CLAS Physics Database

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Measurement E151M2687

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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 :	0.0707 GeV²
W :	1265 GeV
ε :	0.9069
E_beam :	1.3383 GeV
ε_L:	0.3616

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	0.1432	0.2999	0.0301
0.45	270	-0.339	0.2422	0.0308
0.45	282	-0.3532	0.2496	0.0308
0.55	258	0.0877	0.2034	0.0301
0.55	270	0.3348	0.1789	0.0307
0.55	282	-0.0505	0.2269	0.03
0.65	246	-0.3602	0.1908	0.0309
0.65	258	-0.3307	0.1587	0.0307
0.65	270	0.3279	0.1596	0.0307
0.65	282	-0.2342	0.1684	0.0304
0.75	114	-0.047	0.2508	0.03
0.75	126	0.1928	0.2438	0.0302
0.75	138	0.0883	0.2593	0.0301
0.75	234	0.5242	0.1958	0.0318
0.75	246	0.1524	0.204	0.0302
0.75	258	-0.1256	0.1726	0.0301
0.75	270	0.0542	0.1844	0.03
0.75	282	0.2252	0.1655	0.0303
0.75	294	-0.4524	0.2195	0.0313
0.85	114	0.188	0.1956	0.0302
0.85	126	-0.0016	0.1679	0.03
0.85	138	0.0759	0.1951	0.03
0.85	150	0.1271	0.2034	0.0301
0.85	162	-0.104	0.213	0.0301
0.85	174	0.1462	0.2323	0.0301
0.85	186	0.204	0.2797	0.0303
0.85	222	0.1496	0.2617	0.0301
0.85	234	-0.011	0.2549	0.03
0.85	246	-0.1609	0.1843	0.0302
0.85	258	-0.3302	0.1805	0.0307
0.85	270	0.0465	0.1723	0.03
0.85	282	-0.0896	0.2015	0.0301
0.85	294	-0.2433	0.2711	0.0304
0.95	90	-0.2832	0.2509	0.0305
0.95	126	0.0363	0.2559	0.03
0.95	138	0.2847	0.2169	0.0305
0.95	150	0.2638	0.2068	0.0305
0.95	162	-0.0568	0.2031	0.03
0.95	174	-0.0446	0.2315	0.03
0.95	186	-0.0831	0.2077	0.03
0.95	234	-0.05	0.2546	0.03
0.95	246	-0.0346	0.2352	0.03
0.95	258	-0.5375	0.2187	0.0319
0.95	270	-0.0022	0.2575	0.03
0.15	30	0.5052	0.2833	0.0317
0.25	42	0.0165	0.377	0.03
0.45	270	0.2748	0.3049	0.0305
0.45	282	0.0185	0.3562	0.03
0.55	258	-0.1144	0.3246	0.0301
0.55	270	-0.2705	0.2826	0.0305
0.55	282	-0.7003	0.2041	0.0331
0.65	246	0.3315	0.2305	0.0307
0.65	258	-0.1839	0.2521	0.0302
0.65	270	0.2048	0.2317	0.0303
0.65	282	0.5438	0.2019	0.0319
0.75	126	0.5811	0.2703	0.0322
0.75	138	0.3336	0.2693	0.0307
0.75	150	-0.138	0.3819	0.0301
0.75	234	-0.5795	0.2641	0.0322
0.75	246	0.1204	0.271	0.0301
0.75	258	-0.2582	0.2751	0.0304
0.75	270	-0.4931	0.2036	0.0316
0.75	282	-0.2622	0.277	0.0305
0.75	294	-0.5295	0.2554	0.0318
0.85	102	0.5868	0.3044	0.0322
0.85	114	-0.3452	0.2422	0.0308
0.85	126	0.3355	0.241	0.0307
0.85	138	0.1456	0.2556	0.0301
0.85	150	-0.0518	0.2635	0.03
0.85	162	0.7433	0.1521	0.0335
0.85	174	-0.4105	0.3153	0.0311
0.85	186	-0.1606	0.3824	0.0302
0.85	198	0.0151	0.3731	0.03
0.85	222	0.2135	0.3586	0.0303
0.85	234	-0.1046	0.4352	0.0301
0.85	246	-0.4826	0.2405	0.0315
0.85	258	0.0384	0.2362	0.03
0.85	270	-0.0799	0.2503	0.03
0.85	282	0.1794	0.2354	0.0302
0.85	294	-0.2315	0.3923	0.0304
0.95	102	0.434	0.3442	0.0312
0.95	126	0.3174	0.2938	0.0307
0.95	138	-0.1626	0.2729	0.0302
0.95	150	0.4406	0.2649	0.0313
0.95	162	0.3833	0.2832	0.031
0.95	174	-0.624	0.2498	0.0325
0.95	186	-0.1026	0.3682	0.0301
0.95	258	-0.1451	0.3684	0.0301