CLAS Physics Database

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Measurement E151M2667

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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 :	1235 GeV
ε :	0.9272
E_beam :	1.3383 GeV
ε_L:	0.3903

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	42	-0.0973	0.2461	0.0301
0.45	270	0.0698	0.2552	0.03
0.45	282	0.0637	0.2369	0.03
0.55	258	-0.2178	0.2559	0.0303
0.55	270	0.0873	0.174	0.0301
0.55	282	-0.1967	0.1677	0.0303
0.65	246	0.0764	0.2336	0.03
0.65	258	-0.136	0.1668	0.0301
0.65	270	-0.1608	0.1545	0.0302
0.65	282	0.1615	0.172	0.0302
0.65	294	-0.1122	0.2895	0.0301
0.75	234	-0.3817	0.2308	0.031
0.75	246	-0.1149	0.206	0.0301
0.75	258	-0.1717	0.1523	0.0302
0.75	270	-0.2674	0.1606	0.0305
0.75	282	-0.0538	0.2007	0.03
0.85	102	0.1013	0.2661	0.0301
0.85	114	0.2206	0.2654	0.0303
0.85	126	-0.174	0.1904	0.0302
0.85	138	0.2337	0.1781	0.0304
0.85	150	0.2156	0.1758	0.0303
0.85	162	-0.0422	0.2039	0.03
0.85	174	0.1759	0.2162	0.0302
0.85	186	0.2288	0.252	0.0303
0.85	198	-0.2512	0.2238	0.0304
0.85	210	0.2495	0.2395	0.0304
0.85	234	0.3027	0.2561	0.0306
0.85	246	0.1556	0.1894	0.0302
0.85	258	-0.1445	0.1914	0.0301
0.85	270	0.1665	0.176	0.0302
0.85	282	-0.1109	0.2027	0.0301
0.95	114	0.2619	0.2795	0.0305
0.95	126	0.4458	0.2618	0.0313
0.95	138	-0.0953	0.1995	0.0301
0.95	150	-0.0361	0.2344	0.03
0.95	162	-0.1414	0.2095	0.0301
0.95	174	0.3603	0.205	0.0309
0.95	198	-0.2254	0.2376	0.0303
0.05	42	0.0536	0.39	0.03
0.15	42	-0.4094	0.3265	0.0311
0.45	270	0.3451	0.3577	0.0308
0.45	282	-0.4841	0.3197	0.0315
0.55	258	-0.1278	0.4343	0.0301
0.55	270	0.0036	0.2384	0.03
0.55	282	-0.0024	0.2444	0.03
0.65	258	-0.5156	0.2373	0.0317
0.65	270	0	0.235	0.03
0.65	282	0.1414	0.2498	0.0301
0.65	294	-0.2334	0.3958	0.0304
0.75	234	-0.2712	0.4029	0.0305
0.75	246	0.2807	0.2566	0.0305
0.75	258	-0.1978	0.2215	0.0303
0.75	270	-0.2493	0.2111	0.0304
0.75	282	0.0697	0.2532	0.03
0.85	102	0.506	0.2816	0.0317
0.85	114	-0.1332	0.3142	0.0301
0.85	126	-0.4029	0.2663	0.0311
0.85	138	0.023	0.2428	0.03
0.85	150	0.138	0.3101	0.0301
0.85	162	-0.0094	0.3133	0.03
0.85	174	0.3636	0.2663	0.0309
0.85	186	-0.289	0.3493	0.0306
0.85	198	-0.2581	0.3852	0.0304
0.85	210	0.1053	0.3858	0.0301
0.85	234	-0.3203	0.3086	0.0307
0.85	246	0.2871	0.2401	0.0305
0.85	258	-0.2715	0.2738	0.0305
0.85	270	-0.0155	0.2895	0.03
0.85	282	0.3142	0.2818	0.0307
0.95	126	-0.004	0.3292	0.03
0.95	138	0.2167	0.2741	0.0303
0.95	150	-0.1861	0.3018	0.0302
0.95	162	0.282	0.2957	0.0305
0.95	174	0.2065	0.3604	0.0303
0.95	186	-0.0571	0.3148	0.03