CLAS Physics Database

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Measurement E151M3552

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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 :	0.0844 GeV²
W :	1655 GeV
ε :	0.9103
E_beam :	2.999 GeV
ε_L:	0.0717

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	-0.1446	0.2753	0.0301
0.35	78	-0.0878	0.2405	0.0301
0.35	270	-0.1128	0.2498	0.0301
0.45	78	0.6257	0.1968	0.0325
0.45	102	-0.4067	0.2172	0.0311
0.45	114	0.1785	0.212	0.0302
0.45	126	0.5326	0.2036	0.0318
0.45	258	0.1129	0.2125	0.0301
0.45	270	-0.0886	0.2006	0.0301
0.45	282	-0.2385	0.2271	0.0304
0.45	294	-0.4495	0.2312	0.0313
0.55	66	-0.0808	0.2431	0.03
0.55	102	-0.1342	0.2158	0.0301
0.55	114	0.0072	0.1918	0.03
0.55	126	-0.3677	0.208	0.0309
0.55	138	-0.4475	0.2092	0.0313
0.55	198	-0.411	0.2446	0.0311
0.55	210	-0.0813	0.2245	0.03
0.55	222	-0.0545	0.2307	0.03
0.55	234	0.3436	0.2611	0.0308
0.55	258	-0.419	0.2132	0.0311
0.55	270	0.1144	0.1907	0.0301
0.55	282	-0.0102	0.2569	0.03
0.65	42	-0.4196	0.2196	0.0312
0.65	54	0.2032	0.2804	0.0303
0.65	66	0.1581	0.2016	0.0302
0.65	102	-0.515	0.2036	0.0317
0.65	114	-0.0046	0.1958	0.03
0.65	126	0.4554	0.159	0.0314
0.65	138	0.2533	0.1997	0.0304
0.65	186	-0.0214	0.2664	0.03
0.65	198	-0.1604	0.222	0.0302
0.65	210	0.0905	0.1939	0.0301
0.65	222	0.1608	0.1875	0.0302
0.65	234	-0.3556	0.23	0.0308
0.65	282	0.2728	0.1944	0.0305
0.65	294	-0.0647	0.2525	0.03
0.75	90	-0.3236	0.2228	0.0307
0.75	114	0.2448	0.1995	0.0304
0.75	126	-0.0449	0.1841	0.03
0.75	138	0.2098	0.1913	0.0303
0.75	174	0.0561	0.2596	0.03
0.75	186	-0.1327	0.2258	0.0301
0.75	198	0.0734	0.1977	0.03
0.75	210	-0.1418	0.1898	0.0301
0.75	222	-0.0603	0.157	0.03
0.75	234	-0.1412	0.2132	0.0301
0.75	270	-0.3509	0.227	0.0308
0.75	282	0.2702	0.1892	0.0305
0.75	294	0.317	0.1941	0.0307
0.85	90	-0.1188	0.195	0.0301
0.85	102	0.1041	0.1659	0.0301
0.85	114	0.2316	0.1917	0.0304
0.85	126	-0.3297	0.2507	0.0307
0.85	186	0.2603	0.1985	0.0304
0.85	198	0.0378	0.1877	0.03
0.85	210	-0.3637	0.1809	0.0309
0.85	222	-0.1602	0.1623	0.0302
0.85	234	-0.0454	0.1562	0.03
0.85	246	-0.5699	0.1981	0.0321
0.85	270	0.0795	0.3112	0.03
0.85	282	0.0671	0.2419	0.03
0.95	102	-0.377	0.2375	0.0309
0.95	114	-0.0926	0.2683	0.0301
0.95	198	0.2018	0.2131	0.0303
0.95	210	0.1325	0.2221	0.0301
0.95	222	-0.0962	0.2268	0.0301
0.95	234	-0.0593	0.2197	0.03
0.95	246	0.1416	0.2292	0.0301