CLAS Physics Database

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Measurement E151M2743

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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 :	0.0593 GeV²
W :	1355 GeV
ε :	0.8568
E_beam :	1.3383 GeV
ε_L:	0.1736

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
0.55	246	-0.3389	0.1689	0.0309
0.65	126	0.1276	0.2877	0.0301
0.65	222	-0.1059	0.2471	0.0301
0.65	234	0.0032	0.2228	0.03
0.65	246	-0.3132	0.1692	0.0306
0.65	258	-0.0384	0.1818	0.03
0.65	270	-0.2126	0.2786	0.0303
0.75	114	0.0516	0.1964	0.03
0.75	126	0.0236	0.213	0.03
0.75	138	0.2762	0.1742	0.0305
0.75	150	-0.0294	0.204	0.03
0.75	162	-0.4042	0.2418	0.0311
0.75	222	0.2322	0.2142	0.0304
0.75	234	0.0955	0.1795	0.0301
0.75	246	0.2245	0.1852	0.0303
0.75	258	-0.0816	0.1709	0.03
0.75	270	0.2601	0.1836	0.0304
0.85	114	0.234	0.2431	0.0304
0.85	126	0.2274	0.197	0.0303
0.85	138	0.0164	0.1973	0.03
0.85	150	-0.0696	0.2373	0.03
0.85	162	0.2138	0.2263	0.0303
0.85	174	-0.2569	0.2865	0.0304
0.85	210	-0.2547	0.2828	0.0304
0.85	222	0.1749	0.243	0.0302
0.85	234	-0.2731	0.1914	0.0305
0.85	246	-0.1766	0.1848	0.0302
0.85	258	-0.2763	0.149	0.0305
0.85	270	-0.1652	0.1665	0.0302
0.85	282	0.0688	0.198	0.03
0.95	114	-0.0504	0.2481	0.03
0.95	234	-0.3703	0.2168	0.0309
0.95	246	0.2476	0.2173	0.0304
0.95	258	0.1344	0.2827	0.0301
0.95	270	0.0835	0.2317	0.03
0.55	258	0.543	0.2672	0.0319
0.55	270	0.5139	0.3184	0.0317
0.65	126	-0.375	0.3024	0.0309
0.65	138	-0.0017	0.3496	0.03
0.65	234	0.0452	0.297	0.03
0.65	246	-0.2106	0.2221	0.0303
0.65	258	0.3036	0.2512	0.0306
0.65	270	0.2643	0.2942	0.0305
0.75	114	-0.0388	0.3744	0.03
0.75	126	-0.3241	0.253	0.0307
0.75	138	0.219	0.3187	0.0303
0.75	150	0.2622	0.3656	0.0305
0.75	222	0.333	0.291	0.0307
0.75	234	-0.478	0.2264	0.0315
0.75	246	0.4244	0.251	0.0312
0.75	258	-0.3152	0.2366	0.0307
0.75	270	0.2088	0.3122	0.0303
0.85	114	-0.4063	0.2923	0.0311
0.85	126	0.691	0.1585	0.033
0.85	138	0.0403	0.3085	0.03
0.85	150	0.0631	0.2822	0.03
0.85	222	-0.1738	0.3981	0.0302
0.85	234	0.3845	0.2407	0.031
0.85	246	0.2698	0.2216	0.0305
0.85	258	0.0561	0.2308	0.03
0.85	270	-0.0706	0.2663	0.03
0.85	282	0.1226	0.3642	0.0301
0.95	102	-0.4359	0.2797	0.0312
0.95	114	0.2665	0.2816	0.0305
0.95	222	-0.5801	0.2644	0.0322
0.95	234	-0.1587	0.3212	0.0302
0.95	246	0.456	0.314	0.0314
0.95	258	-0.2008	0.3283	0.0303
0.95	270	0.4274	0.3028	0.0312
0.95	282	-0.1284	0.373	0.0301