Measurement E151M1154

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:	0.1251
Q²:	0.2445 GeV²
W:	1745.0 GeV
E_beam:	2.999 GeV
ε:	0.8431

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	114.0	0.5812	0.961	0.052
0.65	126.0	-0.6685	0.8587	0.0573
0.75	90.0	-0.4486	0.829	0.0444
0.75	186.0	0.1301	0.8712	0.0315
0.75	198.0	-0.9611	0.7171	0.0764
0.75	234.0	-0.0147	0.792	0.03
0.75	294.0	-0.9369	0.6802	0.0748
0.85	78.0	-0.0097	0.7425	0.03
0.85	90.0	-0.8737	0.5524	0.0706
0.85	102.0	-0.1399	0.7599	0.0317
0.85	114.0	0.3125	0.8942	0.0377
0.85	186.0	0.6129	1.014	0.0539
0.85	198.0	-0.2822	0.7003	0.0364
0.85	210.0	-0.4155	0.6667	0.0427
0.85	222.0	-0.0362	0.6657	0.0301
0.85	234.0	1.0255	0.8771	0.0807
0.85	246.0	-0.0131	0.8471	0.03
0.95	174.0	-0.7564	0.6623	0.0629
0.95	198.0	0.1435	0.8451	0.0318
0.95	210.0	-0.9481	0.7095	0.0755
0.95	222.0	0.4888	0.7707	0.0467
0.95	234.0	-0.2451	0.5644	0.0349
0.95	246.0	1.6076	0.8573	0.1213
0.95	270.0	-0.5738	0.7232	0.0516

CLAS Physics Database