CLAS Physics Database

Measurement E151M1186

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: AUL
εL: 0.044
Q2: 0.101 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.8284

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.75 102.0 1.4707 1.0506 0.1116
0.75 114.0 -0.1026 0.9176 0.0309
0.75 198.0 0.5644 0.9743 0.051
0.75 210.0 0.0857 0.8249 0.0306
0.75 222.0 0.7777 0.9397 0.0643
0.75 270.0 0.2406 0.8658 0.0348
0.75 282.0 -0.0242 0.8707 0.0301
0.85 90.0 -0.1008 0.8514 0.0309
0.85 102.0 -1.1131 0.5915 0.0867
0.85 114.0 1.014 0.8161 0.08
0.85 126.0 0.1919 0.9566 0.0331
0.85 186.0 -0.1262 0.7622 0.0314
0.85 198.0 0.0968 0.778 0.0308
0.85 210.0 -0.2332 0.7405 0.0345
0.85 222.0 0.4451 0.8341 0.0443
0.85 270.0 1.7864 1.0138 0.134
0.95 210.0 1.141 0.9961 0.0886