Measurement E151M1340

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:	0.1742
Q²:	0.0707 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.7364

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	-0.2152	0.9348	0.0386
0.35	30.0	0.5261	0.8971	0.0665
0.35	42.0	-0.5902	0.8769	0.073
0.45	42.0	-0.6393	0.9786	0.0781
0.45	258.0	-0.1491	0.9141	0.0344
0.55	234.0	-0.2814	0.9557	0.0437
0.55	246.0	-1.4154	0.772	0.1624
0.55	258.0	0.9153	0.599	0.1075
0.55	270.0	-0.1675	0.6645	0.0355
0.65	138.0	0.0921	1.0118	0.0317
0.65	150.0	-0.2883	0.9188	0.0442
0.65	234.0	0.6815	0.6576	0.0825
0.65	246.0	-0.1617	0.5721	0.0351
0.65	258.0	0.9087	0.48	0.1068
0.65	270.0	0.612	0.7058	0.0753
0.75	138.0	0.2576	0.8462	0.0418
0.75	150.0	0.4874	0.6677	0.0626
0.75	162.0	0.3088	0.7138	0.046
0.75	174.0	-0.4365	0.7779	0.0577
0.75	198.0	0.7194	0.831	0.0865
0.75	234.0	-0.5778	0.5877	0.0717
0.75	246.0	0.7154	0.5422	0.0861
0.75	258.0	0.2038	0.5261	0.0378
0.75	270.0	-0.2649	0.542	0.0423
0.85	126.0	-0.67	0.9034	0.0813
0.85	138.0	-0.2107	0.7197	0.0383
0.85	150.0	-0.3308	0.7106	0.0479
0.85	162.0	0.0622	0.6879	0.0308
0.85	174.0	0.0454	0.7224	0.0304
0.85	186.0	-0.4235	0.739	0.0564
0.85	198.0	0.2263	0.8557	0.0394
0.85	234.0	-0.8512	0.6167	0.1006
0.85	246.0	-1.098	0.477	0.1274
0.85	258.0	0.0176	0.5096	0.0301
0.85	270.0	0.2476	0.4611	0.041
0.85	282.0	0.6088	0.6393	0.0749
0.95	102.0	-0.4562	0.7521	0.0596
0.95	114.0	0.1015	0.7775	0.0321
0.95	138.0	0.8933	0.703	0.1051
0.95	174.0	0.9706	0.7182	0.1135
0.95	234.0	0.084	0.6316	0.0315
0.95	246.0	0.8181	0.6698	0.097
0.95	258.0	-0.2723	0.5304	0.0429
0.95	270.0	0.9496	0.5241	0.1112

CLAS Physics Database