Measurement E151M345

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:	A_UL
ε_L:	0.284
Q²:	0.205 GeV²
W:	1415.0 GeV
E_beam:	1.3383 GeV
ε:	0.6925

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	234.0	0.6166	0.715
0.65	246.0	0.7707	0.738
0.65	258.0	0.4124	0.7041
0.75	102.0	0.4821	0.7647
0.75	114.0	-0.2385	0.7047
0.75	138.0	-0.6246	0.6733
0.75	162.0	-0.1534	0.7538
0.75	234.0	-1.2766	0.5323
0.75	246.0	0.4719	0.6016
0.75	270.0	0.5049	0.6642
0.85	114.0	-0.6175	0.6934
0.85	138.0	-1.0599	0.6459
0.85	246.0	0.0129	0.5896
0.85	258.0	0.3055	0.5911
0.85	270.0	0.2313	0.5875
0.95	78.0	-0.8846	0.5589
0.95	90.0	-0.185	0.5724
0.95	270.0	-0.5313	0.5792
0.95	282.0	-0.5574	0.5255
0.55	246.0	1.8306	1.4157
0.55	258.0	-0.1912	0.9934
0.55	270.0	0.934	1.1909
0.65	246.0	1.7294	1.4432
0.65	258.0	-0.714	0.661
0.75	126.0	-0.434	0.9421
0.75	222.0	0.2152	1.0313
0.75	234.0	0.198	1.0201
0.75	246.0	-0.5827	0.6196
0.75	258.0	-1.3896	0.4683
0.75	270.0	0.603	0.9836
0.85	114.0	-0.6819	0.8946
0.85	150.0	-0.8889	0.764
0.85	270.0	-0.3238	0.7283
0.85	282.0	0.2799	0.9578
0.85	294.0	1.8991	1.2256

CLAS Physics Database