Measurement E151M1565

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:	0.2337
Q²:	0.1435 GeV²
W:	1415.0 GeV
E_beam:	1.3383 GeV
ε:	0.7404

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	234.0	2.1726	0.8645
0.55	246.0	0.6961	1.105
0.55	258.0	1.0159	0.6348
0.65	126.0	-0.6272	1.2386
0.65	138.0	-0.1804	1.3495
0.65	234.0	0.9336	0.9596
0.65	246.0	-0.8046	0.9013
0.65	258.0	-0.35	0.583
0.75	114.0	1.7443	0.6375
0.75	126.0	1.2075	0.9111
0.75	222.0	0.0246	0.6821
0.75	234.0	0.841	0.66
0.75	246.0	-0.1899	0.9357
0.75	270.0	-0.5781	0.8142
0.85	114.0	0.947	0.9297
0.85	138.0	0.2609	0.8739
0.85	150.0	0.477	0.7503
0.85	234.0	-0.3738	0.7078
0.85	246.0	0.8795	0.7841
0.85	258.0	-0.8802	0.7928
0.85	270.0	1.1494	0.6625
0.85	282.0	-0.0516	0.7142
0.95	78.0	1.7821	0.7013
0.95	90.0	0.1012	0.7851
0.95	246.0	1.3119	0.624
0.95	258.0	0.5388	0.7313
0.95	270.0	-0.0401	0.7389
0.95	282.0	-0.1341	0.6675
0.65	270.0	0.5577	1.1285
0.75	114.0	0.891	1.3391
0.75	126.0	-0.2776	1.0393
0.75	138.0	1.6407	0.8614
0.75	150.0	0.9576	1.2802
0.75	222.0	-1.0645	0.9772
0.75	246.0	0.0661	1.0224
0.75	258.0	-1.226	0.8861
0.75	270.0	0.5942	1.0588
0.85	114.0	0.8116	1.0882
0.85	126.0	0.7746	0.9263
0.85	246.0	-0.0999	0.8594
0.85	258.0	-0.7272	0.831
0.85	270.0	0.5824	0.9778
0.85	282.0	-1.6092	0.6554
0.95	90.0	2.2243	2.2243
0.95	246.0	1.0343	0.8004
0.95	258.0	0.0002	0.9663
0.95	270.0	0.5379	0.8407
0.95	282.0	-0.8055	0.874

CLAS Physics Database