CLAS Physics Database

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Measurement E151M2492

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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 :	0.0245 GeV²
W :	1265 GeV
ε :	0.8831
E_beam :	1.0539 GeV
ε_L:	0.1373

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	42	-0.3574	0.2397	0.0308
0.25	42	0.382	0.1805	0.031
0.25	54	0.0188	0.2343	0.03
0.35	30	-0.3013	0.189	0.0306
0.35	42	-0.0308	0.1684	0.03
0.35	54	-0.2267	0.2125	0.0303
0.45	30	0.0127	0.1868	0.03
0.45	42	-0.0677	0.1511	0.03
0.45	54	0.0528	0.1698	0.03
0.45	258	-0.1485	0.1941	0.0301
0.45	270	-0.0419	0.2254	0.03
0.55	42	-0.2876	0.2117	0.0305
0.55	54	-0.0892	0.2391	0.0301
0.55	234	-0.0865	0.2527	0.03
0.55	246	-0.1114	0.1339	0.0301
0.55	258	0.055	0.1371	0.03
0.55	270	0.1489	0.1368	0.0301
0.55	282	-0.2031	0.2338	0.0303
0.65	150	0.3015	0.2048	0.0306
0.65	162	0.322	0.2347	0.0307
0.65	174	0.0016	0.2449	0.03
0.65	222	-0.1865	0.2102	0.0302
0.65	234	0.1247	0.1414	0.0301
0.65	246	-0.1189	0.1154	0.0301
0.65	258	-0.2031	0.1092	0.0303
0.65	270	0.1704	0.138	0.0302
0.65	282	-0.0123	0.1667	0.03
0.75	126	-0.0012	0.2513	0.03
0.75	138	-0.0516	0.1823	0.03
0.75	150	-0.33	0.1777	0.0307
0.75	162	0.047	0.1799	0.03
0.75	174	-0.2498	0.1463	0.0304
0.75	186	0.1456	0.1705	0.0301
0.75	198	0.1469	0.1888	0.0301
0.75	210	0.1195	0.2394	0.0301
0.75	222	0.3384	0.1748	0.0308
0.75	234	0.1999	0.1307	0.0303
0.75	246	-0.1303	0.1207	0.0301
0.75	258	0.1178	0.1194	0.0301
0.75	270	-0.0807	0.1186	0.03
0.75	282	0.0911	0.1643	0.0301
0.85	138	0.207	0.201	0.0303
0.85	150	0.2342	0.1713	0.0304
0.85	162	-0.0056	0.1544	0.03
0.85	174	0.005	0.1754	0.03
0.85	186	-0.1474	0.1772	0.0301
0.85	198	0.0752	0.1826	0.03
0.85	210	0.1415	0.2209	0.0301
0.85	222	-0.1229	0.2081	0.0301
0.85	234	-0.2351	0.1616	0.0304
0.85	246	-0.2667	0.1396	0.0305
0.85	258	-0.3003	0.1269	0.0306
0.85	270	-0.0526	0.1493	0.03
0.95	138	0.1261	0.2516	0.0301