Measurement E151M699

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:	0.0326
Q²:	0.0496 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7523

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	78.0	-0.2527	0.6095
0.35	270.0	-0.0817	0.4805
0.45	138.0	-0.3022	0.5985
0.45	222.0	0.1352	0.654
0.45	270.0	-0.1673	0.5349
0.45	282.0	0.0043	0.591
0.55	114.0	-0.048	0.6341
0.55	126.0	-0.3623	0.5989
0.55	138.0	-0.32	0.6436
0.55	210.0	1.4304	0.627
0.55	222.0	-0.3228	0.5365
0.55	246.0	0.4702	0.6614
0.55	258.0	0.0046	0.5523
0.55	270.0	1.6736	0.5053
0.65	126.0	-0.3056	0.5354
0.65	138.0	-0.6581	0.4623
0.65	210.0	-0.5846	0.5435
0.65	222.0	0.9784	0.6508
0.65	234.0	0.3332	0.6222
0.65	294.0	0.4899	0.6024
0.75	54.0	0.8666	0.683
0.75	66.0	0.7933	0.5818
0.75	114.0	-0.4481	0.5099
0.75	198.0	-0.2219	0.5715
0.75	210.0	-0.3875	0.4924
0.75	222.0	0.4137	0.5034
0.75	234.0	1.4975	0.5773
0.75	270.0	1.4435	0.4985
0.75	282.0	0.5163	0.4529
0.85	114.0	0.6626	0.5488
0.85	126.0	0.4547	0.5358
0.85	138.0	-1.4849	0.3929
0.85	198.0	1.0612	0.558
0.85	210.0	0.7064	0.5279
0.85	222.0	-0.3117	0.42
0.85	234.0	1.3193	0.6115
0.85	270.0	-0.5622	0.5101

CLAS Physics Database