Measurement E151M1697

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:	0.4081
Q²:	0.0593 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9696

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	66.0	0.1404	0.5812	0.0312
0.35	78.0	0.3412	0.5934	0.0364
0.45	66.0	0.2429	0.5829	0.0334
0.45	78.0	-0.0035	0.4384	0.03
0.55	78.0	0.0739	0.4198	0.0303
0.55	90.0	0.1108	0.4232	0.0307
0.55	270.0	-0.1775	0.595	0.0319
0.65	90.0	-0.007	0.4643	0.03
0.65	258.0	0.7512	0.3731	0.0545
0.65	270.0	0.33	0.405	0.0361
0.75	102.0	-0.9888	0.6675	0.067
0.75	114.0	-0.4687	0.5445	0.0413
0.75	126.0	0.5887	0.5161	0.0466
0.75	234.0	0.6397	0.5318	0.049
0.75	246.0	0.0351	0.493	0.0301
0.75	258.0	0.5638	0.3582	0.0455
0.75	270.0	-0.6357	0.4844	0.0488
0.85	102.0	0.3461	0.6373	0.0366
0.85	114.0	-0.6486	0.4526	0.0494
0.85	126.0	0.1235	0.3944	0.0309
0.85	138.0	-0.1849	0.4282	0.032
0.85	150.0	0.5123	0.3895	0.0432
0.85	162.0	0.4045	0.535	0.0387
0.85	174.0	-0.357	0.5299	0.037
0.85	186.0	0.8356	0.4915	0.0589
0.85	198.0	-0.4457	0.6334	0.0404
0.85	210.0	-1.339	0.5199	0.0865
0.85	222.0	0.2263	0.5633	0.033
0.85	234.0	0.7339	0.4836	0.0536
0.85	246.0	-0.1542	0.4564	0.0314
0.85	258.0	0.1011	0.5171	0.0306
0.95	114.0	0.3063	0.5686	0.0353
0.95	126.0	0.0737	0.4637	0.0303
0.95	138.0	-0.0097	0.4552	0.03
0.95	150.0	0.9223	0.368	0.0634
0.95	162.0	0.5662	0.4491	0.0456
0.95	174.0	0.3103	0.4777	0.0354
0.95	186.0	0.81	0.4767	0.0575
0.95	198.0	-0.4734	0.5381	0.0415
0.95	210.0	0.7145	0.4404	0.0527

CLAS Physics Database