CLAS Physics Database

Measurement E151M2678

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: 0.0879
Q2: 0.0143 GeV2
W: 1265.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9379

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 234.0 0.1342 0.3434 0.0301
0.65 246.0 0.0327 0.2761 0.03
0.65 258.0 -0.1997 0.306 0.0303
0.65 270.0 0.5139 0.3202 0.0317
0.75 162.0 -0.4246 0.2785 0.0312
0.75 234.0 0.2746 0.3598 0.0305
0.75 246.0 -0.358 0.29 0.0308
0.75 258.0 -0.3401 0.2777 0.0308
0.75 270.0 -0.6574 0.1978 0.0328
0.85 162.0 -0.7522 0.2178 0.0336
0.85 234.0 0.2332 0.3471 0.0304
0.85 246.0 -0.0391 0.3518 0.03
0.85 258.0 -0.2742 0.3372 0.0305
0.55 246.0 -0.2245 0.269 0.0303
0.55 258.0 -0.0619 0.2723 0.03
0.65 234.0 0.1381 0.2623 0.0301
0.65 246.0 -0.2905 0.1942 0.0306
0.65 258.0 0.047 0.1882 0.03
0.65 270.0 0.3674 0.2185 0.0309
0.75 150.0 -0.2187 0.2501 0.0303
0.75 234.0 -0.0669 0.2744 0.03
0.75 246.0 -0.0712 0.2087 0.03
0.75 258.0 -0.0639 0.2241 0.03
0.75 270.0 -0.2295 0.2044 0.0303
0.85 234.0 0.0725 0.2673 0.03
0.85 246.0 -0.0698 0.2458 0.03
0.85 258.0 0.2075 0.2169 0.0303