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Measurement E151M2489

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: 0.0837
Q2: 0.0143 GeV2
W: 1265.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8925

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.2869 0.2317
0.25 54.0 -0.0199 0.2511
0.35 42.0 0.0974 0.1949
0.35 54.0 -0.0338 0.1894
0.35 66.0 0.1176 0.2473
0.45 30.0 0.2025 0.2141
0.45 42.0 -0.1301 0.1688
0.45 54.0 -0.1994 0.1872
0.45 258.0 0.0608 0.2428
0.45 270.0 -0.1635 0.2062
0.55 30.0 0.0444 0.2475
0.55 42.0 0.1759 0.1768
0.55 54.0 0.0811 0.2085
0.55 234.0 0.1476 0.1897
0.55 246.0 -0.0287 0.1597
0.55 258.0 -0.127 0.1351
0.55 270.0 0.0742 0.1557
0.55 282.0 -0.2081 0.2231
0.65 138.0 0.0671 0.2344
0.65 150.0 0.1696 0.2285
0.65 162.0 0.1136 0.1964
0.65 174.0 -0.0181 0.1846
0.65 186.0 -0.1937 0.2214
0.65 198.0 -0.3008 0.243
0.65 222.0 0.1652 0.2114
0.65 234.0 -0.0837 0.1456
0.65 246.0 0.1137 0.119
0.65 258.0 0.1228 0.1082
0.65 270.0 -0.1555 0.1404
0.65 282.0 -0.0267 0.2138
0.75 138.0 -0.1767 0.1815
0.75 150.0 0.327 0.1676
0.75 162.0 -0.4001 0.1533
0.75 174.0 -0.1088 0.1637
0.75 186.0 -0.1812 0.2085
0.75 198.0 -0.3006 0.1957
0.75 210.0 0.108 0.1958
0.75 222.0 0.0063 0.1829
0.75 234.0 -0.0325 0.1429
0.75 246.0 0.1286 0.1152
0.75 258.0 0.135 0.1072
0.75 270.0 -0.0047 0.1452
0.75 282.0 -0.1273 0.2183
0.85 138.0 0.3585 0.2174
0.85 150.0 0.2475 0.2306
0.85 162.0 0.2654 0.2083
0.85 174.0 -0.3487 0.1983
0.85 186.0 -0.0165 0.2228
0.85 198.0 0.135 0.2455
0.85 222.0 -0.2654 0.1851
0.85 234.0 -0.0467 0.1545
0.85 246.0 -0.1745 0.1249
0.85 258.0 -0.3571 0.1608
0.85 270.0 0.2456 0.199
Created in SINP MSU, CLAS Collaboration