CLAS Physics Database

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Measurement E151M2924

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: A_LU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.1435 GeV²
W :	1235 GeV
ε :	0.9507
E_beam :	1.9889 GeV
ε_L:	0.7731

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LU	Stat. error	Syst. error
0.35	66	0.0698	0.2557	0.03
0.45	66	0.2678	0.261	0.0305
0.45	78	0.0157	0.2392	0.03
0.45	282	0.1515	0.2263	0.0302
0.55	78	-0.6987	0.1917	0.0331
0.55	270	-0.4216	0.246	0.0312
0.55	282	-0.015	0.2075	0.03
0.65	258	-0.3509	0.2439	0.0308
0.65	270	0.4005	0.1848	0.0311
0.65	282	-0.2421	0.1906	0.0304
0.75	90	0.3546	0.2479	0.0308
0.75	258	0.1122	0.191	0.0301
0.75	270	-0.0441	0.1764	0.03
0.75	282	-0.2011	0.2074	0.0303
0.85	90	0.1617	0.2101	0.0302
0.85	102	-0.2984	0.1798	0.0306
0.85	114	0.3589	0.1795	0.0308
0.85	126	0.1485	0.222	0.0301
0.85	258	0.1035	0.2509	0.0301
0.85	270	0.148	0.2211	0.0301
0.85	282	-0.0757	0.2693	0.03
0.95	78	-0.2905	0.2509	0.0306
0.95	90	0.2426	0.2019	0.0304
0.95	102	-0.0954	0.2225	0.0301
0.95	114	0.1286	0.2539	0.0301
0.95	126	0.0531	0.2062	0.03
0.95	138	-0.0336	0.2107	0.03
0.95	150	0.01	0.2398	0.03
0.95	174	0.0968	0.2328	0.0301