CLAS Physics Database

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Measurement E151M2494

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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 :	0.0348 GeV²
W :	1265 GeV
ε :	0.8735
E_beam :	1.0539 GeV
ε_L:	0.188

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
0.15	54	0.1877	0.2442	0.0302
0.25	42	0.1443	0.1906	0.0301
0.25	54	-0.3049	0.2324	0.0306
0.35	30	0.4532	0.1755	0.0313
0.35	42	0.1288	0.1714	0.0301
0.35	54	-0.2491	0.1841	0.0304
0.45	42	-0.108	0.18	0.0301
0.45	258	-0.1991	0.2461	0.0303
0.45	270	0.0218	0.2028	0.03
0.45	282	0.0512	0.2024	0.03
0.55	246	-0.0543	0.1784	0.03
0.55	258	-0.2796	0.157	0.0305
0.55	270	-0.1512	0.1511	0.0302
0.55	282	-0.0612	0.1747	0.03
0.65	234	0.0786	0.2111	0.03
0.65	246	-0.057	0.135	0.03
0.65	258	-0.093	0.1194	0.0301
0.65	270	0.1171	0.1306	0.0301
0.65	282	-0.0968	0.188	0.0301
0.75	126	0.3758	0.2442	0.0309
0.75	138	-0.1264	0.2133	0.0301
0.75	150	0.2028	0.1578	0.0303
0.75	162	-0.1254	0.1692	0.0301
0.75	174	-0.0414	0.1957	0.03
0.75	186	0.1001	0.2093	0.0301
0.75	198	0.0201	0.2294	0.03
0.75	210	0.2633	0.2435	0.0305
0.75	234	-0.2824	0.1681	0.0305
0.75	246	-0.1042	0.1218	0.0301
0.75	258	-0.146	0.1312	0.0301
0.75	270	0.1416	0.1239	0.0301
0.75	282	-0.3302	0.1469	0.0307
0.85	126	-0.0271	0.2006	0.03
0.85	138	-0.1265	0.1753	0.0301
0.85	150	0.1923	0.1451	0.0302
0.85	162	-0.0799	0.1491	0.03
0.85	174	-0.1418	0.1696	0.0301
0.85	186	0.0581	0.18	0.03
0.85	198	-0.1106	0.1879	0.0301
0.85	210	-0.0404	0.219	0.03
0.85	222	-0.0432	0.2367	0.03
0.85	234	0.0791	0.1614	0.03
0.85	246	0.1992	0.1501	0.0303
0.85	258	-0.2364	0.1403	0.0304
0.85	270	0.0043	0.153	0.03
0.85	282	-0.1304	0.247	0.0301
0.95	162	-0.3265	0.2236	0.0307
0.95	174	-0.1769	0.2324	0.0302
0.95	186	-0.2138	0.2385	0.0303