Measurement E151M1628

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:	0.0187
Q²:	0.0171 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6896

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	42.0	-0.1742	0.6508
0.45	18.0	-0.4979	1.2799
0.45	30.0	-0.9668	0.5687
0.45	42.0	0.3038	0.6812
0.45	222.0	-2.3358	0.7083
0.55	42.0	-1.3267	1.0878
0.55	210.0	0.6072	0.9316
0.55	222.0	-0.1998	0.9473
0.55	234.0	0.2811	0.9141
0.55	246.0	1.9705	0.931
0.65	138.0	0.9878	0.9714
0.65	210.0	-0.3132	1.2587
0.65	222.0	-0.7999	0.9289
0.65	234.0	0.4545	1.0187
0.75	210.0	-0.7963	1.1429
0.75	222.0	-0.378	0.9487
0.75	234.0	-1.4464	1.1486
0.75	246.0	0.5126	1.0567
0.85	210.0	0.3665	0.9725
0.85	222.0	0.5506	0.9115
0.85	234.0	1.4057	0.5949
0.45	234.0	-0.8012	1.0237
0.55	42.0	-0.4951	0.8601
0.55	138.0	-1.0528	0.9183
0.55	210.0	-0.8175	1.006
0.55	222.0	0.0063	0.78
0.55	234.0	0.0661	0.8368
0.55	246.0	-1.3446	0.9208
0.65	126.0	0.5607	0.9086
0.65	150.0	-0.169	0.9028
0.65	162.0	0.4702	0.8991
0.65	210.0	1.6194	0.7985
0.65	222.0	0.1672	0.8633
0.65	234.0	0.0942	0.8129
0.75	210.0	0.3412	0.9607
0.75	222.0	0.0899	0.7031
0.75	234.0	-0.9645	0.6874
0.85	126.0	0.7935	0.898
0.85	138.0	1.0418	0.9523
0.85	210.0	0.9893	0.8866
0.85	222.0	0.2397	0.8508
0.85	234.0	-0.1877	0.7326
0.85	246.0	-1.129	0.8189

CLAS Physics Database