CLAS Physics Database

Measurement E151M2387

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: 0.0855
Q2: 0.1715 GeV2
W: 1775.0 GeV
Ebeam: 2.999 GeV
ε: 0.8441

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.65 114.0 -0.9014 1.017 0.0719
0.75 90.0 -1.2402 1.0357 0.0948
0.75 102.0 -1.8188 1.0517 0.1353
0.75 198.0 -1.4419 1.0666 0.1088
0.75 210.0 0.6239 1.0455 0.0543
0.75 222.0 -0.6516 0.9127 0.056
0.75 294.0 0.9798 0.9639 0.0771
0.85 78.0 -0.2017 1.0308 0.0334
0.85 90.0 0.3926 0.7588 0.0414
0.85 102.0 -0.4003 0.7916 0.0417
0.85 114.0 0.4436 0.8548 0.044
0.85 186.0 -0.8341 0.9754 0.0675
0.85 198.0 -0.8719 0.7041 0.07
0.85 210.0 0.1771 0.7392 0.0326
0.85 222.0 -0.6105 0.6551 0.0535
0.85 234.0 0.3105 0.9353 0.0375
0.85 246.0 0.1445 1.0176 0.0318
0.95 102.0 -0.923 0.961 0.0733
0.95 114.0 1.5396 0.8085 0.1156
0.95 186.0 0.1013 1.0739 0.0309
0.95 198.0 -0.4338 0.9611 0.0435
0.95 210.0 -0.5705 0.8622 0.0511
0.95 222.0 -0.5861 0.7523 0.052
0.95 234.0 -0.0831 0.9793 0.0306