Measurement E151M1581

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:	0.134
Q²:	0.0844 GeV²
W:	1445.0 GeV
E_beam:	1.3383 GeV
ε:	0.7524

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	138.0	0.6516	0.7955
0.55	234.0	0.8176	0.5801
0.55	246.0	0.7657	0.5121
0.65	126.0	-0.5029	0.8274
0.65	138.0	0.1357	0.8811
0.65	150.0	-0.1067	0.7575
0.65	162.0	0.5718	0.871
0.65	222.0	0.4018	0.8461
0.65	234.0	0.6382	0.7441
0.65	246.0	0.2379	0.7007
0.65	258.0	-0.66	0.767
0.75	114.0	0.3139	0.7559
0.75	126.0	-0.2918	0.859
0.75	138.0	-0.1841	0.7015
0.75	150.0	0.5973	0.8598
0.75	222.0	-0.8958	0.7948
0.75	234.0	-0.0122	0.7402
0.75	246.0	0.1786	0.8485
0.75	258.0	-0.3135	0.6752
0.75	270.0	-1.4302	0.8071
0.85	114.0	-0.0189	0.7515
0.85	126.0	1.9034	0.804
0.85	138.0	-0.742	0.7522
0.85	150.0	0.2756	0.8456
0.85	222.0	0.0708	0.8437
0.85	234.0	0.4106	0.6674
0.85	246.0	0.1609	0.6582
0.85	258.0	0.4137	0.6018
0.85	270.0	-0.2545	0.6116
0.95	102.0	-0.0701	0.7108
0.95	234.0	0.4409	0.6649
0.95	246.0	-0.4162	0.656
0.95	258.0	-0.3963	0.615
0.95	270.0	0.6891	0.5894
0.95	282.0	0.6257	0.7054
0.55	258.0	-0.8504	0.9016
0.65	126.0	-0.3532	0.9236
0.65	138.0	0.09	1.1627
0.65	222.0	0.7353	0.9556
0.65	234.0	0.2078	0.8334
0.65	246.0	-1.1143	0.7801
0.65	258.0	0.0988	0.8445
0.75	114.0	-1.1371	1.1039
0.75	126.0	0.4856	0.9962
0.75	138.0	-2.1489	0.8888
0.75	162.0	-2.8395	2.8395
0.75	222.0	1.1857	0.9132
0.75	234.0	0.5786	0.795
0.75	246.0	-0.2137	0.8598
0.75	258.0	-0.4775	0.8347
0.75	270.0	-0.6482	1.0426
0.85	138.0	0.3862	1.0658
0.85	222.0	0.9093	0.9122
0.85	234.0	1.7868	0.5897
0.85	246.0	-1.7151	0.6041
0.85	258.0	0.2128	0.7635
0.85	270.0	-0.3305	0.7524
0.95	102.0	-0.1464	0.9291
0.95	114.0	1.2168	0.7853
0.95	234.0	1.1518	0.5799
0.95	246.0	0.8376	0.7696
0.95	258.0	1.4177	0.6628
0.95	270.0	0.2541	0.9395

CLAS Physics Database