CLAS Physics Database

Measurement E151M3608

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: 0.0737
Q2: 0.1435 GeV2
W: 1775.0 GeV
Ebeam: 2.999 GeV
ε: 0.8502

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 54.0 0.1645 0.2676
0.65 114.0 -0.1801 0.2411
0.65 186.0 0.0925 0.2745
0.65 198.0 -0.4866 0.217
0.65 222.0 -0.1232 0.276
0.65 282.0 -0.1328 0.2194
0.65 294.0 0.0733 0.2808
0.75 102.0 0.0767 0.2418
0.75 186.0 -0.009 0.2607
0.75 198.0 -0.0189 0.2328
0.75 210.0 -0.0985 0.2225
0.75 222.0 -0.3413 0.2472
0.75 234.0 -0.253 0.2374
0.75 270.0 -0.1378 0.2397
0.75 282.0 -0.3194 0.2091
0.75 294.0 -0.353 0.2432
0.85 90.0 0.0455 0.202
0.85 102.0 0.0961 0.1725
0.85 114.0 -0.0063 0.1805
0.85 126.0 -0.1793 0.2513
0.85 174.0 0.0845 0.2506
0.85 186.0 -0.0688 0.2241
0.85 198.0 -0.0629 0.191
0.85 210.0 0.215 0.1942
0.85 222.0 -0.0978 0.1882
0.85 234.0 0.0624 0.2509
0.85 246.0 0.0467 0.2285
0.95 198.0 0.1159 0.2617
0.95 210.0 -0.1366 0.2107
0.95 222.0 0.0157 0.2377
0.95 234.0 -0.1858 0.2519