CLAS Physics Database

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Measurement E151M2690

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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 :	0.1205 GeV²
W :	1265 GeV
ε :	0.8786
E_beam :	1.3383 GeV
ε_L:	0.528

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
0.45	270	-0.1725	0.2301	0.0302
0.45	282	0.1555	0.1846	0.0302
0.55	270	-0.248	0.1484	0.0308
0.55	282	0.1775	0.153	0.0302
0.55	294	-0.0746	0.2056	0.0301
0.65	258	-0.2749	0.1558	0.0311
0.65	270	0.1331	0.1542	0.0301
0.65	282	0.0127	0.1782	0.03
0.65	294	0.2504	0.1897	0.0307
0.75	126	0.1408	0.2567	0.0301
0.75	234	-0.5272	0.2837	0.0318
0.75	246	0.0973	0.1955	0.0301
0.75	258	0.0285	0.1589	0.0301
0.75	270	-0.0496	0.1518	0.0301
0.75	282	0.109	0.142	0.0304
0.75	294	-0.1966	0.1504	0.0303
0.85	90	-0.4501	0.2116	0.0313
0.85	102	0.3044	0.1523	0.0309
0.85	114	0.0954	0.1678	0.0301
0.85	126	0.3135	0.1485	0.0307
0.85	138	0.1013	0.1546	0.0309
0.85	150	0.1175	0.1831	0.0301
0.85	162	-0.0645	0.1959	0.0308
0.85	246	-0.1028	0.1651	0.0301
0.85	258	-0.2784	0.1514	0.0311
0.85	270	-0.1927	0.151	0.0304
0.85	282	-0.148	0.1531	0.0302
0.85	294	-0.2821	0.1767	0.0306
0.95	66	0.008	0.2458	0.03
0.95	78	-0.1436	0.2528	0.0301
0.95	102	-0.178	0.2045	0.0302
0.95	114	-0.0063	0.166	0.0304
0.95	126	-0.2152	0.148	0.0313
0.95	138	-0.2478	0.1855	0.0306
0.95	150	0.0372	0.1762	0.0301
0.95	162	0.0897	0.1785	0.0304
0.95	174	-0.0847	0.1913	0.0301
0.95	186	0.537	0.2198	0.0319
0.95	198	-0.2984	0.1819	0.0309
0.95	210	-0.6236	0.2657	0.0325
0.95	246	-0.2451	0.2697	0.0304
0.95	270	0.0318	0.2025	0.0304
0.95	294	-0.522	0.2415	0.0318