CLAS Physics Database

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Measurement E151M2757

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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 :	0.0205 GeV²
W :	1385 GeV
ε :	0.859
E_beam :	1.3383 GeV
ε_L:	0.0554

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	30	-0.1386	0.2744	0.0301
0.25	42	-0.6381	0.1318	0.0331
0.35	30	-0.4154	0.2591	0.0311
0.35	42	0.06	0.1787	0.0302
0.45	30	0.1791	0.2187	0.0302
0.45	42	0.148	0.247	0.0301
0.55	18	-0.1994	0.2239	0.0303
0.55	30	-0.2284	0.2122	0.0303
0.55	42	0.171	0.2098	0.0302
0.55	126	-0.3088	0.2351	0.0306
0.55	138	0.03	0.2412	0.03
0.55	150	-0.0424	0.2825	0.03
0.55	210	0.1255	0.2518	0.0301
0.55	222	-0.2584	0.2206	0.0304
0.55	234	0.4162	0.2045	0.0311
0.55	246	-0.124	0.2213	0.0301
0.55	258	0.2431	0.2148	0.0304
0.65	126	0.148	0.2028	0.0301
0.65	138	0.2876	0.1808	0.0305
0.65	150	-0.0935	0.1938	0.0301
0.65	162	-0.1977	0.2293	0.0303
0.65	210	-0.1151	0.2014	0.0301
0.65	222	0.0785	0.1849	0.03
0.65	234	0.0158	0.1524	0.03
0.65	246	0.0274	0.1613	0.03
0.65	258	-0.0527	0.2105	0.03
0.75	126	0.0763	0.1935	0.03
0.75	138	-0.0483	0.1996	0.03
0.75	150	0.1558	0.2281	0.0302
0.75	162	-0.5285	0.1937	0.0318
0.75	210	-0.1213	0.2493	0.0301
0.75	222	-0.0285	0.1711	0.03
0.75	234	-0.0097	0.1502	0.03
0.75	246	-0.1367	0.1615	0.0301
0.75	258	-0.0297	0.2324	0.03
0.85	114	-0.1322	0.2757	0.0301
0.85	126	0.1134	0.2223	0.0301
0.85	138	-0.225	0.2369	0.0303
0.85	150	0.1239	0.277	0.0301
0.85	210	0.0956	0.2177	0.0301
0.85	222	0.0158	0.1845	0.03
0.85	234	0.1113	0.1451	0.0301
0.85	246	-0.1686	0.1724	0.0302
0.85	258	0.2794	0.1961	0.0305
0.95	234	-0.2619	0.2204	0.0305
0.95	246	0.1408	0.2612	0.0301
0.35	54	0.64	0.2693	0.0326
0.45	18	-0.145	0.3376	0.0301
0.45	30	0.5266	0.2551	0.0318
0.45	42	0.4095	0.3031	0.0311
0.45	54	-0.5028	0.2756	0.0316
0.55	30	0.2861	0.2707	0.0305
0.55	42	0.0299	0.2845	0.03
0.55	126	-0.3736	0.3188	0.0309
0.55	138	0.4148	0.3121	0.0311
0.55	150	-0.0755	0.3634	0.03
0.55	222	-0.1039	0.3084	0.0301
0.55	234	0.3079	0.2736	0.0306
0.55	246	-0.4629	0.218	0.0314
0.55	258	0.0697	0.3822	0.03
0.65	126	0.3007	0.2764	0.0306
0.65	138	0.6164	0.2505	0.0324
0.65	150	-0.3092	0.2755	0.0306
0.65	162	0.0499	0.3594	0.03
0.65	210	0.1026	0.3117	0.0301
0.65	222	-0.1726	0.2434	0.0302
0.65	234	-0.0122	0.258	0.03
0.65	246	-0.0299	0.247	0.03
0.65	258	0.4233	0.2831	0.0312
0.75	114	-0.5941	0.2403	0.0323
0.75	126	0.1549	0.2903	0.0302
0.75	138	-0.3619	0.2634	0.0309
0.75	150	0.1686	0.2625	0.0302
0.75	210	0.3865	0.2769	0.031
0.75	222	0.1329	0.2533	0.0301
0.75	234	-0.3942	0.2138	0.031
0.75	246	-0.1764	0.23	0.0302
0.75	258	-0.4848	0.2282	0.0315
0.85	114	0.4164	0.3	0.0311
0.85	126	0.4182	0.3255	0.0311
0.85	138	0.2744	0.3515	0.0305
0.85	150	0.1059	0.3872	0.0301
0.85	210	-0.5443	0.3002	0.0319
0.85	222	0.11	0.255	0.0301
0.85	234	0.0367	0.242	0.03
0.85	246	-0.0551	0.2511	0.03
0.85	258	-0.4217	0.2824	0.0312
0.95	126	-0.3998	0.3182	0.031