Measurement E151M178

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:	0.089
Q²:	0.0707 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.5838

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.15	42.0	0.0961	0.8507
0.25	54.0	-0.0301	0.8536
0.35	42.0	-1.2524	0.6214
0.45	30.0	1.3606	0.8077
0.45	42.0	-0.7524	0.692
0.45	54.0	0.6136	0.8174
0.45	234.0	-1.5927	0.5811
0.45	258.0	-0.1451	0.7849
0.55	222.0	-0.5067	0.7206
0.55	234.0	0.2256	0.5859
0.55	246.0	0.3226	0.6243
0.55	258.0	-0.3271	0.688
0.55	270.0	0.4275	0.774
0.65	150.0	0.703	0.8005
0.65	162.0	-1.968	0.557
0.65	222.0	0.9836	0.7442
0.65	234.0	0.4399	0.6799
0.65	246.0	0.9362	0.6566
0.65	258.0	0.7327	0.641
0.65	270.0	0.247	0.7298
0.75	138.0	-0.8278	0.6463
0.75	174.0	-0.4852	0.7216
0.75	222.0	0.2216	0.726
0.75	234.0	-0.0949	0.6367
0.75	246.0	0.6116	0.5225
0.75	258.0	0.5987	0.5917
0.75	270.0	0.3663	0.6515
0.85	234.0	-0.2105	0.6424
0.85	246.0	0.7785	0.5642
0.85	258.0	1.0199	0.4963
0.85	270.0	1.1447	0.6015
0.95	138.0	-0.4163	0.5987

CLAS Physics Database