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	syst. uncert.
0.45	282.0	-0.0433	0.4904	0.0501
0.75	114.0	-1.451	0.605	0.0998
0.75	126.0	-0.1796	0.7697	0.0322
0.75	138.0	-1.2635	0.6458	0.0882
0.75	234.0	0.8596	0.6884	0.0639
0.75	246.0	-0.2356	0.7497	0.0337
0.75	258.0	1.1556	0.8032	0.0816
0.85	78.0	-0.3205	0.6993	0.0366
0.85	114.0	-0.1502	0.7668	0.0316
0.85	222.0	0.8395	0.875	0.0627
0.85	234.0	-0.0439	0.6967	0.0301
0.85	246.0	0.3375	0.7566	0.0373
0.95	210.0	2.0747	1.461	0.1394
0.95	246.0	0.1769	1.0769	0.0322
0.95	258.0	0.5275	1.0066	0.0458
0.95	270.0	1.5895	1.0781	0.1085
0.65	102.0	-0.1042	0.9822	0.0315
0.65	126.0	0.8843	0.9864	0.087
0.75	102.0	0.4428	1.0166	0.0507
0.75	114.0	0.1786	1.0754	0.0342
0.75	222.0	0.6866	0.9378	0.0701
0.75	234.0	-0.5321	0.8204	0.0575
0.85	234.0	-0.9057	0.854	0.0888
0.85	246.0	-0.7988	0.7125	0.0796
0.85	258.0	0.3906	0.8435	0.0469
0.95	234.0	2.3047	2.7787	0.2148
0.95	258.0	-1.134	2.3165	0.1089

CLAS Physics Database