Measurement E151M2080

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:	0.0574
Q²:	0.0415 GeV²
W:	1535.0 GeV
E_beam:	2.2596 GeV
ε:	0.9039

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	0.7588	0.5555
0.55	78.0	-1.0081	0.9718
0.55	114.0	-0.509	1.0335
0.55	126.0	1.5678	0.9758
0.55	282.0	-1.1228	0.8428
0.65	126.0	0.1	1.1974
0.65	138.0	0.1786	1.0092
0.65	222.0	-0.6121	0.9245
0.75	114.0	-0.2407	1.2772
0.75	138.0	1.2562	1.0829
0.75	210.0	0.1453	1.1406
0.75	234.0	-0.2972	1.0814
0.75	282.0	-0.4948	0.9215
0.85	102.0	-2.2746	1.3083
0.85	114.0	-0.6091	1.2537
0.85	222.0	-0.9279	1.109
0.85	234.0	0.6959	1.0102
0.45	66.0	-0.521	0.7611
0.45	270.0	-0.7737	0.8464
0.45	282.0	-0.0413	0.8289
0.55	114.0	-1.175	0.6873
0.55	138.0	-1.8058	0.7755
0.55	282.0	-1.1615	0.6996
0.65	126.0	0.0839	0.9185
0.65	150.0	0.8394	0.8379
0.65	210.0	-1.1838	0.9057
0.65	222.0	-0.3277	0.9716
0.65	270.0	0.0365	0.8487
0.75	126.0	0.6707	0.9124
0.75	138.0	-1.0429	0.8243
0.75	210.0	-0.5811	1.0529
0.75	222.0	-0.82	0.9192
0.75	234.0	-0.3624	0.8981
0.75	282.0	-0.3077	0.8783
0.85	102.0	0.1119	0.9486
0.85	114.0	-0.3874	0.8054
0.85	210.0	1.3822	0.9215
0.85	222.0	-0.0537	0.9372
0.85	234.0	1.8886	0.9797

CLAS Physics Database