Measurement E151M1234

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:	0.4697
Q²:	0.0593 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.8959

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	-0.3877	0.494	0.053
0.55	270.0	-0.0212	0.375	0.0301
0.55	282.0	0.0664	0.4056	0.0309
0.65	258.0	0.446	0.4712	0.0586
0.65	270.0	-0.7246	0.3372	0.0871
0.65	282.0	0.4642	0.4156	0.0603
0.75	258.0	-0.2166	0.4674	0.0387
0.75	270.0	-0.5327	0.3903	0.0672
0.75	282.0	-0.391	0.5012	0.0533
0.85	150.0	-0.1888	0.4209	0.0368
0.85	162.0	0.7308	0.4171	0.0877
0.85	174.0	-0.232	0.4154	0.0398
0.85	186.0	0.5865	0.3374	0.0726
0.85	198.0	0.3889	0.4462	0.0531
0.85	210.0	-0.5321	0.3831	0.0671
0.85	222.0	0.9382	0.3961	0.11
0.85	246.0	-0.469	0.4911	0.0608
0.85	258.0	-0.2255	0.4584	0.0393
0.95	150.0	0.5285	0.433	0.0667
0.95	162.0	0.7184	0.3307	0.0864
0.95	174.0	0.6679	0.3251	0.0811
0.95	186.0	0.1836	0.3696	0.0365
0.95	198.0	0.8119	0.315	0.0964
0.95	210.0	-0.1642	0.4391	0.0353
0.95	222.0	0.6568	0.3613	0.0799

CLAS Physics Database