Measurement E151M2048

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:	0.362
Q²:	0.2445 GeV²
W:	1445.0 GeV
E_beam:	2.2596 GeV
ε:	0.8866

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	102.0	1.3749	1.1745
0.75	90.0	-1.6343	1.2696
0.75	246.0	-0.5668	1.0284
0.75	258.0	0.2962	1.1112
0.85	114.0	0.6525	1.4103
0.85	234.0	-0.0928	1.3204
0.85	258.0	-1.7561	1.1631
0.85	270.0	-1.6155	1.051
0.95	246.0	4.4997	2.8699
0.95	282.0	-1.6458	3.2435
0.95	294.0	0.4531	3.3369
0.35	294.0	0.0995	0.6972
0.65	102.0	0.5656	0.6725
0.65	114.0	2.0396	0.617
0.65	258.0	1.4034	0.7673
0.75	90.0	-0.7434	0.6832
0.75	102.0	0.6698	0.6852
0.75	114.0	0.3186	0.8039
0.75	126.0	0.431	0.801
0.75	234.0	1.0915	0.8863
0.75	246.0	0.2306	0.8281
0.85	102.0	0.72	0.8211
0.85	114.0	-0.2392	0.7935
0.85	246.0	1.5107	0.7364
0.85	258.0	-0.9198	0.8237
0.85	270.0	0.5647	0.7592
0.95	282.0	-0.3353	1.1372
0.95	294.0	0.6844	1.0958

CLAS Physics Database