CLAS Physics Database

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Measurement E151M3427

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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 :	1325 GeV
ε :	0.9542
E_beam :	2.999 GeV
ε_L:	0.7196

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	306	-0.4729	0.2368	0.0315
-0.05	54	-0.1164	0.2645	0.0301
-0.05	306	0.156	0.256	0.0302
0.05	54	-0.0824	0.2572	0.03
0.05	66	0.1753	0.2471	0.0302
0.15	54	0.4763	0.2208	0.0315
0.15	66	-0.1591	0.2138	0.0302
0.15	306	-0.3556	0.2499	0.0308
0.25	54	-0.0722	0.2847	0.03
0.25	66	0.0269	0.2056	0.03
0.25	78	-0.3002	0.2605	0.0306
0.25	294	0.0214	0.2464	0.03
0.25	306	-0.6342	0.213	0.0326
0.35	66	0.3337	0.233	0.0307
0.35	294	0.3473	0.2456	0.0308
0.45	294	0.239	0.2329	0.0304
0.55	78	-0.4029	0.1998	0.0311
0.55	90	-0.0492	0.1963	0.03
0.55	102	0.0581	0.2615	0.03
0.55	270	-0.0492	0.2378	0.03
0.55	282	-0.0929	0.2016	0.0301
0.55	294	0.3659	0.2533	0.0309
0.65	66	0.1279	0.1781	0.0301
0.65	78	-0.2073	0.1764	0.0303
0.65	90	-0.1144	0.1469	0.0301
0.65	102	-0.0507	0.2064	0.03
0.65	258	0.056	0.2228	0.03
0.65	270	-0.2532	0.1618	0.0304
0.65	282	-0.0844	0.1611	0.03
0.65	294	-0.2173	0.1891	0.0303
0.75	54	0.145	0.2254	0.0301
0.75	66	0.3147	0.1695	0.0307
0.75	78	-0.0992	0.1398	0.0301
0.75	90	0.0849	0.1295	0.03
0.75	102	-0.0989	0.1465	0.0301
0.75	114	0.0041	0.1709	0.03
0.75	234	-0.5748	0.2031	0.0321
0.75	246	0.0975	0.2004	0.0301
0.75	258	-0.2036	0.1851	0.0303
0.75	270	-0.1008	0.1375	0.0301
0.75	282	-0.1244	0.1423	0.0301
0.75	294	-0.1555	0.1608	0.0302
0.75	306	-0.0407	0.1798	0.03
0.85	42	0.0809	0.2767	0.03
0.85	66	0.121	0.1764	0.0301
0.85	78	0.3713	0.1201	0.0309
0.85	90	-0.0662	0.139	0.03
0.85	102	0.2421	0.1347	0.0304
0.85	114	-0.1883	0.1524	0.0302
0.85	126	0.1857	0.1849	0.0302
0.85	210	0.2368	0.2309	0.0304
0.85	222	-0.0637	0.2124	0.03
0.85	234	0.0358	0.1689	0.03
0.85	246	-0.2708	0.1515	0.0305
0.85	258	-0.0919	0.1559	0.0301
0.85	270	-0.0795	0.1495	0.03
0.85	282	0.1182	0.1414	0.0301
0.85	294	0.1944	0.1367	0.0303
0.85	306	-0.1359	0.1273	0.0301
0.85	318	0.0279	0.1992	0.03
0.95	54	-0.0988	0.2789	0.0301
0.95	66	0.2872	0.2113	0.0305
0.95	78	0.3543	0.1846	0.0308
0.95	90	-0.2198	0.191	0.0303
0.95	102	-0.2826	0.2098	0.0305
0.95	114	0.3729	0.1857	0.0309
0.95	126	-0.2526	0.2015	0.0304
0.95	138	0.3113	0.2161	0.0306
0.95	174	-0.2752	0.2826	0.0305
0.95	186	0.7032	0.1786	0.0331
0.95	198	0.0312	0.2282	0.03
0.95	210	0.0426	0.2009	0.03
0.95	222	-0.2028	0.1909	0.0303
0.95	234	0.1475	0.1875	0.0301
0.95	246	0.0949	0.19	0.0301
0.95	258	-0.1555	0.181	0.0302
0.95	270	0.0186	0.1703	0.03
0.95	282	-0.4098	0.1555	0.0311
0.95	294	-0.0245	0.1636	0.03
0.95	306	-0.2624	0.1699	0.0305
0.95	318	-0.0222	0.1693	0.03
0.95	330	0.0873	0.2336	0.0301