Measurement E151M1650

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:	0.0298
Q²:	0.0348 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6254

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	138.0	1.2026	0.9413
0.55	246.0	-1.2642	0.91
0.65	222.0	0.015	0.9575
0.65	234.0	-1.5093	0.8126
0.65	246.0	0.5726	0.8977
0.75	162.0	0.7827	0.9317
0.75	210.0	-0.5861	1.0046
0.75	222.0	-1.1458	0.8255
0.75	234.0	0.6602	0.813
0.85	138.0	-2.2069	0.8573
0.85	222.0	-0.6623	0.7729
0.85	234.0	-0.8442	0.8626
0.85	246.0	0.7777	0.8334
0.35	42.0	-0.2841	1.32
0.45	222.0	-0.6653	1.1855
0.55	222.0	2.4822	2.4822
0.55	234.0	-0.9189	1.0118
0.65	138.0	-1.1805	1.1517
0.65	150.0	-0.258	1.4443
0.65	210.0	0.7658	1.1418
0.65	222.0	2.6556	2.6556
0.65	234.0	-0.0929	1.2296
0.65	246.0	-2.0442	0.6661
0.75	222.0	-1.1609	1.0136
0.75	234.0	-1.1767	0.9796
0.75	246.0	-1.1208	1.3543
0.85	150.0	-0.5335	1.4152
0.85	210.0	-0.8389	1.2047
0.85	222.0	0.6771	0.8584
0.85	234.0	-0.0208	1.1293
0.85	246.0	-0.9136	1.1357

CLAS Physics Database