Measurement E151M1395

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_LL
ε_L:	0.0428
Q²:	0.0291 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6382

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	0.8198	0.7231	0.0972
0.25	54.0	-0.3307	0.7913	0.0479
0.35	30.0	-1.9769	0.817	0.225
0.35	42.0	-0.6652	0.7422	0.0808
0.35	54.0	-0.7505	0.5737	0.0898
0.45	30.0	-0.4653	0.8672	0.0605
0.45	42.0	0.0232	0.6903	0.0301
0.45	54.0	-0.214	0.5975	0.0385
0.45	66.0	-0.411	0.9211	0.0552
0.45	246.0	-0.3025	0.6883	0.0454
0.45	258.0	-1.0564	0.9365	0.1229
0.55	30.0	-1.8754	0.7926	0.2136
0.55	42.0	-0.6389	0.6863	0.0781
0.55	54.0	-0.2554	0.6881	0.0416
0.55	150.0	0.4083	0.8004	0.055
0.55	162.0	0.5407	0.9208	0.068
0.55	210.0	-0.0278	0.8733	0.0302
0.55	222.0	1.2355	0.6533	0.1425
0.55	234.0	0.3058	0.5971	0.0457
0.55	246.0	-0.8506	0.5659	0.1005
0.55	258.0	0.0528	0.7138	0.0306
0.65	150.0	0.4256	0.7811	0.0566
0.65	162.0	-0.7937	0.7319	0.0944
0.65	174.0	-0.5865	0.7368	0.0726
0.65	210.0	-0.66	0.8029	0.0803
0.65	222.0	0.4096	0.682	0.0551
0.65	234.0	-0.9458	0.509	0.1108
0.65	246.0	-0.9505	0.4601	0.1113
0.65	258.0	-1.5205	0.5567	0.1741
0.75	42.0	-1.0236	0.8412	0.1193
0.75	138.0	-1.0514	0.8342	0.1223
0.75	150.0	0.6326	0.8259	0.0774
0.75	162.0	0.1376	0.8241	0.0338
0.75	174.0	-1.5941	0.8083	0.1823
0.75	210.0	0.6772	0.8449	0.0821
0.75	222.0	-1.2249	0.6119	0.1414
0.75	234.0	-0.9106	0.6417	0.107
0.75	246.0	-0.3164	0.4331	0.0466
0.75	258.0	-0.0458	0.5037	0.0304
0.85	222.0	0.4157	0.7436	0.0557
0.85	234.0	-0.5429	0.5223	0.0682
0.85	246.0	0.0368	0.5179	0.0303
0.85	258.0	-1.5217	0.5389	0.1742

CLAS Physics Database