Measurement E151M1368

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:	0.0141
Q²:	0.0071 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7202

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	42.0	-2.2554	0.804
0.35	54.0	-0.0327	0.9459
0.45	42.0	-0.6325	0.8567
0.45	54.0	-1.0652	0.631
0.45	222.0	1.0926	0.8071
0.45	234.0	-1.3564	0.7906
0.55	18.0	-1.1202	0.8684
0.55	30.0	-1.1385	0.8603
0.55	42.0	-0.1583	0.8158
0.55	54.0	-0.7095	0.823
0.55	222.0	-0.5495	0.7989
0.55	234.0	0.5224	0.7242
0.55	246.0	-0.0078	0.8918
0.65	42.0	0.1166	0.9714
0.65	54.0	-0.9671	0.7902
0.65	150.0	-1.8333	0.9455
0.65	174.0	0.1242	0.9437
0.65	222.0	-1.4829	0.6466
0.65	234.0	0.9018	0.5697
0.65	246.0	-0.616	0.7853
0.75	222.0	-0.0264	0.895
0.75	234.0	0.2829	0.7011
0.75	246.0	0.5143	0.6277
0.85	210.0	1.7114	0.833
0.85	222.0	-0.4969	0.6982
0.85	234.0	-0.4371	0.805
0.85	246.0	-0.6328	0.6373

CLAS Physics Database