Measurement E151M147

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:	0.0168
Q²:	0.0084 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7185

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	30.0	-0.3575	0.7924	0.0505
0.35	42.0	-0.8718	0.6992	0.1036
0.35	54.0	1.5339	0.8503	0.1771
0.45	30.0	0.6311	0.8884	0.0778
0.45	42.0	0.6299	0.6169	0.0777
0.45	54.0	0.9999	0.7119	0.1176
0.45	222.0	0.289	0.7745	0.0445
0.45	234.0	-0.7494	0.6772	0.0904
0.55	18.0	-0.7932	0.682	0.0951
0.55	30.0	0.2622	0.724	0.0423
0.55	42.0	0.2893	0.5538	0.0445
0.55	54.0	0.5196	0.5992	0.0663
0.55	150.0	0.6148	0.8767	0.0761
0.55	162.0	-0.937	0.6722	0.1107
0.55	174.0	2.8491	2.8491	0.3255
0.55	222.0	1.176	0.7634	0.1371
0.55	234.0	2.3506	0.6119	0.2691
0.55	246.0	0.3719	0.6932	0.0519
0.65	42.0	-0.9085	0.6421	0.1076
0.65	54.0	0.8757	0.8376	0.1041
0.65	150.0	-0.0816	0.7182	0.0314
0.65	162.0	-0.1351	0.701	0.0337
0.65	210.0	0.7029	0.7817	0.0854
0.65	222.0	1.7778	0.6008	0.2045
0.65	234.0	-0.4477	0.516	0.0591
0.65	246.0	-0.7864	0.5272	0.0944
0.75	222.0	0.8299	0.6312	0.0991
0.75	234.0	-0.0941	0.6794	0.0319
0.75	246.0	-1.3628	0.5201	0.1579
0.75	258.0	-0.3152	0.7653	0.0468
0.85	210.0	2.1428	0.7748	0.2456
0.85	222.0	1.3213	0.6723	0.1533
0.85	234.0	0.4763	0.5732	0.0619
0.85	246.0	0.6358	0.6647	0.0783

CLAS Physics Database