Measurement E151M1475

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:	0.0709
Q²:	0.0143 GeV²
W:	1295.0 GeV
E_beam:	1.3383 GeV
ε:	0.9232

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	234.0	0.7093	0.7317
0.65	246.0	-1.4117	0.607
0.65	258.0	-0.5633	0.6641
0.75	150.0	-0.1132	0.7551
0.75	162.0	-0.411	0.9336
0.75	174.0	0.1213	1.0027
0.75	222.0	1.1046	0.6852
0.75	234.0	-0.4539	0.7256
0.75	246.0	1.0073	0.5735
0.75	258.0	-1.2559	0.5779
0.75	270.0	0.5808	0.8547
0.85	246.0	-0.3487	0.689
0.85	258.0	-0.3291	0.768
0.55	246.0	0.0153	0.697
0.65	234.0	-0.5007	0.4998
0.65	246.0	0.6118	0.5707
0.65	258.0	-0.7336	0.5529
0.65	270.0	0.3198	0.6122
0.75	150.0	0.0339	0.6596
0.75	162.0	0.5434	0.7914
0.75	222.0	-0.3568	0.6362
0.75	234.0	-0.1109	0.5255
0.75	246.0	0.0878	0.476
0.75	258.0	-0.6751	0.5366
0.75	270.0	1.762	0.5928
0.85	234.0	0.4866	0.521
0.85	246.0	0.4017	0.5332
0.85	258.0	0.1014	0.5144

CLAS Physics Database