CLAS Physics Database

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Measurement E151M3407

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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 :	0.2915 GeV²
W :	1265 GeV
ε :	0.9617
E_beam :	2.999 GeV
ε_L:	0.9653

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	0.1331	0.241	0.0301
0.15	54	-0.1911	0.2282	0.0302
0.15	66	0.1358	0.1695	0.0301
0.25	66	0.3172	0.172	0.0307
0.25	78	0.1693	0.27	0.0302
0.35	66	0.0697	0.2165	0.03
0.35	78	-0.3612	0.2528	0.0309
0.35	282	-0.1608	0.2372	0.0302
0.35	294	0.1379	0.2453	0.0301
0.45	282	0.1501	0.1917	0.0301
0.45	294	0.2858	0.2031	0.0305
0.55	78	-0.1457	0.2525	0.0301
0.55	90	-0.0523	0.2789	0.03
0.55	270	-0.157	0.2024	0.0302
0.55	282	0.0454	0.1828	0.03
0.55	294	-0.2239	0.1869	0.0303
0.55	306	-0.2455	0.2548	0.0304
0.65	66	0.1183	0.1968	0.0301
0.65	78	-0.0977	0.1758	0.0301
0.65	90	-0.0933	0.1553	0.0301
0.65	270	0	0.167	0.03
0.65	282	-0.1767	0.1471	0.0302
0.65	294	-0.3893	0.1373	0.031
0.65	306	-0.0891	0.2102	0.0301
0.75	54	0.0434	0.2737	0.03
0.75	66	0.168	0.1564	0.0302
0.75	78	0.031	0.1345	0.03
0.75	90	0.2632	0.153	0.0305
0.75	102	-0.001	0.179	0.03
0.75	258	0.0786	0.1692	0.03
0.75	270	-0.0263	0.1497	0.03
0.75	282	0.2419	0.1505	0.0304
0.75	294	-0.1649	0.1483	0.0302
0.75	306	-0.2251	0.1783	0.0303
0.85	54	0.194	0.1898	0.0302
0.85	66	0.0284	0.135	0.03
0.85	78	-0.3766	0.1313	0.0309
0.85	90	0.2208	0.1356	0.0303
0.85	102	0.0524	0.1548	0.03
0.85	114	0.0626	0.165	0.03
0.85	126	-0.5226	0.2235	0.0318
0.85	234	-0.3136	0.2581	0.0306
0.85	246	-0.1925	0.195	0.0302
0.85	258	0.098	0.1663	0.0301
0.85	270	-0.0027	0.1575	0.03
0.85	282	0.371	0.15	0.0309
0.85	294	-0.2543	0.1677	0.0304
0.85	306	-0.029	0.1537	0.03
0.85	318	-0.1083	0.1953	0.0301
0.95	42	-0.0359	0.2275	0.03
0.95	54	0.4411	0.1975	0.0313
0.95	66	0.0633	0.1821	0.03
0.95	78	0.3161	0.1755	0.0307
0.95	90	-0.3146	0.1847	0.0307
0.95	102	0.2477	0.1858	0.0304
0.95	114	0.3413	0.1816	0.0308
0.95	126	0.3778	0.1582	0.0309
0.95	138	0.0567	0.2463	0.03
0.95	234	0.0238	0.2646	0.03
0.95	246	-0.0548	0.2348	0.03
0.95	258	0.228	0.2011	0.0303
0.95	270	0.433	0.1845	0.0312
0.95	282	-0.0558	0.1821	0.03
0.95	294	0.2176	0.2139	0.0303
0.95	306	0.2607	0.2148	0.0304
0.95	318	-0.0413	0.2708	0.03