Measurement E151M502

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_UL
ε_L:	0.2004
Q²:	0.0415 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.9621

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.15	306.0	0.1854	0.5152
0.25	78.0	0.8762	0.6905
0.25	294.0	-0.6001	0.4051
0.25	306.0	0.3241	0.4736
0.25	318.0	0.1774	0.5473
0.35	66.0	0.5357	0.4376
0.35	78.0	0.316	0.4424
0.35	282.0	-0.3652	0.5553
0.35	294.0	-0.3389	0.4117
0.35	306.0	0.1846	0.3933
0.45	66.0	1.0514	0.4147
0.45	78.0	0.308	0.3348
0.45	90.0	1.5506	0.4209
0.45	282.0	-0.3103	0.3995
0.45	294.0	0.0996	0.3728
0.45	306.0	1.3665	0.5069
0.55	66.0	0.8497	0.465
0.55	78.0	0.0343	0.3346
0.55	90.0	-0.2331	0.3178
0.55	258.0	-0.7178	0.3854
0.55	270.0	0.057	0.5216
0.55	282.0	0.0549	0.4257
0.55	294.0	-0.6914	0.4235
0.65	78.0	0.4688	0.4357
0.65	90.0	-0.0001	0.393
0.65	102.0	-0.9051	0.4849
0.65	114.0	0.325	0.574
0.65	234.0	0.3077	0.4294
0.65	246.0	-0.343	0.3876
0.65	258.0	0.0749	0.3027
0.65	270.0	0.1594	0.3593
0.65	282.0	-0.2136	0.5274
0.75	90.0	0.6891	0.6101
0.75	102.0	0.7053	0.6373
0.75	114.0	0.564	0.4451
0.75	126.0	0.1739	0.373
0.75	138.0	0.1392	0.382
0.75	150.0	0.0023	0.4843
0.75	162.0	-0.164	0.5113
0.75	222.0	-0.5108	0.3914
0.75	234.0	-0.3324	0.3364
0.75	246.0	0.253	0.2748
0.75	258.0	0.3705	0.2955
0.75	270.0	0.1938	0.3921
0.85	102.0	-0.5929	0.5275
0.85	114.0	-0.7778	0.3216
0.85	126.0	0.4885	0.3707
0.85	138.0	-0.4904	0.3251
0.85	150.0	0.1142	0.3795
0.85	162.0	0.3377	0.4483
0.85	198.0	0.0772	0.587
0.85	210.0	-0.009	0.4486
0.85	222.0	0.2995	0.3534
0.85	234.0	0.6837	0.3562
0.85	246.0	0.0382	0.3168
0.85	258.0	-0.1235	0.2876
0.85	270.0	0.2119	0.4765
0.95	126.0	0.603	0.5783
0.95	138.0	0.5314	0.5692
0.95	150.0	-0.0068	0.5188
0.95	162.0	0.2506	0.5244
0.95	174.0	-0.3527	0.4973
0.95	186.0	-0.4322	0.4806
0.95	222.0	-0.5257	0.4749
0.95	234.0	0.4831	0.5141

CLAS Physics Database