Measurement E151M1631

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:	0.0308
Q²:	0.0291 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6788

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	18.0	-2.2209	0.8263
0.45	30.0	-1.2817	1.0663
0.45	42.0	1.3886	0.9265
0.45	210.0	1.1966	0.9332
0.45	222.0	-1.0546	1.2108
0.45	234.0	-0.8991	1.0389
0.55	138.0	-2.9242	2.9242
0.55	150.0	0.7699	1.1841
0.55	210.0	-0.1986	1.046
0.55	222.0	-2.1772	0.5756
0.55	234.0	-0.3485	0.9003
0.55	246.0	0.0228	1.2351
0.65	138.0	0.5058	1.1907
0.65	162.0	-2.1474	0.739
0.65	210.0	-0.668	0.9832
0.65	222.0	-0.9124	0.7725
0.65	234.0	0.4763	0.8976
0.65	246.0	1.2425	0.8915
0.75	162.0	0.2304	1.0406
0.75	210.0	1.925	0.8845
0.75	222.0	-1.0172	1.0432
0.75	234.0	-1.4974	0.8224
0.75	246.0	0.0904	0.9716
0.85	210.0	-0.8041	1.0957
0.85	222.0	0.532	0.907
0.85	234.0	-0.6393	0.7972
0.85	246.0	-1.3848	1.0015
0.95	234.0	-0.3604	0.9236
0.35	42.0	-1.0718	0.9017
0.45	30.0	-0.2968	0.7846
0.45	42.0	-0.9155	0.9112
0.45	222.0	-3.0824	3.0824
0.55	138.0	-0.6532	0.7498
0.55	150.0	-0.9369	0.7436
0.55	234.0	0.1026	0.8097
0.65	138.0	0.5265	0.7144
0.65	150.0	0.1715	0.8317
0.65	162.0	0.3201	0.9338
0.65	210.0	-0.9827	0.7992
0.65	222.0	0.2316	0.8333
0.65	234.0	1.1079	0.792
0.65	246.0	0.515	0.8227
0.75	150.0	0.2107	0.8747
0.75	162.0	-1.3348	0.8489
0.75	210.0	-0.6611	0.8555
0.75	222.0	-1.6211	0.7688
0.75	234.0	-0.8977	0.8035
0.75	246.0	-0.1886	0.8334
0.85	138.0	0.5391	0.9123
0.85	150.0	-0.7709	0.8453
0.85	210.0	-0.5951	0.9152
0.85	222.0	-1.1621	0.776
0.85	234.0	-0.3341	0.8016

CLAS Physics Database