CLAS Physics Database

Measurement E151M2626

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: 0.0075
Q2: 0.0059 GeV2
W: 1475.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6087

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.35 42.0 -0.0766 0.2251 0.03
0.35 54.0 -0.1413 0.2275 0.0301
0.45 42.0 0.4632 0.2062 0.0314
0.45 54.0 0.2308 0.1983 0.0304
0.45 246.0 0.1524 0.2519 0.0302
0.55 210.0 -0.0028 0.2497 0.03
0.55 234.0 -0.127 0.2553 0.0301
0.65 222.0 -0.0904 0.2225 0.0301
0.65 234.0 0.1527 0.2459 0.0302
0.65 246.0 0.1928 0.2037 0.0302
0.75 222.0 -0.2192 0.2312 0.0303
0.75 234.0 -0.1631 0.1945 0.0302
0.75 246.0 0.0418 0.221 0.03
0.85 222.0 -0.1844 0.2423 0.0302
0.85 234.0 0.2215 0.2305 0.0303