CLAS Physics Database

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Measurement E151M2968

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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 :	1325 GeV
ε :	0.9284
E_beam :	1.9889 GeV
ε_L:	0.4521

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
0.15	294	-0.2045	0.2498	0.0303
0.15	306	-0.3253	0.2643	0.0307
0.25	66	0.4437	0.2093	0.0313
0.25	78	0.1052	0.2752	0.0301
0.25	306	0.1276	0.2759	0.0301
0.35	66	0.0748	0.1836	0.03
0.35	78	-0.0896	0.2169	0.0301
0.35	294	0.158	0.2791	0.0302
0.35	306	0.0878	0.2834	0.0301
0.45	66	-0.0644	0.2213	0.03
0.45	78	-0.1903	0.2057	0.0302
0.45	294	-0.5272	0.2057	0.0318
0.55	66	-0.0387	0.2197	0.03
0.55	78	-0.2813	0.258	0.0305
0.55	270	-0.1416	0.2419	0.0301
0.65	90	-0.0718	0.2422	0.03
0.65	102	-0.3825	0.2457	0.031
0.65	114	-0.3959	0.2187	0.031
0.65	246	-0.1499	0.2742	0.0301
0.65	258	-0.291	0.186	0.0306
0.65	270	0.3421	0.1682	0.0308
0.65	282	0.2467	0.2452	0.0304
0.75	78	0.1765	0.274	0.0302
0.75	90	-0.2459	0.1838	0.0304
0.75	102	0.1596	0.1654	0.0302
0.75	114	-0.0261	0.1725	0.03
0.75	126	0.1049	0.2024	0.0301
0.75	138	0.2962	0.2682	0.0306
0.75	234	-0.3187	0.2129	0.0307
0.75	246	-0.0436	0.1882	0.03
0.75	258	-0.2157	0.1516	0.0303
0.75	270	-0.0606	0.16	0.03
0.75	282	-0.1071	0.2038	0.0301
0.75	294	-0.5062	0.2315	0.0317
0.85	90	0.1781	0.1615	0.0302
0.85	102	-0.0009	0.1595	0.03
0.85	114	-0.0396	0.1552	0.03
0.85	126	0.4046	0.1535	0.0311
0.85	138	-0.0681	0.1816	0.03
0.85	150	-0.2749	0.2028	0.0305
0.85	210	0.2043	0.252	0.0303
0.85	222	-0.095	0.2384	0.0301
0.85	234	-0.2272	0.165	0.0303
0.85	246	-0.0622	0.172	0.03
0.85	258	-0.2228	0.1693	0.0303
0.85	270	0.0139	0.1702	0.03
0.85	282	-0.1741	0.1918	0.0302
0.85	294	0.4048	0.2036	0.0311
0.95	102	-0.1797	0.2052	0.0302
0.95	114	-0.0588	0.1897	0.03
0.95	126	0.2339	0.1915	0.0304
0.95	138	-0.0957	0.2301	0.0301
0.95	150	0.1994	0.2408	0.0303
0.95	186	-0.0144	0.2648	0.03
0.95	222	-0.3026	0.2301	0.0306
0.95	234	-0.0075	0.2327	0.03
0.95	246	0.2868	0.2146	0.0305
0.95	258	-0.7483	0.1485	0.0335
0.95	270	-0.0302	0.2125	0.03
0.95	282	0.1977	0.1593	0.0303
0.95	294	-0.4024	0.2757	0.0311