CLAS Physics Database

Measurement E151M234

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: 0.0879
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] AUL uncertainty syst. uncert.
0.65 234.0 0.1165 0.6468 0.0308
0.65 246.0 0.1095 0.5251 0.0307
0.65 258.0 0.0185 0.5627 0.03
0.65 270.0 -1.0454 0.3619 0.0697
0.75 162.0 0.88 0.9203 0.0609
0.75 234.0 -0.4166 0.6034 0.0391
0.75 246.0 -0.1201 0.5077 0.0309
0.75 258.0 0.0141 0.5149 0.03
0.75 270.0 0.5597 0.7002 0.0451
0.85 162.0 0.5207 0.937 0.0434
0.85 234.0 -0.8482 0.4189 0.0592
0.85 246.0 -0.3901 0.5202 0.0381
0.85 258.0 -0.1379 0.6058 0.0311
0.55 246.0 -0.0476 0.5196 0.0301
0.55 258.0 -0.1435 0.5174 0.0313
0.65 234.0 -0.2072 0.4998 0.0326
0.65 246.0 -0.1126 0.3763 0.0308
0.65 258.0 -0.3698 0.3492 0.0377
0.65 270.0 0.0811 0.4339 0.0304
0.75 150.0 -0.5809 0.4737 0.0468
0.75 234.0 0.5807 0.503 0.0468
0.75 246.0 0.0178 0.3906 0.03
0.75 258.0 0.3907 0.4118 0.0385
0.75 270.0 -0.5037 0.3716 0.0433
0.85 234.0 0.4978 0.4846 0.043
0.85 246.0 -0.0661 0.4469 0.0303
0.85 258.0 0.007 0.3994 0.03