Measurement E151M1701

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:	0.6926
Q²:	0.1205 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.956

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	-0.1118	0.6137
0.45	66.0	0.6952	0.6272
0.45	78.0	0.1552	0.5577
0.45	282.0	0.0678	0.5489
0.55	78.0	-0.5674	0.547
0.55	270.0	-0.1316	0.4607
0.55	282.0	-0.6207	0.5041
0.65	258.0	0.3548	0.6402
0.65	270.0	-0.6217	0.372
0.65	282.0	0.5407	0.4793
0.75	102.0	-0.5223	0.6111
0.75	258.0	-0.2966	0.4906
0.75	270.0	-0.7914	0.3979
0.75	282.0	0.6242	0.4445
0.85	90.0	-0.5407	0.5235
0.85	102.0	0.3738	0.5009
0.85	114.0	0.5388	0.4113
0.85	126.0	-0.0682	0.4445
0.85	138.0	-0.2523	0.5831
0.85	258.0	-0.4746	0.4657
0.85	270.0	-0.1382	0.4823
0.95	90.0	0.8501	0.4435
0.95	102.0	0.2167	0.4313
0.95	114.0	0.8932	0.4162
0.95	126.0	-0.411	0.3979
0.95	138.0	-0.2407	0.4928
0.95	150.0	1.1361	0.3719
0.95	162.0	-0.7072	0.4586
0.95	174.0	-0.4667	0.5024
0.95	186.0	1.1877	0.4477
0.95	246.0	0.3632	0.5289

CLAS Physics Database