Measurement E151M2131

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:	0.0402
Q²:	0.0496 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.8377

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	258.0	-0.107	1.0651
0.45	270.0	-1.5602	0.8001
0.55	126.0	-1.932	1.1489
0.55	258.0	-2.2417	0.8445
0.55	270.0	1.7808	0.8771
0.65	270.0	1.58	0.9635
0.65	294.0	0.0455	0.9132
0.75	114.0	0.3424	1.316
0.75	210.0	-0.6582	1.0815
0.75	222.0	-0.2046	1.1215
0.75	270.0	-0.1273	0.7876
0.75	282.0	-0.1658	0.778
0.75	294.0	-0.8004	0.9789
0.85	102.0	0.3285	1.4459
0.85	114.0	-0.9503	1.3033
0.85	126.0	-1.7684	1.3581
0.85	198.0	-3.2387	1.1152
0.85	234.0	-0.5177	1.1567
0.85	270.0	1.1859	1.2351
0.35	282.0	-0.1605	0.6229
0.45	258.0	-0.7319	0.7201
0.45	282.0	0.6917	0.7349
0.55	114.0	0.3521	0.8157
0.55	126.0	-0.3449	0.7631
0.55	138.0	-0.3395	0.8517
0.55	258.0	-0.6421	0.7781
0.55	270.0	0.3448	0.6657
0.55	282.0	-0.8018	0.7505
0.65	114.0	-0.0568	0.7588
0.65	126.0	-0.4007	0.76
0.65	198.0	0.2384	0.8851
0.65	210.0	-1.3469	0.7667
0.65	294.0	-0.7147	0.6953
0.75	54.0	-1.1275	0.6589
0.75	138.0	-1.0395	0.7982
0.75	198.0	-0.6992	0.7322
0.75	222.0	0.4299	0.7644
0.75	234.0	-0.6418	0.7815
0.75	270.0	-0.5811	0.6269
0.75	282.0	0.8009	0.5549
0.85	102.0	-0.1249	0.7797
0.85	114.0	-1.7033	0.7329
0.85	126.0	-0.9013	0.8697
0.85	222.0	-1.0937	0.8463

CLAS Physics Database