CLAS Physics Database

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Measurement E151M3187

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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 :	0.101 GeV²
W :	1265 GeV
ε :	0.9655
E_beam :	2.2596 GeV
ε_L:	0.5095

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	0.2629	0.1514	0.0307
0.35	66	-0.2607	0.1173	0.031
0.35	78	-0.0074	0.1473	0.0301
0.45	66	-0.018	0.1358	0.03
0.45	78	0.1198	0.1212	0.0304
0.45	90	0.0103	0.1827	0.03
0.55	66	-0.0574	0.2556	0.03
0.55	78	-0.1863	0.2041	0.0302
0.55	270	-0.0994	0.2377	0.0301
0.55	282	0.3229	0.22	0.0307
0.65	78	-0.0185	0.2381	0.03
0.65	258	-0.1469	0.183	0.0301
0.65	270	0.1674	0.1622	0.0302
0.65	282	-0.1763	0.1777	0.0302
0.75	102	0.1191	0.2538	0.0301
0.75	114	-0.0293	0.212	0.03
0.75	126	0.1832	0.2633	0.0302
0.75	246	0.0643	0.1775	0.03
0.75	258	-0.2479	0.1615	0.0304
0.75	270	-0.3269	0.1478	0.0307
0.75	282	-0.1307	0.2172	0.0301
0.85	90	0.0884	0.2197	0.0301
0.85	102	0.1996	0.1735	0.0303
0.85	114	-0.0175	0.1606	0.03
0.85	126	0.305	0.2041	0.0306
0.85	138	0.0948	0.1881	0.0301
0.85	150	0.3689	0.202	0.0309
0.85	162	-0.0447	0.25	0.03
0.85	234	0.0273	0.2227	0.03
0.85	246	0.0119	0.2031	0.03
0.85	258	0.0485	0.1716	0.03
0.85	270	-0.0683	0.1591	0.03
0.85	282	-0.3516	0.2034	0.0308
0.95	102	0.4408	0.1915	0.0313
0.95	114	-0.0326	0.2245	0.03
0.95	126	-0.1146	0.1964	0.0301
0.95	138	0.0484	0.1843	0.03
0.95	150	0.0554	0.2276	0.03
0.95	162	0.2331	0.03
0.95	186	-0.1561	0.2595	0.0302
0.95	234	0.0212	0.2426	0.03
0.95	246	0.4464	0.2232	0.0313
0.95	270	-0.5015	0.2337	0.0316
0.45	270	-0.0361	0.2588	0.03
0.45	282	0.0708	0.2429	0.03
0.45	294	-0.1289	0.2248	0.0301
0.55	66	-0.2229	0.2158	0.0303
0.55	78	-0.1424	0.1688	0.0301
0.55	90	-0.2145	0.2408	0.0303
0.55	270	-0.3472	0.1932	0.0308
0.55	282	-0.1123	0.226	0.0301
0.65	258	0.1528	0.1781	0.0302
0.65	270	-0.4488	0.1468	0.0313
0.65	282	-0.0389	0.1655	0.03
0.75	90	0.3185	0.1851	0.0307
0.75	102	-0.3819	0.1664	0.031
0.75	114	-0.2104	0.1937	0.0303
0.75	126	-0.0831	0.2226	0.03
0.75	246	-0.0135	0.2093	0.03
0.75	258	-0.1843	0.14	0.0302
0.75	270	-0.0746	0.1476	0.03
0.75	282	0.0443	0.1613	0.03
0.85	90	0.2456	0.1712	0.0304
0.85	102	0.2255	0.154	0.0303
0.85	114	0.1081	0.1544	0.0301
0.85	126	-0.1179	0.1482	0.0301
0.85	138	-0.236	0.1625	0.0304
0.85	150	-0.0992	0.2213	0.0301
0.85	234	0.1744	0.2179	0.0302
0.85	246	0.2934	0.147	0.0306
0.85	258	-0.1023	0.1589	0.0301
0.85	270	0.142	0.1387	0.0301
0.85	282	0.1649	0.1893	0.0302
0.95	102	0.2198	0.2075	0.0303
0.95	114	0.2235	0.1813	0.0303
0.95	126	-0.0566	0.1744	0.03
0.95	138	-0.4574	0.1648	0.0314
0.95	150	0.2377	0.1764	0.0304
0.95	162	-0.1793	0.196	0.0302
0.95	174	0.3485	0.2289	0.0308
0.95	186	-0.3811	0.2233	0.031
0.95	198	0.0498	0.2506	0.03
0.95	234	-0.0634	0.2605	0.03
0.95	246	-0.1385	0.2201	0.0301
0.95	258	-0.0829	0.2197	0.03
0.95	270	0.4388	0.2243	0.0313