CLAS Physics Database

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Measurement E151M3487

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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 :	1475 GeV
ε :	0.9081
E_beam :	2.999 GeV
ε_L:	0.454

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	54	-0.3065	0.25	0.0306
0.05	66	-0.165	0.2695	0.0302
0.15	66	-0.2623	0.2402	0.0305
0.15	294	0.5523	0.2097	0.032
0.15	306	-0.1803	0.2498	0.0302
0.25	66	-0.0112	0.2543	0.03
0.25	282	0.614	0.1866	0.0324
0.35	282	0.094	0.2506	0.0301
0.35	294	0.167	0.2373	0.0302
0.45	78	-0.1281	0.2713	0.0301
0.45	90	-0.0501	0.2269	0.03
0.45	102	-0.5713	0.2035	0.0321
0.45	282	-0.2156	0.2542	0.0303
0.55	78	-0.0723	0.2191	0.03
0.55	90	0.0995	0.2005	0.0301
0.55	102	0.0332	0.2349	0.03
0.55	246	-0.2451	0.259	0.0304
0.55	258	0.1284	0.2569	0.0301
0.65	54	0.1027	0.2689	0.0301
0.65	78	-0.1003	0.218	0.0301
0.65	90	0.1962	0.1819	0.0303
0.65	102	-0.2063	0.1939	0.0303
0.65	114	-0.0687	0.214	0.03
0.65	126	-0.347	0.2451	0.0308
0.65	234	0.0461	0.2709	0.03
0.65	246	0.3853	0.2582	0.031
0.65	258	-0.0711	0.2137	0.03
0.75	54	0.0562	0.2163	0.03
0.75	66	-0.0222	0.2694	0.03
0.75	78	-0.1026	0.2076	0.0301
0.75	90	-0.1199	0.1957	0.0301
0.75	102	-0.0322	0.1793	0.03
0.75	114	-0.2052	0.2008	0.0303
0.75	126	0.2851	0.2519	0.0305
0.75	222	0.4552	0.2413	0.0314
0.75	234	0.073	0.2273	0.03
0.75	246	0.1442	0.1694	0.0301
0.75	258	-0.0077	0.2039	0.03
0.75	270	0.025	0.2095	0.03
0.75	282	-0.2569	0.2298	0.0304
0.85	54	0.2405	0.2165	0.0304
0.85	66	0.1502	0.2158	0.0301
0.85	90	0.1317	0.1964	0.0301
0.85	102	0.2397	0.1951	0.0304
0.85	114	-0.1333	0.2198	0.0301
0.85	126	0.0603	0.2353	0.03
0.85	210	-0.4458	0.1818	0.0313
0.85	222	-0.0117	0.2342	0.03
0.85	234	-0.0225	0.2061	0.03
0.85	246	-0.2408	0.175	0.0304
0.85	258	-0.1021	0.1769	0.0301
0.85	270	-0.1624	0.164	0.0302
0.85	282	-0.3007	0.1802	0.0306
0.85	294	0.024	0.1932	0.03
0.85	306	-0.1717	0.2078	0.0302
0.85	318	-0.2148	0.2497	0.0303
0.95	90	0.0586	0.2694	0.03
0.95	198	-0.0606	0.264	0.03
0.95	222	-0.2462	0.2376	0.0304
0.95	234	0.0336	0.2375	0.03
0.95	246	0.2456	0.2286	0.0304
0.95	258	0.17	0.2049	0.0302
0.95	270	-0.2514	0.2447	0.0304
0.95	282	-0.343	0.2	0.0308
0.95	294	-0.4576	0.1832	0.0314
0.95	306	-0.0327	0.2014	0.03
0.95	318	-0.3195	0.204	0.0307
0.95	330	-0.1248	0.1928	0.0301