Measurement E151M1289

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:	0.0788
Q²:	0.0171 GeV²
W:	1295.0 GeV
E_beam:	1.0539 GeV
ε:	0.8636

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.3954	0.574
0.25	54.0	-0.8632	0.5365
0.35	42.0	-0.7778	0.5817
0.35	54.0	0.3222	0.5747
0.35	66.0	-0.1475	0.7531
0.45	30.0	-2.187	2.187
0.45	42.0	0.2276	0.5318
0.45	54.0	-0.7484	0.6734
0.45	258.0	0.5935	0.6615
0.45	270.0	-1.3314	0.7684
0.55	30.0	-0.0992	0.6687
0.55	42.0	-0.0828	0.5478
0.55	54.0	1.0106	0.6321
0.55	234.0	-0.367	0.5152
0.55	246.0	-0.6947	0.4132
0.55	258.0	0.0672	0.4121
0.55	270.0	-1.1382	0.4847
0.65	138.0	-0.1905	0.6831
0.65	150.0	-0.4532	0.6274
0.65	162.0	-0.4838	0.5848
0.65	174.0	0.6401	0.7335
0.65	186.0	0.1866	0.7921
0.65	210.0	-0.3318	0.7027
0.65	222.0	-0.4062	0.5135
0.65	234.0	-0.5542	0.4116
0.65	246.0	-0.4278	0.3582
0.65	258.0	-0.058	0.3272
0.65	270.0	0.0923	0.4157
0.65	282.0	1.3721	0.7527
0.75	138.0	0.6251	0.5673
0.75	150.0	-0.3891	0.4814
0.75	162.0	0.6922	0.4662
0.75	174.0	-1.3371	0.4715
0.75	186.0	0.2766	0.6252
0.75	198.0	0.3673	0.6178
0.75	210.0	0.0493	0.6391
0.75	222.0	0.0465	0.4748
0.75	234.0	0.2727	0.3841
0.75	246.0	0.2474	0.3353
0.75	258.0	-0.077	0.3899
0.75	270.0	0.2658	0.4362
0.75	282.0	1.0068	0.6312
0.85	126.0	-0.2107	0.8153
0.85	138.0	0.259	0.6841
0.85	150.0	-1.3151	0.5634
0.85	162.0	0.796	0.6246
0.85	174.0	0.7312	0.6489
0.85	186.0	1.3809	0.6902
0.85	198.0	-1.0888	0.6988
0.85	210.0	1.4568	0.5962
0.85	222.0	0.8201	0.5144
0.85	234.0	-0.411	0.3752
0.85	246.0	0.1005	0.3287
0.85	258.0	0.0551	0.3359
0.85	270.0	0.6855	0.465

CLAS Physics Database