CLAS Physics Database

Measurement E151M1634

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: ALL
εL: 0.0496
Q2: 0.0496 GeV2
W: 1535.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6604

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.55 138.0 -3.1721 3.1721
0.55 162.0 0.3314 1.3378
0.55 222.0 1.5518 0.9079
0.55 234.0 -0.2943 0.6033
0.55 246.0 -0.273 0.6701
0.65 138.0 0.2282 0.7031
0.65 150.0 0.4769 0.9173
0.65 210.0 -0.2492 0.6318
0.65 222.0 -0.3845 0.655
0.65 234.0 -0.3067 0.6114
0.65 246.0 -1.7658 0.4416
0.75 138.0 0.0999 0.7762
0.75 150.0 -0.8268 1.0628
0.75 210.0 0.367 1.1372
0.75 222.0 -1.8073 1.1443
0.75 234.0 -0.9298 0.5756
0.75 246.0 -0.3918 0.5906
0.85 126.0 -1.2579 1.0279
0.85 210.0 0.4471 1.1091
0.85 222.0 0.4965 0.5266
0.85 234.0 -1.1499 0.5502
0.85 246.0 0.6742 0.5258
0.85 258.0 0.309 0.6423