Measurement E151M2396

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:	0.0489
Q²:	0.101 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8444

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	114.0	0.1212	1.035	0.0313
0.65	126.0	0.6818	1.0661	0.0578
0.65	198.0	-0.9902	0.9473	0.0778
0.65	282.0	-0.4526	0.8758	0.0445
0.75	102.0	-1.1171	0.8149	0.0864
0.75	114.0	-0.0744	1.0854	0.0305
0.75	126.0	-1.1633	1.0364	0.0895
0.75	186.0	-3.2266	3.2266	0.2359
0.75	198.0	0.535	1.0601	0.049
0.75	210.0	-1.6807	0.8878	0.1255
0.75	222.0	-0.4841	0.9797	0.0462
0.75	234.0	-1.7669	0.9503	0.1316
0.75	270.0	1.2773	0.7464	0.0974
0.75	282.0	0.4526	0.8154	0.0445
0.85	90.0	-0.9849	0.9653	0.0775
0.85	102.0	-0.8829	0.7901	0.0707
0.85	114.0	-0.7563	0.8235	0.0625
0.85	126.0	0.4268	0.8877	0.0431
0.85	174.0	-0.6285	0.9519	0.0546
0.85	186.0	-1.2448	0.8991	0.0951
0.85	198.0	-0.4009	0.7086	0.0418
0.85	210.0	-1.3138	0.736	0.0999
0.85	222.0	0.2405	0.8355	0.0347
0.85	234.0	-1.1601	0.979	0.0893
0.85	282.0	-0.8308	0.8977	0.0673
0.95	114.0	0.4224	1.0327	0.0429
0.95	198.0	-0.5825	0.9773	0.0518
0.95	210.0	1.4527	0.8253	0.1095

CLAS Physics Database