CLAS Physics Database

Measurement E151M1363

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: 0.1796
Q2: 0.101 GeV2
W: 1385.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6553

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty
0.55 246.0 -0.9426 0.7487
0.55 258.0 0.1539 0.9753
0.55 270.0 -0.738 0.7732
0.65 138.0 0.1868 1.0647
0.65 246.0 1.0323 0.6821
0.65 258.0 -0.3647 0.7449
0.65 270.0 -0.6413 0.746
0.75 138.0 -0.8028 0.9492
0.75 186.0 -1.5752 0.8644
0.75 222.0 -0.2762 0.8917
0.75 234.0 -0.1076 0.7837
0.75 246.0 1.2335 0.8257
0.75 258.0 0.7405 0.7028
0.75 270.0 0.3089 0.7275
0.85 126.0 -0.9975 0.8804
0.85 138.0 1.251 0.858
0.85 162.0 1.4434 0.7687
0.85 234.0 0.4897 0.7846
0.85 246.0 -0.6949 0.8491
0.85 258.0 -0.3979 0.6563
0.85 270.0 -0.373 0.6269
0.85 282.0 0.566 0.7652
0.95 162.0 0.6253 0.7613
0.95 258.0 0.7338 0.684