CLAS Physics Database

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Measurement E151M3409

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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 :	0.4155 GeV²
W :	1265 GeV
ε :	0.9477
E_beam :	2.999 GeV
ε_L:	1.0758

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
0.05	66	-0.2726	0.2249	0.0305
0.15	66	0.1224	0.2103	0.0301
0.35	282	-0.2738	0.2471	0.0305
0.45	282	0.1256	0.265	0.0301
0.45	294	0.5681	0.2202	0.0321
0.55	78	0.2463	0.2352	0.0304
0.55	90	0.3495	0.2519	0.0308
0.55	270	-0.0146	0.229	0.03
0.55	282	0.0872	0.2218	0.0301
0.55	294	-0.1412	0.2024	0.0301
0.55	306	0.113	0.2361	0.0301
0.65	66	0.165	0.2154	0.0302
0.65	78	-0.1099	0.241	0.0301
0.65	90	0.2627	0.2073	0.0305
0.65	270	0.0084	0.2387	0.03
0.65	282	-0.3483	0.2149	0.0308
0.65	294	-0.3213	0.1976	0.0307
0.75	54	-0.1558	0.2749	0.0302
0.75	66	-0.1459	0.1988	0.0301
0.75	78	0.392	0.1593	0.031
0.75	90	0.1566	0.2148	0.0302
0.75	102	0.3532	0.2124	0.0308
0.75	258	-0.2092	0.2355	0.0303
0.75	270	-0.0433	0.1762	0.03
0.75	282	-0.0018	0.1924	0.03
0.75	294	0.0933	0.1811	0.0301
0.75	306	-0.1292	0.2082	0.0301
0.85	54	-0.0294	0.2305	0.03
0.85	66	0.1758	0.2116	0.0302
0.85	78	0.0788	0.2025	0.03
0.85	90	0.0794	0.1973	0.03
0.85	102	0.082	0.2145	0.03
0.85	114	-0.0852	0.2528	0.03
0.85	246	0.1839	0.2298	0.0302
0.85	258	-0.3364	0.1902	0.0307
0.85	270	0.0786	0.2214	0.03
0.85	282	-0.0687	0.1945	0.03
0.85	294	0.1116	0.1931	0.0301
0.85	306	-0.1585	0.2075	0.0302
0.85	318	-0.1135	0.2059	0.0301
0.95	54	0.2235	0.2823	0.0303
0.95	66	0.2512	0.2042	0.0304
0.95	78	-0.2787	0.286	0.0305
0.95	90	-0.1512	0.258	0.0302
0.95	114	0.3701	0.2198	0.0309
0.95	246	0.3138	0.2357	0.0306
0.95	258	-0.3662	0.2672	0.0309
0.95	270	-0.1471	0.2013	0.0301
0.95	282	0.241	0.2536	0.0304
0.95	294	-0.2736	0.2524	0.0305
0.95	318	0.0835	0.2781	0.03