CLAS Physics Database

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Measurement E151M2794

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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 :	0.0171 GeV²
W :	1445 GeV
ε :	0.8048
E_beam :	1.3383 GeV
ε_L:	0.0324

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
0.35	30	0.0681	0.2673	0.03
0.35	42	0.0522	0.2402	0.03
0.45	18	-0.0143	0.2343	0.03
0.45	30	-0.0593	0.2176	0.03
0.45	42	-0.1372	0.2134	0.0301
0.45	54	0.0483	0.2646	0.03
0.45	222	0.128	0.2725	0.0301
0.45	234	-0.1063	0.2635	0.0301
0.55	18	-0.0625	0.2591	0.03
0.55	30	-0.1631	0.2533	0.0302
0.55	42	-0.3318	0.1831	0.0307
0.55	126	-0.3763	0.2184	0.0309
0.55	138	-0.2743	0.2035	0.0305
0.55	150	0.0048	0.2253	0.03
0.55	198	0.1628	0.2625	0.0302
0.55	210	-0.2181	0.2151	0.0303
0.55	222	-0.0896	0.2415	0.0301
0.55	234	-0.1407	0.1873	0.0301
0.55	246	0.06	0.2091	0.03
0.65	42	0.1679	0.262	0.0302
0.65	126	-0.3681	0.2014	0.0309
0.65	138	-0.0232	0.2155	0.03
0.65	150	-0.1211	0.2038	0.0301
0.65	162	0.0179	0.2585	0.03
0.65	198	0.0285	0.2869	0.03
0.65	210	-0.1137	0.1904	0.0301
0.65	222	-0.3657	0.1699	0.0309
0.65	234	-0.203	0.1608	0.0303
0.65	246	0.1344	0.1706	0.0301
0.75	126	-0.0921	0.2801	0.0301
0.75	138	-0.1075	0.1954	0.0301
0.75	150	0.1877	0.2132	0.0302
0.75	162	0.1009	0.2387	0.0301
0.75	210	-0.1847	0.2307	0.0302
0.75	222	-0.154	0.1912	0.0302
0.75	234	0.0308	0.1734	0.03
0.75	246	-0.1612	0.1948	0.0302
0.85	114	-0.0237	0.2687	0.03
0.85	126	0.172	0.2367	0.0302
0.85	138	-0.2769	0.2812	0.0305
0.85	210	0.2255	0.2283	0.0303
0.85	222	-0.1396	0.1884	0.0301
0.85	234	-0.1749	0.1858	0.0302
0.85	246	-0.4045	0.1803	0.0311
0.85	258	-0.1363	0.2724	0.0301
0.95	234	0.2796	0.2419	0.0305
0.25	30	-0.109	0.3682	0.0301
0.25	42	0.1901	0.3687	0.0302
0.35	30	0.1579	0.3497	0.0302
0.35	42	-0.1112	0.3195	0.0301
0.45	18	0.125	0.3411	0.0301
0.45	30	-0.6168	0.2041	0.0324
0.45	42	-0.2552	0.3176	0.0304
0.45	54	-0.53	0.3727	0.0318
0.45	234	-0.406	0.3446	0.0311
0.55	18	0.2377	0.35	0.0304
0.55	30	-0.2431	0.2482	0.0304
0.55	42	0.0491	0.3323	0.03
0.55	138	-0.0828	0.3424	0.03
0.55	150	0.4451	0.3131	0.0313
0.55	210	0.3041	0.3265	0.0306
0.55	222	0.153	0.2906	0.0302
0.55	234	-0.1814	0.2645	0.0302
0.55	246	-0.2489	0.3009	0.0304
0.65	42	0.5239	0.2598	0.0318
0.65	126	-0.3106	0.2858	0.0306
0.65	138	0.5404	0.257	0.0319
0.65	150	-0.0593	0.2884	0.03
0.65	162	-0.0331	0.3967	0.03
0.65	198	0.288	0.3646	0.0305
0.65	210	0.109	0.2844	0.0301
0.65	222	0.2566	0.2409	0.0304
0.65	234	-0.3669	0.2706	0.0309
0.65	246	0.0419	0.262	0.03
0.75	126	0.4365	0.3101	0.0312
0.75	138	-0.1015	0.3961	0.0301
0.75	150	0.2024	0.324	0.0303
0.75	210	-0.0106	0.3078	0.03
0.75	222	-0.1305	0.2528	0.0301
0.75	234	-0.0736	0.2224	0.03
0.75	246	0.1711	0.2489	0.0302
0.75	258	0.3327	0.3817	0.0307
0.85	114	0.259	0.3422	0.0304
0.85	126	0.5791	0.3058	0.0322
0.85	210	-0.1025	0.3262	0.0301
0.85	222	0.3793	0.2834	0.0309
0.85	234	0.4472	0.1994	0.0313
0.85	246	-0.2234	0.2674	0.0303
0.85	258	-0.146	0.366	0.0301
0.95	234	-0.4846	0.338	0.0315