Measurement E151M1437

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:	0.1105
Q²:	0.0143 GeV²
W:	1235.0 GeV
E_beam:	1.3383 GeV
ε:	0.9503

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	258.0	-0.4511	0.48	0.0404
0.75	174.0	0.4982	0.6242	0.0423
0.75	234.0	-0.6101	0.6176	0.0473
0.75	246.0	-0.378	0.6414	0.0376
0.75	258.0	0.0106	0.5235	0.03
0.85	162.0	0.7724	0.5831	0.0552
0.55	258.0	0.7949	0.6762	0.0551
0.55	270.0	-0.2825	0.7622	0.0342
0.65	246.0	-0.1465	0.7683	0.0312
0.65	258.0	-0.3938	0.7155	0.0377
0.75	174.0	1.2488	0.6071	0.0786
0.75	258.0	-0.6279	0.6983	0.0473
0.75	270.0	0.1371	0.6691	0.031

CLAS Physics Database