CLAS Physics Database

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Measurement E151M2684

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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 :	0.0415 GeV²
W :	1265 GeV
ε :	0.9231
E_beam :	1.3383 GeV
ε_L:	0.233

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
0.05	42	-0.1721	0.2103	0.0302
0.15	42	0.1693	0.1995	0.0306
0.15	54	0.032	0.2266	0.0301
0.25	30	-0.2997	0.1961	0.0306
0.25	42	0.0485	0.2633	0.03
0.25	54	-0.3742	0.1844	0.0317
0.45	282	-0.2167	0.2674	0.0303
0.55	258	0.2023	0.1655	0.0303
0.55	270	0.0165	0.1762	0.03
0.55	282	0.5321	0.2262	0.0318
0.65	234	-0.1738	0.2458	0.0302
0.65	246	-0.0637	0.1629	0.03
0.65	258	0.1965	0.1414	0.0303
0.65	270	-0.0522	0.1484	0.03
0.65	282	-0.2216	0.2081	0.0303
0.75	126	-0.037	0.2133	0.03
0.75	138	0.0846	0.2139	0.03
0.75	150	0.0935	0.2281	0.0301
0.75	162	0.4836	0.2294	0.0315
0.75	222	0.0938	0.251	0.0301
0.75	234	0.2584	0.1656	0.0304
0.75	246	-0.2813	0.1476	0.0305
0.75	258	-0.2652	0.1314	0.0305
0.75	270	-0.1885	0.1555	0.0302
0.75	282	0.015	0.1715	0.03
0.85	114	0.222	0.2664	0.0303
0.85	126	0.0898	0.1661	0.0301
0.85	138	0.0231	0.1672	0.03
0.85	150	0.3596	0.1705	0.0309
0.85	162	-0.0745	0.207	0.03
0.85	174	0.2409	0.1965	0.0304
0.85	186	-0.3179	0.2158	0.0307
0.85	198	0.3663	0.247	0.0309
0.85	210	-0.2164	0.2614	0.0303
0.85	222	-0.369	0.2317	0.0309
0.85	234	-0.0538	0.1724	0.03
0.85	246	0.012	0.149	0.03
0.85	258	0.0412	0.1359	0.03
0.85	270	0.0455	0.1423	0.03
0.85	282	-0.0767	0.2124	0.03
0.95	126	0.3974	0.2472	0.031
0.95	138	0.447	0.2565	0.0313
0.95	150	0.4847	0.2404	0.0315
0.95	162	0.6783	0.2038	0.0329
0.95	246	-0.0268	0.2226	0.03
0.95	258	0.1385	0.2486	0.0301
0.35	30	0.361	0.3142	0.0309
0.35	42	-0.0356	0.287	0.03
0.45	270	0.2649	0.3548	0.0305
0.55	246	0.0787	0.3293	0.03
0.55	258	0.122	0.2585	0.0301
0.55	270	0.0058	0.2497	0.03
0.55	282	-0.3269	0.3021	0.0307
0.65	234	0.2721	0.3029	0.0305
0.65	246	0.0353	0.2397	0.03
0.65	258	0.0151	0.2353	0.03
0.65	270	-0.0944	0.2323	0.0301
0.65	282	0.9101	0.1137	0.0351
0.75	114	0.153	0.361	0.0302
0.75	126	-0.3073	0.2954	0.0306
0.75	138	0.5463	0.2271	0.0319
0.75	150	0.4066	0.2168	0.0311
0.75	162	-0.3625	0.2745	0.0309
0.75	222	0.733	0.2089	0.0334
0.75	234	0.1428	0.2627	0.0301
0.75	246	-0.2111	0.1975	0.0303
0.75	258	-0.0553	0.2056	0.03
0.75	270	-0.2294	0.2057	0.0303
0.75	282	-0.4452	0.2545	0.0313
0.85	114	-0.2379	0.3051	0.0304
0.85	126	-0.0735	0.2606	0.03
0.85	138	0.2306	0.2663	0.0304
0.85	150	0.1336	0.2438	0.0301
0.85	162	0.2529	0.2435	0.0304
0.85	174	0.1356	0.2216	0.0301
0.85	186	-0.5307	0.3045	0.0318
0.85	222	-0.0541	0.3892	0.03
0.85	234	-0.148	0.3045	0.0301
0.85	246	0.3686	0.1941	0.0309
0.85	258	-0.0534	0.2112	0.03
0.85	270	0.0349	0.2223	0.03
0.85	282	-0.1448	0.2778	0.0301
0.95	126	0.1729	0.3629	0.0302
0.95	138	0.903	0.1473	0.035
0.95	150	0.2885	0.3225	0.0306
0.95	162	0.1175	0.3822	0.0301
0.95	174	-0.0624	0.4241	0.03
0.95	186	0.4415	0.2753	0.0313
0.95	198	0.1226	0.3891	0.0301
0.95	222	-0.6152	0.2631	0.0324
0.95	258	-0.27	0.3132	0.0305