Measurement E151M155

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:	0.0628
Q²:	0.0348 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.6858

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	-0.2047	0.5757
0.25	54.0	1.0069	0.8257
0.35	30.0	0.2388	0.8172
0.35	42.0	0.8644	0.649
0.35	54.0	-0.7878	0.5326
0.45	30.0	0.9084	0.865
0.45	42.0	0.3844	0.56
0.45	54.0	-0.4415	0.6765
0.45	234.0	0.0342	0.7163
0.45	246.0	0.6212	0.7484
0.45	258.0	-0.4915	0.7276
0.55	42.0	0.3094	0.6781
0.55	54.0	0.7132	0.8866
0.55	150.0	0.4667	0.8126
0.55	222.0	-0.2926	0.7028
0.55	234.0	0.6754	0.6398
0.55	246.0	-0.0548	0.5515
0.55	258.0	0.6103	0.6495
0.65	138.0	1.4074	0.9342
0.65	150.0	0.0349	0.6697
0.65	162.0	0.0048	0.7881
0.65	222.0	0.6892	0.6311
0.65	234.0	-0.2059	0.4196
0.65	246.0	0.001	0.4541
0.65	258.0	-0.0583	0.5305
0.65	270.0	-0.1813	0.7826
0.75	138.0	0.8841	0.7175
0.75	150.0	-0.3598	0.6661
0.75	162.0	-1.5282	0.6219
0.75	174.0	0.9023	0.7766
0.75	210.0	-0.1846	0.7768
0.75	222.0	0.2011	0.6335
0.75	234.0	0.332	0.5788
0.75	246.0	0.7993	0.4658
0.75	258.0	-0.1996	0.4351
0.75	270.0	-0.0138	0.6274
0.85	138.0	0.4593	0.8559
0.85	150.0	-1.443	0.635
0.85	222.0	-0.189	0.665
0.85	234.0	-0.1632	0.4246
0.85	246.0	-0.1564	0.4217
0.85	258.0	0.0199	0.4562
0.85	270.0	-0.5131	0.5409
0.95	138.0	-0.5512	0.6011
0.95	234.0	-0.4286	0.5525
0.95	246.0	-1.0131	0.4435
0.95	258.0	0.9701	0.6003

CLAS Physics Database