Measurement E151M2826

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_LU
ε_L:	0.1803
Q²:	0.1715 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.6422

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.65	234.0	0.3623	0.2576	0.0309
0.65	246.0	-0.0979	0.244	0.0301
0.75	126.0	0.0312	0.2787	0.03
0.75	234.0	-0.0362	0.2548	0.03
0.75	246.0	-0.0468	0.2461	0.03
0.75	258.0	0.0635	0.242	0.03
0.75	270.0	-0.181	0.2495	0.0302
0.85	126.0	0.3955	0.26	0.031
0.85	138.0	-0.1141	0.2581	0.0301
0.85	246.0	0.176	0.2796	0.0302
0.85	258.0	-0.11	0.2494	0.0301
0.85	270.0	-0.2715	0.2425	0.0305
0.95	246.0	-0.1967	0.2806	0.0303
0.95	282.0	-0.1957	0.2702	0.0303
0.55	246.0	-0.2806	0.3903	0.0305
0.65	234.0	-0.0763	0.4141	0.03
0.65	246.0	-0.4225	0.3184	0.0312
0.65	258.0	-0.4426	0.2794	0.0313
0.75	246.0	0.3171	0.3377	0.0307
0.75	258.0	-0.7102	0.236	0.0332
0.75	270.0	-0.2974	0.3637	0.0306
0.85	234.0	0.0057	0.3044	0.03
0.85	246.0	-0.296	0.2618	0.0306
0.85	258.0	0.1151	0.3582	0.0301
0.85	270.0	-0.2235	0.3565	0.0303
0.85	282.0	0.3661	0.3126	0.0309
0.95	270.0	-0.5245	0.3153	0.0318

CLAS Physics Database