Measurement E151M2253

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:	0.5084
Q²:	0.4155 GeV²
W:	1445.0 GeV
E_beam:	2.999 GeV
ε:	0.9154

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	54.0	-0.1627	0.8642
0.15	66.0	0.229	0.9585
0.15	294.0	0.4404	0.8719
0.25	66.0	-0.112	0.968
0.25	294.0	0.9273	0.7258
0.35	294.0	0.66	0.8669
0.45	90.0	-0.3289	0.9151
0.55	78.0	-0.008	0.6865
0.55	90.0	1.5041	0.622
0.55	102.0	0.6997	0.6936
0.55	114.0	0.1245	0.8762
0.65	78.0	1.2568	0.5827
0.65	90.0	-0.3159	0.684
0.65	102.0	0.1934	0.7235
0.65	114.0	1.4776	0.746
0.65	234.0	2.743	2.743
0.65	246.0	-0.2188	0.956
0.65	258.0	-0.2581	0.7561
0.65	270.0	-0.632	0.7421
0.65	282.0	1.5696	0.7868
0.75	54.0	-0.0781	0.6539
0.75	78.0	0.091	0.6109
0.75	90.0	1.0638	0.6096
0.75	102.0	0.7557	0.6456
0.75	114.0	0.3663	0.7282
0.75	126.0	0.2237	0.8715
0.75	234.0	0.9739	0.7538
0.75	246.0	-0.0685	0.7523
0.75	258.0	-0.445	0.6081
0.75	270.0	-0.5432	0.5813
0.75	282.0	0.4439	0.6989
0.75	294.0	-0.1835	0.8262
0.85	54.0	0.2737	0.8157
0.85	78.0	1.0914	0.8949
0.85	90.0	0.4937	0.6362
0.85	102.0	0.0301	0.654
0.85	114.0	0.9751	0.8447
0.85	198.0	-0.5972	0.9787
0.85	210.0	-0.2627	0.8563
0.85	222.0	0.9114	0.7965
0.85	234.0	0.4348	0.7177
0.85	246.0	0.1969	0.6874
0.85	258.0	0.7967	0.7139
0.85	270.0	1.2975	0.5204
0.85	282.0	-0.0874	0.5264
0.85	294.0	-0.5643	0.5692
0.85	306.0	0.1799	0.5925
0.85	318.0	0.386	0.6088
0.95	234.0	-0.644	0.7516
0.95	258.0	2.5866	2.5866
0.95	282.0	0.0624	0.6631
0.95	294.0	-0.5889	0.5856
0.95	306.0	-0.0598	0.6234
0.95	318.0	0.6046	0.5604
0.95	330.0	0.5376	0.6162
0.95	342.0	-0.6418	0.7405

CLAS Physics Database