CLAS Physics Database

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Measurement E151M2961

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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 :	0.0415 GeV²
W :	1325 GeV
ε :	0.955
E_beam :	1.9889 GeV
ε_L:	0.1663

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	306	0.0331	0.2816	0.03
0.25	294	-0.1686	0.2237	0.0302
0.25	306	-0.2423	0.1901	0.0304
0.25	318	0.2278	0.2803	0.0303
0.35	66	0.1032	0.1881	0.0301
0.35	78	-0.0686	0.1808	0.03
0.35	90	0.31	0.2686	0.0306
0.35	282	-0.1236	0.2226	0.0301
0.35	294	-0.1829	0.1537	0.0302
0.35	306	0.2878	0.1687	0.0305
0.45	66	0.4052	0.1464	0.0311
0.45	78	0.1281	0.1318	0.0301
0.45	90	-0.0299	0.1759	0.03
0.45	282	-0.318	0.1717	0.0307
0.45	294	0.0049	0.1589	0.03
0.45	306	-0.1785	0.2087	0.0302
0.55	66	-0.0582	0.203	0.03
0.55	78	-0.1507	0.1318	0.0302
0.55	90	-0.0632	0.1506	0.03
0.55	102	0.2634	0.2103	0.0305
0.55	246	0.4152	0.2078	0.0311
0.55	258	0.0542	0.2297	0.03
0.55	270	-0.1966	0.2006	0.0303
0.55	282	0.0117	0.1795	0.03
0.55	294	0.0645	0.2002	0.03
0.65	66	-0.0213	0.2613	0.03
0.65	78	-0.0066	0.1595	0.03
0.65	90	-0.1181	0.2087	0.0301
0.65	102	-0.014	0.2108	0.03
0.65	114	-0.3095	0.1693	0.0306
0.65	126	0.1522	0.1902	0.0302
0.65	138	0.0984	0.2125	0.0301
0.65	222	-0.0878	0.2347	0.0301
0.65	234	-0.1393	0.2026	0.0301
0.65	246	-0.112	0.1581	0.0301
0.65	258	-0.3335	0.1496	0.0307
0.65	270	0.2746	0.173	0.0305
0.65	282	0.2071	0.2336	0.0303
0.75	90	-0.2201	0.2418	0.0303
0.75	102	0.0705	0.1719	0.03
0.75	114	0.0449	0.143	0.03
0.75	126	0.1629	0.1594	0.0302
0.75	138	0.2374	0.1497	0.0304
0.75	150	-0.0016	0.191	0.03
0.75	162	0.0641	0.2565	0.03
0.75	210	-0.1116	0.2445	0.0301
0.75	222	0.0179	0.1634	0.03
0.75	234	-0.0613	0.1438	0.03
0.75	246	-0.2202	0.1244	0.0303
0.75	258	-0.0111	0.1602	0.03
0.75	270	-0.2624	0.162	0.0305
0.85	114	0.0461	0.1613	0.03
0.85	126	0.1389	0.1543	0.0301
0.85	138	0.0925	0.1366	0.0301
0.85	150	-0.1062	0.186	0.0301
0.85	162	-0.1236	0.1976	0.0301
0.85	174	0.4628	0.2596	0.0314
0.85	198	0.0609	0.2611	0.03
0.85	210	-0.0391	0.1918	0.03
0.85	222	-0.0984	0.1511	0.0301
0.85	234	0.172	0.1508	0.0302
0.85	246	-0.0202	0.1305	0.03
0.85	258	0.0585	0.1442	0.03
0.85	270	0.2043	0.1719	0.0303
0.95	138	0.5515	0.2078	0.032
0.95	198	-0.2116	0.2882	0.0303
0.95	210	-0.2179	0.2454	0.0303
0.95	222	-0.19	0.2214	0.0302
0.95	234	0.2311	0.2032	0.0304