CLAS Physics Database

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Measurement E151M3452

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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 :	0.4155 GeV²
W :	1385 GeV
ε :	0.9283
E_beam :	2.999 GeV
ε_L:	0.6431

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	66	-0.0991	0.2797	0.0301
0.25	54	0.0988	0.2669	0.0301
0.45	78	0.2336	0.2384	0.0304
0.45	90	0.4497	0.2118	0.0313
0.55	78	-0.0723	0.2171	0.03
0.55	90	-0.2568	0.1899	0.0304
0.55	102	-0.1033	0.2499	0.0301
0.55	282	0.1028	0.2824	0.0301
0.65	66	-0.2107	0.2333	0.0303
0.65	78	-0.4118	0.1989	0.0311
0.65	90	-0.0045	0.1789	0.03
0.65	102	-0.4567	0.186	0.0314
0.65	114	0.2542	0.2545	0.0304
0.65	258	-0.096	0.249	0.0301
0.65	270	0.103	0.2146	0.0301
0.65	282	-0.3114	0.2194	0.0306
0.75	54	-0.3059	0.2048	0.0306
0.75	78	-0.1751	0.1872	0.0302
0.75	90	0.021	0.1956	0.03
0.75	102	-0.0581	0.1857	0.03
0.75	114	0.1341	0.2392	0.0301
0.75	126	-0.2536	0.2463	0.0304
0.75	234	0.3088	0.2098	0.0306
0.75	246	-0.2465	0.1969	0.0304
0.75	258	0.3273	0.1744	0.0307
0.75	270	-0.0668	0.1894	0.03
0.75	282	-0.5683	0.1925	0.0321
0.75	294	0.0367	0.1922	0.03
0.75	306	-0.2926	0.2801	0.0306
0.85	42	-0.0441	0.2394	0.03
0.85	54	-0.3122	0.2314	0.0306
0.85	66	-0.0986	0.2729	0.0301
0.85	78	0.0504	0.1997	0.03
0.85	90	0.3022	0.2493	0.0306
0.85	102	0.2283	0.1922	0.0303
0.85	114	0.152	0.2064	0.0302
0.85	126	-0.0622	0.2369	0.03
0.85	210	0.0624	0.2523	0.03
0.85	222	0.5273	0.2	0.0318
0.85	234	0.0446	0.2112	0.03
0.85	246	-0.1884	0.1757	0.0302
0.85	258	0.0177	0.1797	0.03
0.85	270	-0.339	0.1621	0.0308
0.85	282	0.2935	0.1759	0.0306
0.85	294	-0.2204	0.1645	0.0303
0.85	306	0.1399	0.1834	0.0301
0.85	318	0.1187	0.1998	0.0301
0.95	90	-0.4086	0.2515	0.0311
0.95	102	-0.0277	0.2384	0.03
0.95	114	-0.3368	0.2773	0.0307
0.95	198	0.2437	0.2532	0.0304
0.95	222	-0.3688	0.2665	0.0309
0.95	234	0.1887	0.2058	0.0302
0.95	246	0.1155	0.2566	0.0301
0.95	258	-0.3055	0.2421	0.0306
0.95	270	-0.0514	0.2312	0.03
0.95	282	-0.3801	0.1908	0.0309
0.95	294	-0.2272	0.243	0.0303
0.95	306	-0.2204	0.2056	0.0303
0.95	318	-0.0016	0.2219	0.03
0.95	342	-0.1989	0.2319	0.0303