Measurement E151M1429

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:	0.5635
Q²:	0.0707 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9333

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	270.0	-0.38	0.4614	0.0433
0.55	282.0	-0.1175	0.3765	0.0323
0.65	258.0	-0.9955	0.5613	0.0652
0.65	270.0	0.0127	0.3824	0.0375
0.65	282.0	0.052	0.3748	0.0366
0.75	258.0	0.117	0.3959	0.0369
0.75	270.0	0.1282	0.3753	0.0324
0.85	126.0	-1.1055	0.6191	0.0709
0.85	138.0	-0.0356	0.7443	0.0301
0.85	150.0	-1.397	0.5257	0.0866
0.85	162.0	0.5465	0.7554	0.0437
0.85	186.0	-0.0174	0.8269	0.03
0.85	270.0	-0.561	0.6462	0.0443
0.95	126.0	0.6123	0.7899	0.0466
0.95	138.0	0.3919	0.6676	0.0377
0.95	150.0	-0.0719	0.6425	0.0303
0.95	162.0	0.987	0.5448	0.0648
0.95	174.0	0.3596	0.5658	0.0366
0.95	186.0	-0.3869	0.6576	0.0375
0.95	210.0	-0.2274	0.6457	0.0328
0.75	282.0	-1.3142	0.61	0.0843
0.85	126.0	-0.3329	0.5772	0.036
0.85	138.0	-0.0569	0.6266	0.0302
0.85	150.0	0.1102	0.5619	0.0307
0.85	162.0	0.6558	0.6142	0.0494
0.85	186.0	-0.2872	0.5517	0.0346
0.85	258.0	0.046	0.5429	0.0301
0.95	126.0	0.4943	0.4857	0.0422
0.95	138.0	-0.0462	0.4631	0.0301
0.95	162.0	-0.0473	0.4646	0.0301
0.95	174.0	0.8519	0.4579	0.0592
0.95	186.0	-0.9257	0.4812	0.0631
0.95	198.0	0.3847	0.5081	0.0378

CLAS Physics Database