CLAS Physics Database

Measurement E151M2562

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: 0.1742
Q2: 0.0707 GeV2
W: 1355.0 GeV
Ebeam: 1.0539 GeV
ε: 0.7364

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.25 42.0 0.0079 0.2367 0.03
0.35 30.0 0.1321 0.2317 0.0301
0.35 42.0 0.1128 0.2229 0.0301
0.45 42.0 -0.7561 0.1851 0.0336
0.45 258.0 -0.3146 0.2497 0.0307
0.55 234.0 -0.0643 0.2605 0.03
0.55 246.0 0.0005 0.2268 0.03
0.55 258.0 -0.2438 0.1674 0.0304
0.55 270.0 0.207 0.1882 0.0303
0.65 138.0 -0.1058 0.2646 0.0301
0.65 150.0 0.0052 0.2381 0.03
0.65 234.0 -0.0018 0.182 0.03
0.65 246.0 -0.1441 0.1602 0.0301
0.65 258.0 0.0497 0.1387 0.03
0.65 270.0 -0.4547 0.2021 0.0313
0.75 138.0 0.1719 0.2236 0.0302
0.75 150.0 0.162 0.1739 0.0302
0.75 162.0 0.0959 0.1886 0.0301
0.75 174.0 -0.1843 0.2076 0.0302
0.75 198.0 0.0414 0.229 0.03
0.75 234.0 -0.1898 0.1626 0.0302
0.75 246.0 -0.2514 0.1501 0.0304
0.75 258.0 -0.0416 0.1517 0.03
0.75 270.0 -0.148 0.1518 0.0301
0.85 126.0 -0.0886 0.2469 0.0301
0.85 138.0 -0.4512 0.1829 0.0313
0.85 150.0 0.2177 0.1958 0.0303
0.85 162.0 -0.1834 0.1901 0.0302
0.85 174.0 0.0418 0.1991 0.03
0.85 186.0 -0.3749 0.1987 0.0309
0.85 198.0 -0.1802 0.2473 0.0302
0.85 234.0 -0.0633 0.1865 0.03
0.85 246.0 -0.2042 0.147 0.0303
0.85 258.0 -0.0945 0.1505 0.0301
0.85 270.0 0.001 0.1381 0.03
0.85 282.0 0.0184 0.1909 0.03
0.95 102.0 -0.2345 0.2489 0.0304
0.95 114.0 0.2485 0.2541 0.0304
0.95 138.0 0.4368 0.2203 0.0312
0.95 174.0 0.1233 0.2581 0.0301
0.95 234.0 -0.2748 0.2199 0.0305
0.95 246.0 -0.1176 0.2501 0.0301
0.95 258.0 -0.1676 0.1908 0.0302
0.95 270.0 -0.219 0.1966 0.0303