CLAS Physics Database

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Measurement E151M2799

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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 :	0.0415 GeV²
W :	1445 GeV
ε :	0.786
E_beam :	1.3383 GeV
ε_L:	0.0737

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
0.25	42	0.1851	0.2167	0.0303
0.35	30	0.0554	0.2826	0.03
0.35	42	-0.0803	0.2091	0.03
0.45	18	0.1217	0.2207	0.0301
0.45	30	0.007	0.2011	0.0301
0.45	42	0.5942	0.2536	0.0323
0.55	138	0.0949	0.3274	0.0301
0.55	222	-0.2863	0.2915	0.0305
0.55	234	-0.2713	0.3313	0.0305
0.55	246	0.4362	0.2174	0.0312
0.65	126	-0.5549	0.248	0.032
0.65	138	-0.2072	0.3041	0.0303
0.65	150	-0.0669	0.3623	0.03
0.65	162	0.89	0.1612	0.0349
0.65	210	-0.2211	0.327	0.0303
0.65	222	-0.0819	0.3135	0.03
0.65	234	-0.0649	0.2246	0.03
0.65	246	-0.2708	0.2647	0.0305
0.65	258	-0.1882	0.4087	0.0302
0.75	126	-0.5386	0.2104	0.0319
0.75	138	-0.0258	0.3151	0.03
0.75	150	0.1716	0.3752	0.0302
0.75	162	-0.1626	0.3587	0.0302
0.75	210	0.0901	0.3629	0.0301
0.75	222	-0.5731	0.1966	0.0321
0.75	234	0.1461	0.2481	0.0301
0.75	246	-0.2064	0.2516	0.0303
0.75	258	-0.3653	0.2699	0.0309
0.85	114	-0.0125	0.3761	0.03
0.85	126	0.408	0.3095	0.0311
0.85	210	0.0481	0.355	0.03
0.85	222	0.0104	0.2829	0.03
0.85	234	-0.099	0.2807	0.0301
0.85	246	0.6569	0.1548	0.0328
0.85	258	0.2003	0.324	0.0303
0.95	222	0.5371	0.3209	0.0319
0.95	258	-0.0209	0.3235	0.03
0.45	246	0.0095	0.2765	0.03
0.55	138	-0.2519	0.2396	0.0304
0.55	150	0.1803	0.2614	0.0302
0.55	222	0.1378	0.2244	0.0301
0.55	234	0.0555	0.2267	0.03
0.55	246	-0.1443	0.2027	0.0301
0.65	114	-0.203	0.2486	0.0303
0.65	126	-0.1304	0.2269	0.0301
0.65	138	-0.4197	0.1825	0.0312
0.65	150	0.0269	0.2081	0.03
0.65	162	0.2245	0.2186	0.0303
0.65	222	0.165	0.1911	0.0302
0.65	234	0.1118	0.1859	0.0301
0.65	246	0.0303	0.218	0.03
0.65	258	-0.1925	0.2598	0.0302
0.75	126	0.0251	0.1918	0.03
0.75	138	0.3716	0.184	0.0309
0.75	150	-0.5016	0.1951	0.0316
0.75	174	0.0013	0.2907	0.03
0.75	210	0.1538	0.2413	0.0302
0.75	222	-0.2718	0.1907	0.0305
0.75	234	0.0473	0.1809	0.03
0.75	246	-0.1563	0.1877	0.0302
0.75	258	0.0647	0.1922	0.03
0.85	114	-0.2046	0.2724	0.0303
0.85	210	-0.2697	0.2516	0.0305
0.85	222	0.1708	0.2226	0.0302
0.85	234	-0.1913	0.2092	0.0302
0.85	246	-0.0677	0.2088	0.03
0.85	258	0.2483	0.2017	0.0304
0.85	270	-0.3262	0.2491	0.0307
0.95	126	0.1994	0.2352	0.0303
0.95	234	-0.164	0.2575	0.0302
0.95	246	0.3323	0.237	0.0307
0.95	258	0.0232	0.2526	0.03