Measurement E151M2105

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:	0.0441
Q²:	0.0415 GeV²
W:	1595.0 GeV
E_beam:	2.2596 GeV
ε:	0.8752

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	126.0	1.2154	0.9255
0.45	270.0	1.7463	0.735
0.55	126.0	1.2792	0.8634
0.55	270.0	-0.1302	0.8103
0.55	282.0	-1.1358	0.7854
0.65	126.0	0.3021	0.9115
0.65	222.0	-0.2155	0.9624
0.75	66.0	-0.5266	0.8512
0.75	126.0	-0.7702	0.914
0.75	138.0	-0.6052	1.0507
0.75	198.0	-1.6002	0.9941
0.75	210.0	0.468	0.8788
0.75	222.0	-0.3634	0.9345
0.75	234.0	1.2735	0.8638
0.75	270.0	-0.1691	0.9041
0.75	282.0	-0.5385	0.7048
0.85	114.0	-0.9872	0.8984
0.85	210.0	0.5381	0.9651
0.45	282.0	1.0946	0.6799
0.55	114.0	-0.573	0.9426
0.55	126.0	0.61	0.7935
0.55	270.0	0.0946	0.7759
0.65	114.0	0.463	0.9273
0.65	138.0	-0.8792	0.9467
0.65	210.0	-0.577	0.876
0.65	222.0	-1.1277	0.8222
0.75	126.0	-0.1259	1.0501
0.75	138.0	-1.0828	1.0256
0.75	210.0	-0.3111	0.8784
0.75	234.0	-1.0369	0.7801
0.75	282.0	1.4605	0.6905
0.85	102.0	1.7712	1.1079
0.85	114.0	-0.1767	0.9992
0.85	126.0	-0.4762	1.0312
0.85	210.0	1.1482	0.9359
0.85	222.0	-1.0226	0.9659
0.85	234.0	-1.7383	0.9007

CLAS Physics Database