Measurement E151M1829

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:	0.0458
Q²:	0.0291 GeV²
W:	1505.0 GeV
E_beam:	1.9889 GeV
ε:	0.8914

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	78.0	-0.9715	0.7609	0.0661
0.35	90.0	1.1521	0.7305	0.076
0.35	270.0	0.3474	0.7634	0.0366
0.35	282.0	-0.5464	0.7013	0.0447
0.35	294.0	-0.5124	0.6497	0.0432
0.45	66.0	1.5147	0.7038	0.0966
0.45	78.0	-0.5162	0.5676	0.0433
0.45	90.0	0.6309	0.5921	0.0486
0.45	270.0	-0.3532	0.7276	0.0369
0.45	282.0	0.6104	0.674	0.0476
0.45	294.0	0.5798	0.7726	0.0462
0.55	78.0	-0.4022	0.6698	0.0387
0.55	90.0	-0.3972	0.6926	0.0385
0.55	138.0	-0.7051	0.753	0.0522
0.55	222.0	0.0777	0.7251	0.0304
0.55	234.0	0.779	0.768	0.0559
0.55	270.0	0.4818	0.6491	0.0419
0.55	282.0	-0.132	0.5421	0.031
0.55	294.0	-0.7117	0.6844	0.0525
0.65	78.0	-1.3971	0.7062	0.0898
0.65	114.0	0.1226	0.6914	0.0309
0.65	126.0	-0.2291	0.6474	0.0331
0.65	138.0	-0.5417	0.6603	0.0445
0.65	150.0	0.0806	0.7692	0.0304
0.65	198.0	-0.3412	0.7823	0.0364
0.65	222.0	-0.1456	0.4932	0.0313
0.65	234.0	-0.5491	0.603	0.0448
0.65	270.0	-0.7097	0.7288	0.0524
0.75	78.0	-0.7727	0.7687	0.0556
0.75	126.0	-0.4624	0.6029	0.0411
0.75	138.0	-0.9021	0.6231	0.0624
0.75	210.0	-0.3836	0.7038	0.038
0.75	222.0	0.309	0.5221	0.0354
0.75	234.0	-0.7394	0.6323	0.0539
0.75	246.0	0.0625	0.687	0.0302
0.75	282.0	0.7309	0.6254	0.0535
0.85	114.0	-0.7284	0.8253	0.0534
0.85	210.0	-0.8955	0.6849	0.062
0.85	222.0	-1.2089	0.6338	0.0792
0.85	234.0	-0.1618	0.5958	0.0316

CLAS Physics Database