CLAS Physics Database

Measurement E151M3352

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: 0.0341
Q2: 0.0415 GeV2
W: 1655.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8403

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 78.0 0.2312 0.2511 0.0304
0.45 270.0 0.1811 0.2366 0.0302
0.55 222.0 -0.1021 0.26 0.0301
0.55 258.0 0.1851 0.243 0.0302
0.55 270.0 0.1781 0.2279 0.0302
0.65 126.0 -0.151 0.2468 0.0302
0.65 198.0 0.0291 0.243 0.03
0.65 210.0 0.1722 0.2569 0.0302
0.75 66.0 -0.2468 0.2655 0.0304
0.75 210.0 0.0795 0.2675 0.03
0.75 234.0 0.0007 0.2682 0.03
0.75 270.0 0.3521 0.2402 0.0308
0.75 282.0 0.1177 0.2125 0.0301
0.85 114.0 -0.2791 0.2418 0.0305
0.85 210.0 -0.038 0.2194 0.03
0.85 222.0 -0.1471 0.2501 0.0301
0.35 78.0 0.2453 0.24 0.0304
0.45 270.0 -0.0334 0.2627 0.03
0.45 282.0 -0.3907 0.2207 0.031
0.55 222.0 0.0163 0.2589 0.03
0.55 258.0 -0.0702 0.2235 0.03
0.55 270.0 -0.4294 0.2018 0.0312
0.65 126.0 -0.1207 0.1893 0.0301
0.65 210.0 0.0089 0.2353 0.03
0.65 222.0 -0.0653 0.2544 0.03
0.75 114.0 -0.1619 0.2515 0.0302
0.75 210.0 -0.0388 0.2215 0.03
0.75 222.0 -0.4355 0.2174 0.0312
0.75 270.0 0.1031 0.2542 0.0301
0.75 282.0 0.1971 0.2138 0.0303
0.85 102.0 -0.0971 0.2614 0.0301
0.85 126.0 0.1476 0.2247 0.0301
0.85 210.0 0.2834 0.1977 0.0305
0.85 222.0 0.2677 0.2599 0.0305