0.65 210.0 -0.0057 0.2115 0.03
0.65 222.0 -0.321 0.174 0.0307
0.65 234.0 -0.1025 0.1378 0.0301
0.65 246.0 -0.242 0.129 0.0304
0.65 258.0 0.0269 0.1384 0.03
0.65 270.0 -0.1931 0.251 0.0302
0.75 126.0 0.5489 0.1982 0.0319
0.75 138.0 0.0496 0.2019 0.03
0.75 150.0 -0.1462 0.1885 0.0301
0.75 162.0 0.1295 0.1767 0.0301
0.75 174.0 -0.1519 0.2138 0.0302
0.75 222.0 -0.1217 0.1925 0.0301
0.75 234.0 0.2317 0.1388 0.0304
0.75 246.0 -0.2348 0.1463 0.0304
0.75 258.0 -0.1787 0.1365 0.0302
0.75 270.0 0.0734 0.2133 0.03
0.85 138.0 0.0459 0.2607 0.03
0.85 162.0 -0.0538 0.2373 0.03
0.85 222.0 0.0292 0.1828 0.03
0.85 234.0 -0.1593 0.1352 0.0302
0.85 246.0 -0.0318 0.133 0.03
0.85 258.0 -0.0919 0.142 0.0301
0.85 270.0 -0.2776 0.177 0.0305
0.95 234.0 0.0437 0.2368 0.03
0.95 246.0 -0.3118 0.1938 0.0306
Created in SINP MSU, CLAS Collaboration