Measurement E151M1333

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:	0.0601
Q²:	0.0205 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.793

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.863	0.7359
0.25	54.0	-0.6781	0.9141
0.35	30.0	-0.3649	0.7053
0.35	42.0	-0.5643	0.667
0.35	54.0	0.2694	0.6698
0.35	66.0	-0.0626	0.9328
0.45	18.0	-0.7685	0.8079
0.45	30.0	1.4543	0.6122
0.45	42.0	0.4326	0.5658
0.45	54.0	0.3358	0.578
0.45	234.0	0.4699	0.9273
0.45	258.0	0.1958	0.8233
0.55	30.0	-0.6442	0.685
0.55	42.0	0.7785	0.5214
0.55	54.0	0.64	0.6359
0.55	222.0	-0.2957	0.7076
0.55	234.0	-0.1301	0.56
0.55	246.0	0.293	0.534
0.55	258.0	1.2671	0.5416
0.55	270.0	-0.6604	0.7973
0.65	54.0	-1.4145	0.8997
0.65	138.0	-0.2644	0.8723
0.65	150.0	-0.7595	0.7062
0.65	162.0	-1.0678	0.6948
0.65	174.0	1.5031	0.7223
0.65	210.0	-1.3614	0.9396
0.65	222.0	0.1678	0.6094
0.65	234.0	0.1031	0.5197
0.65	246.0	0.4273	0.4571
0.65	258.0	0.4269	0.5311
0.65	270.0	0.6892	0.7014
0.75	138.0	-0.9992	0.7569
0.75	150.0	0.1787	0.7543
0.75	162.0	-0.5848	0.6708
0.75	174.0	0.6006	0.8276
0.75	186.0	0.8133	0.8451
0.75	210.0	0.2719	0.8696
0.75	222.0	1.4505	0.6931
0.75	234.0	-0.1088	0.4672
0.75	246.0	0.4584	0.4853
0.75	258.0	0.6051	0.5229
0.75	270.0	0.6313	0.6231
0.85	138.0	0.5491	0.863
0.85	150.0	0.15	0.8354
0.85	162.0	1.2806	0.8101
0.85	222.0	-0.6229	0.5512
0.85	234.0	0.4061	0.5009
0.85	246.0	0.0009	0.427
0.85	258.0	-0.1269	0.5145
0.85	270.0	0.9302	0.5947
0.95	234.0	0.9312	0.6238
0.95	246.0	-0.0811	0.7052

CLAS Physics Database