Measurement E151M3587

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:	0.1764
Q²:	0.348 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8352

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.65	102.0	-0.3415	0.267	0.0308
0.65	114.0	0.3151	0.2685	0.0307
0.65	138.0	0.5714	0.2222	0.0321
0.65	222.0	0.0279	0.2726	0.03
0.75	78.0	0.3781	0.2135	0.0309
0.75	114.0	0.3992	0.2417	0.031
0.75	186.0	-0.0694	0.2651	0.03
0.75	198.0	0.1318	0.2524	0.0301
0.75	210.0	-0.2654	0.2278	0.0305
0.75	234.0	0.2764	0.2482	0.0305
0.75	246.0	0.3746	0.2384	0.0309
0.85	66.0	0.1771	0.2446	0.0302
0.85	78.0	0.0349	0.275	0.03
0.85	90.0	0.4748	0.2336	0.0315
0.85	102.0	0.0453	0.2716	0.03
0.85	186.0	-0.4326	0.2633	0.0312
0.85	198.0	0.014	0.2311	0.03
0.85	210.0	-0.0607	0.2181	0.03
0.85	222.0	0.0154	0.1979	0.03
0.85	234.0	-0.2438	0.2016	0.0304
0.85	246.0	-0.1399	0.2587	0.0301
0.85	258.0	0.1463	0.2844	0.0301
0.95	186.0	0.0094	0.2419	0.03
0.95	198.0	0.1572	0.2055	0.0302
0.95	210.0	-0.5497	0.229	0.032
0.95	222.0	-0.0853	0.2186	0.03
0.95	234.0	-0.2128	0.2198	0.0303
0.95	246.0	-0.4426	0.1954	0.0313
0.95	258.0	-0.3211	0.2179	0.0307
0.95	270.0	0.5646	0.2036	0.0321
0.95	282.0	-0.316	0.2408	0.0307

CLAS Physics Database