Measurement E151M129

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:	0.0293
Q²:	0.0121 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7612

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	2.0586	0.814
0.35	42.0	0.7761	0.6602
0.35	54.0	-0.3456	0.6244
0.45	30.0	-0.0965	0.8333
0.45	42.0	0.4558	0.5374
0.45	54.0	0.423	0.5763
0.45	66.0	1.1784	0.9399
0.45	222.0	0.6826	0.9158
0.45	234.0	1.5629	0.8446
0.55	18.0	1.6541	0.9492
0.55	30.0	-1.1966	0.57
0.55	42.0	0.1506	0.5325
0.55	54.0	0.3601	0.6477
0.55	138.0	0.0994	0.8215
0.55	150.0	-1.573	0.6089
0.55	162.0	-0.336	0.7994
0.55	222.0	0.3803	0.6302
0.55	234.0	-1.1262	0.4467
0.55	246.0	-0.4075	0.5305
0.55	258.0	-0.581	0.7378
0.65	42.0	-0.7071	0.7175
0.65	54.0	-0.2612	0.7191
0.65	138.0	1.0275	0.8208
0.65	150.0	-0.2246	0.6367
0.65	162.0	0.1604	0.6881
0.65	174.0	0.3414	0.7381
0.65	210.0	1.0945	0.7433
0.65	222.0	-0.1479	0.4932
0.65	234.0	0.1401	0.5011
0.65	246.0	-0.4464	0.4177
0.65	258.0	1.3864	0.5916
0.75	138.0	-0.5103	0.7001
0.75	150.0	-1.081	0.6792
0.75	162.0	0.658	0.7739
0.75	174.0	-0.0734	0.7046
0.75	210.0	1.3988	0.8561
0.75	222.0	0.1107	0.5807
0.75	234.0	0.15	0.4963
0.75	246.0	0.3679	0.5113
0.75	258.0	-0.0867	0.5803
0.85	210.0	-0.6652	0.6695
0.85	222.0	0.3764	0.5086
0.85	234.0	1.4124	0.4902
0.85	246.0	-0.457	0.4358
0.85	258.0	0.0057	0.5118

CLAS Physics Database