CLAS Physics Database

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Measurement E151M3046

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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 :	0.1715 GeV²
W :	1475 GeV
ε :	0.8577
E_beam :	1.9889 GeV
ε_L:	0.2408

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
0.15	306	0.1916	0.2586	0.0302
0.25	66	0.535	0.1895	0.0319
0.25	78	-0.144	0.2864	0.0301
0.25	294	-0.1643	0.2241	0.0302
0.35	66	0.2882	0.2119	0.0305
0.35	78	0.1567	0.2052	0.0302
0.35	282	-0.0713	0.2198	0.03
0.35	294	-0.3755	0.2588	0.0309
0.45	66	-0.3458	0.2415	0.0308
0.45	78	-0.2039	0.2714	0.0303
0.45	282	-0.2862	0.2396	0.0305
0.45	294	0.2558	0.2165	0.0304
0.55	66	0.2359	0.2639	0.0304
0.55	102	-0.1372	0.2163	0.0301
0.55	114	0.3167	0.229	0.0307
0.55	246	-0.0128	0.2616	0.03
0.55	258	-0.437	0.2494	0.0312
0.55	282	-0.0129	0.2394	0.03
0.55	306	0.5053	0.2055	0.0317
0.65	66	-0.4408	0.2441	0.0313
0.65	90	0.1082	0.2387	0.0301
0.65	102	-0.1782	0.2001	0.0302
0.65	114	0.0246	0.1984	0.03
0.65	126	-0.3311	0.2118	0.0307
0.65	138	-0.2265	0.2645	0.0303
0.65	222	-0.0934	0.2559	0.0301
0.65	234	0.2409	0.25	0.0304
0.65	246	0.0103	0.2203	0.03
0.65	270	-0.4546	0.2417	0.0313
0.65	306	0.0766	0.2504	0.03
0.75	90	-0.2625	0.247	0.0305
0.75	102	-0.0943	0.1876	0.0301
0.75	114	0.1243	0.2085	0.0301
0.75	126	0.2393	0.2158	0.0304
0.75	138	0.217	0.2167	0.0303
0.75	210	-0.326	0.2197	0.0307
0.75	222	-0.0756	0.2244	0.03
0.75	234	0.1395	0.1826	0.0301
0.75	246	-0.1207	0.2036	0.0301
0.75	258	-0.4245	0.1752	0.0312
0.75	270	0.2364	0.2485	0.0304
0.85	78	-0.0776	0.1964	0.03
0.85	114	0.0418	0.1919	0.03
0.85	126	0.0313	0.1935	0.03
0.85	138	-0.1532	0.2761	0.0302
0.85	210	-0.3638	0.2517	0.0309
0.85	222	0.3873	0.2108	0.031
0.85	234	-0.0906	0.1922	0.0301
0.85	246	-0.3088	0.2109	0.0306
0.85	258	-0.0726	0.1909	0.03
0.85	270	0.3555	0.2068	0.0308
0.95	78	0.0993	0.2713	0.0301
0.95	90	0.334	0.1978	0.0307
0.95	222	0.0975	0.247	0.0301
0.95	234	0.2764	0.2151	0.0305
0.95	246	-0.4225	0.2069	0.0312
0.95	258	-0.1726	0.2152	0.0302
0.95	270	0.1714	0.1696	0.0302
0.95	282	-0.1376	0.2148	0.0301