CLAS Physics Database

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Measurement E151M3594

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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 :	0.1205 GeV²
W :	1745 GeV
ε :	0.8689
E_beam :	2.999 GeV
ε_L:	0.0706

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
0.25	78	0.4328	0.2492	0.0312
0.35	78	-0.2905	0.255	0.0306
0.35	270	0.2553	0.2496	0.0304
0.35	282	-0.3112	0.226	0.0306
0.45	114	-0.1294	0.2642	0.0301
0.45	270	0.044	0.2476	0.03
0.55	54	-0.3663	0.2461	0.0309
0.55	102	-0.1291	0.2596	0.0301
0.55	114	0.1697	0.2209	0.0302
0.55	126	0.1548	0.2101	0.0302
0.55	138	-0.0629	0.2618	0.03
0.55	186	0.2765	0.2515	0.0305
0.55	198	-0.1286	0.2661	0.0301
0.55	210	-0.0456	0.2688	0.03
0.55	222	0.161	0.2513	0.0302
0.55	270	0.0911	0.2526	0.0301
0.65	54	0.3853	0.2092	0.031
0.65	114	-0.0677	0.1898	0.03
0.65	126	-0.0233	0.2181	0.03
0.65	138	0.0146	0.2356	0.03
0.65	150	-0.279	0.2647	0.0305
0.65	198	0.0834	0.216	0.03
0.65	210	-0.1769	0.2176	0.0302
0.65	222	0.2371	0.2096	0.0304
0.65	270	0.3614	0.2483	0.0309
0.65	282	-0.4799	0.2015	0.0315
0.65	294	0.0343	0.231	0.03
0.75	90	0.0138	0.243	0.03
0.75	102	-0.0026	0.2218	0.03
0.75	114	-0.1405	0.2297	0.0301
0.75	126	-0.3268	0.2547	0.0307
0.75	138	-0.1742	0.2639	0.0302
0.75	150	-0.4844	0.1953	0.0315
0.75	174	-0.068	0.2646	0.03
0.75	198	-0.0841	0.2192	0.03
0.75	210	-0.2609	0.2116	0.0305
0.75	222	0.1349	0.2214	0.0301
0.75	234	-0.1229	0.2024	0.0301
0.75	246	-0.1257	0.2638	0.0301
0.75	258	-0.3085	0.2607	0.0306
0.75	270	0.3313	0.1943	0.0307
0.75	282	0.1504	0.192	0.0302
0.75	294	0.3176	0.2174	0.0307
0.85	78	0.1897	0.2553	0.0302
0.85	90	-0.0061	0.1689	0.03
0.85	102	-0.0362	0.171	0.03
0.85	114	-0.1412	0.1714	0.0301
0.85	126	-0.085	0.1954	0.03
0.85	138	0.4491	0.1999	0.0313
0.85	162	-0.1703	0.2417	0.0302
0.85	174	0.1555	0.1953	0.0302
0.85	186	0.1931	0.1735	0.0302
0.85	198	-0.258	0.1695	0.0304
0.85	210	0.0004	0.1696	0.03
0.85	222	-0.2006	0.1689	0.0303
0.85	234	0.0464	0.1943	0.03
0.85	246	0.0329	0.2259	0.03
0.85	258	-0.3372	0.2551	0.0307
0.85	270	-0.2952	0.2637	0.0306
0.95	102	-0.2772	0.2261	0.0305
0.95	186	-0.3745	0.2165	0.0309
0.95	198	-0.2884	0.2179	0.0305
0.95	210	-0.1089	0.1792	0.0301
0.95	222	-0.2695	0.1917	0.0305
0.95	234	-0.0829	0.221	0.03
0.95	246	-0.3698	0.221	0.0309