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Measurement E151M2601

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: 0.0849
Q2: 0.0496 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6673

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 42.0 0.1511 0.2138
0.25 54.0 -0.3274 0.2119
0.35 42.0 0.327 0.172
0.35 54.0 -0.088 0.2056
0.45 30.0 -0.0362 0.2159
0.45 42.0 0.1693 0.1819
0.45 54.0 -0.1558 0.2092
0.45 246.0 -0.273 0.2467
0.45 258.0 -0.1182 0.2329
0.55 42.0 -0.3905 0.211
0.55 54.0 0.2897 0.2302
0.55 222.0 -0.3284 0.2041
0.55 234.0 0.0993 0.1903
0.55 246.0 0.0231 0.1858
0.55 258.0 0.1432 0.1822
0.65 138.0 0.1123 0.2486
0.65 150.0 -0.093 0.2422
0.65 162.0 0.1431 0.2208
0.65 174.0 0.2564 0.241
0.65 210.0 -0.3245 0.2273
0.65 222.0 0.2082 0.2055
0.65 234.0 -0.2053 0.1651
0.65 246.0 -0.1064 0.1512
0.65 258.0 -0.2052 0.1625
0.65 270.0 -0.3595 0.1909
0.75 138.0 0.2475 0.2477
0.75 150.0 -0.2612 0.2031
0.75 162.0 0.0721 0.2192
0.75 174.0 0.0566 0.2204
0.75 186.0 -0.0262 0.2196
0.75 222.0 -0.3554 0.1951
0.75 234.0 0.1562 0.1818
0.75 246.0 0.0198 0.1625
0.75 258.0 -0.1381 0.1519
0.75 270.0 0.2739 0.1908
0.85 138.0 -0.365 0.2211
0.85 174.0 -0.211 0.2427
0.85 222.0 -0.221 0.2576
0.85 234.0 -0.0257 0.1608
0.85 246.0 -0.1486 0.1598
0.85 258.0 0.0056 0.1368
0.85 270.0 0.1772 0.1789
0.95 150.0 0.1117 0.2483
0.95 270.0 -0.4048 0.2407
Created in SINP MSU, CLAS Collaboration