Measurement E151M1407

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:	0.0126
Q²:	0.0101 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.603

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-0.501	0.8252
0.35	30.0	0.7477	0.8433
0.35	42.0	0.4823	0.7065
0.35	54.0	0.7629	0.6257
0.35	66.0	0.4418	0.8307
0.45	42.0	0.411	0.7573
0.45	54.0	-0.7226	0.6386
0.45	66.0	-1.1953	0.774
0.45	222.0	-1.163	0.6643
0.45	234.0	-0.9408	0.7345
0.55	30.0	-0.7573	0.8376
0.55	42.0	-0.8026	0.7124
0.55	54.0	1.0298	0.8722
0.55	66.0	-1.9079	0.7503
0.55	150.0	-0.185	0.8921
0.55	162.0	-1.0004	0.8558
0.55	186.0	-1.4449	0.7919
0.55	210.0	1.4192	0.8005
0.55	222.0	-1.0796	0.659
0.55	234.0	0.1359	0.5746
0.55	246.0	-0.9928	0.576
0.55	258.0	-1.1274	0.7502
0.65	42.0	0.6662	0.8725
0.65	162.0	-0.6258	0.8835
0.65	210.0	0.1984	0.85
0.65	222.0	-0.4243	0.6598
0.65	234.0	-0.5223	0.5668
0.65	246.0	0.4814	0.7024
0.75	222.0	-0.4342	0.6988
0.75	234.0	-0.1583	0.583
0.75	246.0	-0.1432	0.5489
0.85	210.0	-0.3352	0.832
0.85	222.0	-0.5638	0.6269
0.85	234.0	-0.4458	0.6328
0.85	246.0	0.6634	0.5952

CLAS Physics Database