Measurement E151M135

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_UL
ε_L:	0.0782
Q²:	0.0348 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7343

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	-0.8528	0.5785
0.25	54.0	0.9812	0.7383
0.35	30.0	0.5827	0.9197
0.35	42.0	0.8445	0.6135
0.35	54.0	0.1209	0.7156
0.45	18.0	0.5577	0.8884
0.45	30.0	-0.5066	0.613
0.45	42.0	1.1823	0.6713
0.45	54.0	0.7611	0.6384
0.45	258.0	-0.1045	0.8398
0.55	42.0	0.4684	0.6849
0.55	54.0	1.0794	0.8088
0.55	150.0	0.4299	0.8931
0.55	222.0	0.9285	0.8851
0.55	234.0	-0.1043	0.6488
0.55	246.0	0.5863	0.5803
0.55	258.0	0.203	0.5342
0.55	270.0	0.2891	0.8323
0.65	138.0	0.378	0.7907
0.65	150.0	0.4737	0.8228
0.65	162.0	-1.4682	0.6161
0.65	174.0	-0.7943	0.7813
0.65	186.0	-0.0049	0.8325
0.65	222.0	0.6781	0.6227
0.65	234.0	0.1667	0.4644
0.65	246.0	0.2317	0.4749
0.65	258.0	0.5457	0.5482
0.65	270.0	-1.059	0.5661
0.75	138.0	0.2505	0.6664
0.75	150.0	-0.0041	0.6732
0.75	162.0	-0.6332	0.5369
0.75	174.0	-1.0944	0.6106
0.75	222.0	0.1051	0.6773
0.75	234.0	0.5128	0.4753
0.75	246.0	0.9507	0.4977
0.75	258.0	-0.4121	0.4116
0.75	270.0	-0.4758	0.5617
0.85	150.0	-0.3647	0.8115
0.85	162.0	1.2064	0.9019
0.85	174.0	0.4693	0.7497
0.85	210.0	1.4406	0.8069
0.85	222.0	0.7778	0.6805
0.85	234.0	0.5847	0.5074
0.85	246.0	-0.2649	0.4475
0.85	258.0	0.6492	0.4854
0.85	270.0	-0.7845	0.4807
0.95	126.0	-0.4059	0.6352
0.95	234.0	0.6161	0.6852
0.95	246.0	-0.094	0.5287
0.95	258.0	-1.1632	0.4683

CLAS Physics Database