Measurement E151M866

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:	0.193
Q²:	0.1715 GeV²
W:	1535.0 GeV
E_beam:	2.2596 GeV
ε:	0.8673

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	282.0	-0.0433	0.4904
0.75	114.0	-1.451	0.605
0.75	126.0	-0.1796	0.7697
0.75	138.0	-1.2635	0.6458
0.75	234.0	0.8596	0.6884
0.75	246.0	-0.2356	0.7497
0.75	258.0	1.1556	0.8032
0.85	78.0	-0.3205	0.6993
0.85	114.0	-0.1502	0.7668
0.85	222.0	0.8395	0.875
0.85	234.0	-0.0439	0.6967
0.85	246.0	0.3375	0.7566
0.95	210.0	2.0747	1.461
0.95	246.0	0.1769	1.0769
0.95	258.0	0.5275	1.0066
0.95	270.0	1.5895	1.0781
0.65	102.0	-0.1042	0.9822
0.65	126.0	0.8843	0.9864
0.75	102.0	0.4428	1.0166
0.75	114.0	0.1786	1.0754
0.75	222.0	0.6866	0.9378
0.75	234.0	-0.5321	0.8204
0.85	234.0	-0.9057	0.854
0.85	246.0	-0.7988	0.7125
0.85	258.0	0.3906	0.8435
0.95	234.0	2.3047	2.7787
0.95	258.0	-1.134	2.3165

CLAS Physics Database