CLAS Physics Database

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Measurement E151M3316

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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 :	0.0496 GeV²
W :	1565 GeV
ε :	0.888
E_beam :	2.2596 GeV
ε_L:	0.0592

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
0.35	66	0.2174	0.231	0.0303
0.35	78	-0.0935	0.1743	0.0306
0.35	90	0.4712	0.2344	0.0314
0.35	258	-0.8649	0.1659	0.0346
0.35	270	0.1951	0.2338	0.0303
0.35	282	-0.2853	0.1619	0.0305
0.45	66	-0.5301	0.2198	0.0318
0.45	78	-0.287	0.1383	0.0311
0.45	126	0.2286	0.2108	0.0303
0.45	258	-0.3387	0.2364	0.0308
0.45	270	0.0829	0.1492	0.0301
0.45	282	0.46	0.1392	0.0315
0.55	78	-0.3003	0.2401	0.0306
0.55	90	0.098	0.2266	0.0301
0.55	114	0.0439	0.1648	0.0301
0.55	126	-0.3053	0.1529	0.0308
0.55	138	-0.084	0.1561	0.0302
0.55	210	0.4496	0.2406	0.0313
0.55	222	0.3624	0.2494	0.0309
0.55	234	0.0414	0.2386	0.03
0.55	246	-0.1753	0.223	0.0302
0.55	258	0.0039	0.1503	0.0304
0.55	270	0.0978	0.1411	0.0301
0.55	282	-0.0237	0.1667	0.03
0.65	78	0.2616	0.2503	0.0305
0.65	114	-0.0411	0.1359	0.0302
0.65	126	0.1768	0.1489	0.0302
0.65	138	0.0514	0.1551	0.03
0.65	198	0.1491	0.158	0.0304
0.65	210	-0.0776	0.1503	0.03
0.65	222	-0.0425	0.1502	0.03
0.65	234	-0.2462	0.1591	0.0304
0.65	246	-0.1125	0.1724	0.0309
0.65	258	-0.2962	0.2408	0.0306
0.65	282	-0.1545	0.2561	0.0302
0.75	114	0.401	0.2408	0.0311
0.75	126	-0.1585	0.2341	0.0302
0.75	138	-0.2518	0.2335	0.0304
0.75	198	-0.1677	0.2334	0.0302
0.75	222	0.119	0.2038	0.0301
0.75	234	0.2082	0.2192	0.0303
0.75	246	-0.1991	0.2549	0.0303
0.75	270	0.1224	0.2018	0.0301
0.75	282	-0.026	0.1988	0.03
0.75	294	-0.0314	0.2498	0.03
0.85	102	0.091	0.2379	0.0301
0.85	114	0.2921	0.1984	0.0306
0.85	126	-0.0451	0.2256	0.03
0.85	198	0.2149	0.2139	0.0303
0.85	210	0.0197	0.214	0.03
0.85	222	-0.1928	0.1945	0.0302
0.85	234	0.4872	0.22	0.0315
0.85	246	0.299	0.2176	0.0306
0.85	270	-0.312	0.2402	0.0306
0.95	222	0.5649	0.2204	0.0321
0.65	294	0.0553	0.2554	0.03
0.75	66	0.0582	0.2393	0.03
0.75	126	0.1212	0.209	0.0301
0.75	138	-0.2149	0.1965	0.0303
0.75	150	-0.1774	0.2571	0.0302
0.75	198	0.1964	0.2404	0.0303
0.75	210	-0.2527	0.2033	0.0304
0.75	222	-0.2385	0.1679	0.0304
0.75	234	-0.3234	0.2151	0.0307
0.75	282	-0.1066	0.1665	0.0301
0.75	294	0.1731	0.2302	0.0302
0.85	102	0.1863	0.2007	0.0302
0.85	114	0.0824	0.2097	0.03
0.85	126	-0.1248	0.2632	0.0301
0.85	210	-0.1278	0.1844	0.0301
0.85	222	0.1533	0.1843	0.0302
0.85	234	0.1815	0.2219	0.0302
0.85	246	0.2048	0.2373	0.0303
0.95	234	-0.0193	0.2541	0.03