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	syst. uncert.
0.35	42.0	-2.2554	0.804	0.2561
0.35	54.0	-0.0327	0.9459	0.0302
0.45	42.0	-0.6325	0.8567	0.0774
0.45	54.0	-1.0652	0.631	0.1238
0.45	222.0	1.0926	0.8071	0.1268
0.45	234.0	-1.3564	0.7906	0.1559
0.55	18.0	-1.1202	0.8684	0.1299
0.55	30.0	-1.1385	0.8603	0.1319
0.55	42.0	-0.1583	0.8158	0.0349
0.55	54.0	-0.7095	0.823	0.0855
0.55	222.0	-0.5495	0.7989	0.0689
0.55	234.0	0.5224	0.7242	0.0661
0.55	246.0	-0.0078	0.8918	0.03
0.65	42.0	0.1166	0.9714	0.0328
0.65	54.0	-0.9671	0.7902	0.1131
0.65	150.0	-1.8333	0.9455	0.2089
0.65	174.0	0.1242	0.9437	0.0331
0.65	222.0	-1.4829	0.6466	0.1699
0.65	234.0	0.9018	0.5697	0.106
0.65	246.0	-0.616	0.7853	0.0757
0.75	222.0	-0.0264	0.895	0.0301
0.75	234.0	0.2829	0.7011	0.0438
0.75	246.0	0.5143	0.6277	0.0653
0.85	210.0	1.7114	0.833	0.1953
0.85	222.0	-0.4969	0.6982	0.0636
0.85	234.0	-0.4371	0.805	0.0577
0.85	246.0	-0.6328	0.6373	0.0774

CLAS Physics Database