Measurement E151M149

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:	0.0236
Q²:	0.0121 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7141

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	-0.4735	0.8241
0.35	30.0	3.0204	3.0204
0.35	42.0	-0.478	0.5876
0.35	54.0	0.558	0.6442
0.45	30.0	1.1374	0.8732
0.45	42.0	-0.0802	0.5335
0.45	54.0	-0.0788	0.542
0.45	66.0	0.5861	0.8055
0.45	222.0	-0.3521	0.7165
0.45	234.0	0.6986	0.6661
0.45	246.0	1.2254	0.8123
0.55	18.0	0.5314	0.8101
0.55	30.0	1.0382	0.7353
0.55	42.0	0.2253	0.4786
0.55	54.0	-0.6883	0.5055
0.55	66.0	-0.0821	0.842
0.55	138.0	-1.1077	0.7099
0.55	150.0	-1.3064	0.6373
0.55	162.0	-0.7979	0.6667
0.55	210.0	0.8829	0.889
0.55	222.0	-0.5251	0.5526
0.55	234.0	0.619	0.7003
0.55	246.0	1.2554	0.6204
0.55	258.0	0.9729	0.7306
0.65	30.0	-0.647	0.7912
0.65	42.0	3.1686	3.1686
0.65	54.0	-0.994	0.6803
0.65	138.0	0.5266	0.9125
0.65	150.0	0.0043	0.6636
0.65	162.0	-1.0923	0.5863
0.65	210.0	0.9628	0.7515
0.65	222.0	0.0886	0.5165
0.65	234.0	-0.0888	0.4961
0.65	246.0	-1.1628	0.4049
0.65	258.0	0.4777	0.7738
0.75	42.0	-0.0787	0.849
0.75	138.0	-0.3856	0.7054
0.75	150.0	-0.8651	0.7347
0.75	162.0	0.4047	0.8741
0.75	174.0	0.5666	0.8555
0.75	210.0	0.2833	0.7126
0.75	222.0	-0.1072	0.537
0.75	234.0	0.6233	0.5482
0.75	246.0	-0.0149	0.4738
0.75	258.0	1.722	0.6811
0.85	150.0	-0.76	0.7125
0.85	210.0	-0.0986	0.7229
0.85	222.0	0.7748	0.5784
0.85	234.0	0.2574	0.4769
0.85	246.0	0.306	0.4342
0.85	258.0	-0.4601	0.587

CLAS Physics Database