Measurement E151M1584

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:	0.1952
Q²:	0.1435 GeV²
W:	1445.0 GeV
E_beam:	1.3383 GeV
ε:	0.7052

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	138.0	0.3138	0.9636
0.65	234.0	0.6132	0.9795
0.65	246.0	0.1152	0.8665
0.75	138.0	0.2306	0.9174
0.75	222.0	-1.0581	0.9168
0.75	246.0	-0.8189	0.7734
0.75	258.0	0.5491	0.8813
0.85	258.0	2.0486	0.8475
0.85	270.0	1.1437	0.8871
0.95	90.0	0.2984	0.7697
0.55	246.0	0.1934	1.2479
0.65	246.0	1.4706	0.8119
0.65	258.0	-0.3954	0.9066
0.75	138.0	1.832	0.9261
0.75	222.0	0.8528	1.0276
0.75	234.0	0.3836	1.2176
0.75	246.0	1.4706	1.1515
0.85	246.0	0.8137	1.1518
0.85	258.0	0.0759	1.0145
0.85	270.0	-0.5373	0.9624

CLAS Physics Database