Measurement E151M1248

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:	0.1483
Q²:	0.0205 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9092

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	30.0	0.0013	0.6212
0.25	42.0	0.482	0.5442
0.25	54.0	-0.0456	0.4878
0.35	30.0	-0.1637	0.6064
0.35	42.0	-0.1888	0.4435
0.35	54.0	0.5443	0.4938
0.45	42.0	0.2102	0.4174
0.45	54.0	-0.3816	0.4436
0.45	66.0	-0.1407	0.5999
0.45	246.0	1.1269	0.6151
0.45	258.0	-0.2778	0.5342
0.45	270.0	-0.7803	0.4057
0.45	282.0	-0.6859	0.4205
0.55	234.0	-0.1253	0.6561
0.55	246.0	-0.9459	0.3702
0.55	258.0	0.4361	0.3194
0.55	270.0	0.7475	0.3079
0.55	282.0	0.0846	0.3856
0.65	150.0	0.0777	0.6092
0.65	162.0	-0.0355	0.627
0.65	174.0	0.5356	0.6228
0.65	186.0	0.242	0.5898
0.65	198.0	-1.0242	0.5424
0.65	234.0	0.0617	0.4318
0.65	246.0	-0.3725	0.302
0.65	258.0	-0.2369	0.2562
0.65	270.0	-0.1432	0.2612
0.65	282.0	0.7586	0.3724
0.75	138.0	-0.4175	0.5824
0.75	150.0	0.5521	0.4792
0.75	162.0	-0.3566	0.4174
0.75	174.0	-0.0912	0.368
0.75	186.0	-0.9243	0.3476
0.75	198.0	0.0628	0.3893
0.75	210.0	0.9935	0.4544
0.75	222.0	-0.1846	0.4266
0.75	234.0	0.0546	0.3751
0.75	246.0	0.5652	0.2749
0.75	258.0	-0.052	0.2665
0.75	270.0	0.1131	0.3355
0.75	282.0	0.1432	0.4715
0.85	138.0	0.8911	0.5629
0.85	150.0	0.5629	0.413
0.85	162.0	-0.4413	0.4101
0.85	174.0	0.5462	0.3405
0.85	186.0	-0.1983	0.4043
0.85	198.0	0.7903	0.3994
0.85	210.0	0.1449	0.506
0.85	222.0	-0.6396	0.4941
0.85	234.0	-0.0651	0.3894
0.85	246.0	-0.118	0.3842
0.85	258.0	0.3332	0.3622
0.85	270.0	0.4168	0.531

CLAS Physics Database