Measurement E151M1411

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:	0.0246
Q²:	0.0205 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5888

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	30.0	-0.1796	0.8978
0.25	42.0	0.7186	0.7676
0.25	54.0	-1.6031	0.8396
0.35	42.0	0.0977	0.6272
0.35	54.0	0.3821	0.6449
0.35	66.0	-1.6503	0.6729
0.45	42.0	-0.5438	0.7707
0.45	54.0	-0.8249	0.6875
0.45	66.0	0.2991	0.6725
0.45	222.0	0.5826	0.716
0.45	234.0	0.4914	0.7031
0.45	246.0	0.4052	0.677
0.45	258.0	-0.1951	0.7454
0.55	30.0	0.888	0.8756
0.55	42.0	-0.0534	0.6952
0.55	54.0	-0.4987	0.6907
0.55	66.0	1.3356	0.8649
0.55	162.0	-0.1896	0.7305
0.55	174.0	-0.2814	0.9003
0.55	222.0	-1.1896	0.6898
0.55	234.0	0.4951	0.5996
0.55	246.0	-0.9558	0.5323
0.55	258.0	-0.1137	0.788
0.65	150.0	-1.4316	0.7467
0.65	162.0	-1.0892	0.7526
0.65	174.0	-0.2826	0.7843
0.65	222.0	1.6473	0.604
0.65	234.0	-0.6592	0.4857
0.65	246.0	-0.4614	0.5309
0.65	258.0	-0.5509	0.5819
0.75	42.0	-0.1026	0.6588
0.75	162.0	-1.7055	0.7384
0.75	222.0	-0.5114	0.6137
0.75	234.0	-1.0157	0.5527
0.75	246.0	0.039	0.4692
0.75	258.0	0.1859	0.6729
0.85	222.0	-0.0166	0.5711
0.85	234.0	0.1689	0.5984
0.85	246.0	-0.7579	0.4965
0.85	258.0	0.3881	0.521

CLAS Physics Database