Measurement E151M1357

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:	0.0782
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_LL	uncertainty
0.25	42.0	1.0019	0.6919
0.25	54.0	1.6317	0.7289
0.35	30.0	1.0051	0.9732
0.35	42.0	-0.1263	0.6703
0.35	54.0	1.596	0.7154
0.45	18.0	1.3706	0.966
0.45	30.0	-0.5841	0.7282
0.45	42.0	-0.5024	0.7126
0.45	54.0	-1.4141	0.6632
0.45	258.0	-0.1752	0.9657
0.55	42.0	-0.0134	0.7594
0.55	54.0	-0.9296	0.8313
0.55	150.0	-0.963	0.9526
0.55	222.0	0.6823	0.9421
0.55	234.0	0.0937	0.7457
0.55	246.0	0.2919	0.6349
0.55	258.0	-0.339	0.5935
0.55	270.0	-1.3587	0.805
0.65	138.0	0.33	0.8881
0.65	150.0	-0.2955	0.9078
0.65	162.0	-0.6488	0.8493
0.65	174.0	1.3648	0.8982
0.65	186.0	0.2596	0.9527
0.65	222.0	0.8268	0.6762
0.65	234.0	-0.0283	0.5228
0.65	246.0	-0.1867	0.5307
0.65	258.0	0.3168	0.6076
0.65	270.0	-0.7549	0.7821
0.75	138.0	0.6648	0.7284
0.75	150.0	0.9736	0.7641
0.75	162.0	0.3377	0.6472
0.75	174.0	0.6739	0.7859
0.75	222.0	-0.3698	0.7613
0.75	234.0	0.1368	0.5234
0.75	246.0	0.3107	0.5314
0.75	258.0	-0.2684	0.4866
0.75	270.0	-0.1381	0.6729
0.85	150.0	1.3739	0.9106
0.85	162.0	0.8317	0.9425
0.85	174.0	-0.6535	0.8249
0.85	210.0	-1.2245	0.829
0.85	222.0	0.3835	0.7252
0.85	234.0	0.7775	0.5382
0.85	246.0	-0.7811	0.5143
0.85	258.0	0.2213	0.5348
0.85	270.0	0.8389	0.5855
0.95	126.0	-0.6043	0.7601
0.95	234.0	0.3132	0.7488
0.95	246.0	0.0993	0.6095
0.95	258.0	0.9149	0.6607

CLAS Physics Database