Measurement E151M1045

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:	0.5147
Q²:	0.5925 GeV²
W:	1475.0 GeV
E_beam:	2.999 GeV
ε:	0.879

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	294.0	1.4814	0.8889
0.45	102.0	0.479	0.9091
0.55	78.0	0.7629	0.7972
0.55	90.0	0.5911	0.8205
0.55	102.0	-0.6206	0.6714
0.65	78.0	0.1805	0.775
0.65	90.0	0.9062	0.8584
0.65	102.0	-0.4051	0.7462
0.65	258.0	-0.698	0.6938
0.75	54.0	0.3284	0.7988
0.75	90.0	-0.8705	0.602
0.75	102.0	0.6337	0.8915
0.75	114.0	0.0768	0.809
0.75	234.0	0.9393	0.9212
0.75	246.0	0.2325	0.7642
0.75	258.0	0.3618	0.752
0.75	282.0	1.9543	0.7807
0.85	54.0	-0.1384	0.7181
0.85	114.0	0.5531	0.8803
0.85	210.0	1.548	0.9408
0.85	222.0	-1.5928	0.4914
0.85	246.0	-0.0949	0.7431
0.85	270.0	-0.139	0.6244
0.85	282.0	1.2828	0.8143
0.85	294.0	0.042	0.6429
0.85	306.0	-1.1705	0.4532
0.85	318.0	0.5002	0.6563
0.85	330.0	-1.4464	0.4751
0.95	294.0	-0.4544	0.6253

CLAS Physics Database