CLAS Physics Database

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Measurement E151M3267

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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 :	0.1435 GeV²
W :	1445 GeV
ε :	0.9123
E_beam :	2.2596 GeV
ε_L:	0.2526

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	66	0.1252	0.2623	0.0301
0.35	282	-0.0659	0.2523	0.03
0.35	294	0.3766	0.2183	0.0309
0.45	66	0.0288	0.2105	0.03
0.45	78	0.2481	0.2476	0.0304
0.45	282	0.3405	0.2505	0.0308
0.55	90	-0.7369	0.1899	0.0334
0.65	102	-0.0636	0.2253	0.03
0.65	114	-0.2695	0.1959	0.0305
0.65	246	0.0084	0.2437	0.03
0.75	90	-0.0666	0.2594	0.03
0.75	102	0.3567	0.1858	0.0308
0.75	114	-0.1246	0.1925	0.0301
0.75	126	0.1509	0.2023	0.0302
0.75	138	0.0517	0.2447	0.03
0.75	222	-0.0416	0.2258	0.03
0.75	234	0.3668	0.1968	0.0309
0.75	246	0.151	0.2376	0.0302
0.75	258	-0.0707	0.2305	0.03
0.75	270	-0.1597	0.2582	0.0302
0.85	78	-0.1239	0.2403	0.0301
0.85	90	0.2309	0.2565	0.0304
0.85	114	0.1181	0.1865	0.0301
0.85	126	0.0742	0.2364	0.03
0.85	222	0.0655	0.2539	0.03
0.85	234	-0.4242	0.2153	0.0312
0.85	246	-0.1328	0.2098	0.0301
0.85	258	-0.0369	0.224	0.03
0.85	270	0.4317	0.2241	0.0312
0.95	246	-0.0523	0.2271	0.03
0.95	258	0.0989	0.2467	0.0301
0.95	282	0.0045	0.2315	0.03
0.15	294	0.2884	0.2348	0.0305
0.25	66	0.3188	0.2378	0.0307
0.35	66	-0.4892	0.2116	0.0316
0.35	78	-0.2734	0.2512	0.0305
0.35	282	-0.2593	0.2485	0.0304
0.35	294	0.0533	0.2138	0.03
0.45	282	0.1581	0.2197	0.0302
0.55	114	-0.0795	0.2595	0.03
0.55	282	0.0616	0.2438	0.03
0.65	102	-0.1343	0.1834	0.0301
0.65	114	0.1831	0.2101	0.0302
0.65	126	0.1142	0.2303	0.0301
0.65	234	-0.1092	0.2455	0.0301
0.65	246	0.0443	0.2086	0.03
0.75	90	0.3798	0.2256	0.0309
0.75	102	0.4044	0.1653	0.0311
0.75	114	0.0609	0.2077	0.03
0.75	126	-0.1699	0.2112	0.0302
0.75	210	0.0325	0.2611	0.03
0.75	222	-0.3167	0.2375	0.0307
0.75	234	-0.1206	0.2084	0.0301
0.75	246	0.1501	0.211	0.0301
0.75	258	-0.0601	0.2269	0.03
0.75	270	-0.0091	0.2652	0.03
0.85	78	0.0014	0.2549	0.03
0.85	102	-0.0617	0.2237	0.03
0.85	114	-0.2612	0.2102	0.0305
0.85	126	0.3145	0.2217	0.0307
0.85	138	-0.01	0.2623	0.03
0.85	210	0.1819	0.2544	0.0302
0.85	222	-0.3508	0.2533	0.0308
0.85	234	0.1079	0.1826	0.0301
0.85	246	0.2839	0.1812	0.0305
0.85	258	-0.226	0.1665	0.0303
0.85	270	-0.3728	0.221	0.0309
0.95	222	-0.1465	0.2476	0.0301
0.95	246	0.0403	0.2305	0.03
0.95	258	-0.0765	0.2136	0.03
0.95	270	-0.067	0.2061	0.03
0.95	282	0.0726	0.2596	0.03