Measurement E151M1360

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:	0.1223
Q²:	0.0593 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7053

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	-0.1153	0.898
0.25	42.0	0.4997	0.8906
0.35	30.0	0.0477	0.9573
0.35	42.0	-1.0483	0.714
0.35	54.0	0.6945	1.0278
0.45	30.0	-2.5024	0.858
0.45	42.0	0.6119	0.8152
0.45	246.0	-0.369	0.9357
0.45	258.0	1.9745	0.7621
0.55	150.0	-0.1566	0.9313
0.55	234.0	0.8106	0.8026
0.55	246.0	-0.0137	0.5637
0.55	258.0	-0.1256	0.6636
0.55	270.0	-0.9162	0.8845
0.65	138.0	1.0501	0.9091
0.65	150.0	0.7745	0.8435
0.65	162.0	0.6521	0.829
0.65	222.0	0.4167	0.7031
0.65	234.0	0.8991	0.6908
0.65	246.0	-0.9151	0.5934
0.65	258.0	0.383	0.5788
0.65	270.0	-1.1047	0.6994
0.75	138.0	0.1552	0.7005
0.75	150.0	-0.0822	0.6558
0.75	162.0	-0.4035	0.9125
0.75	174.0	-0.4956	0.8076
0.75	210.0	0.8287	0.909
0.75	222.0	-0.6467	0.8643
0.75	234.0	-0.7009	0.5617
0.75	246.0	-0.739	0.5171
0.75	258.0	-0.5438	0.5153
0.75	270.0	-1.5712	0.5472
0.75	282.0	-0.6606	0.9283
0.85	126.0	0.2753	0.9852
0.85	138.0	-2.7725	2.7725
0.85	150.0	-0.2019	0.6898
0.85	174.0	-0.5668	0.9032
0.85	234.0	0.7554	0.6363
0.85	246.0	-0.3014	0.4783
0.85	258.0	0.5422	0.5148
0.85	270.0	0.5944	0.5153
0.85	282.0	-1.0935	0.7322
0.95	246.0	0.1975	0.6517
0.95	258.0	-0.243	0.6093
0.95	270.0	-0.3932	0.6506

CLAS Physics Database