CLAS Physics Database

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Measurement E151M2510

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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 :	0.0143 GeV²
W :	1295 GeV
ε :	0.8663
E_beam :	1.0539 GeV
ε_L:	0.0666

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	0.0788	0.2124	0.03
0.25	54	-0.2229	0.2201	0.0303
0.35	42	-0.1143	0.2062	0.0301
0.35	54	-0.0257	0.1746	0.03
0.45	30	-0.0434	0.2341	0.03
0.45	42	-0.192	0.2089	0.0302
0.45	54	0.3624	0.2276	0.0309
0.45	258	-0.0458	0.2151	0.03
0.45	270	-0.0925	0.2413	0.0301
0.55	30	0.2041	0.2202	0.0303
0.55	42	-0.1494	0.1588	0.0301
0.55	54	-0.1694	0.2156	0.0302
0.55	222	-0.0619	0.2105	0.03
0.55	234	0.0991	0.1606	0.0301
0.55	246	-0.1576	0.1334	0.0302
0.55	258	0.2	0.1279	0.0303
0.55	270	0.1421	0.1959	0.0301
0.65	54	-0.416	0.2357	0.0311
0.65	138	-0.2918	0.2356	0.0306
0.65	150	0.0918	0.1852	0.0301
0.65	162	-0.0952	0.1643	0.0301
0.65	174	-0.0733	0.2206	0.03
0.65	186	0.4419	0.2024	0.0313
0.65	210	-0.0669	0.2405	0.03
0.65	222	0.2019	0.2022	0.0303
0.65	234	-0.2565	0.1421	0.0304
0.65	246	-0.0257	0.1099	0.03
0.65	258	0.0323	0.121	0.03
0.65	270	-0.137	0.1636	0.0301
0.75	138	-0.3851	0.171	0.031
0.75	150	-0.1916	0.1714	0.0302
0.75	162	-0.0458	0.1874	0.03
0.75	174	-0.2765	0.1762	0.0305
0.75	186	0.0127	0.2004	0.03
0.75	198	0.0423	0.242	0.03
0.75	210	-0.0118	0.222	0.03
0.75	222	-0.3251	0.1795	0.0307
0.75	234	0.0228	0.1415	0.03
0.75	246	-0.0404	0.1151	0.03
0.75	258	0.0718	0.1271	0.03
0.75	270	0.0127	0.1906	0.03
0.85	150	-0.0433	0.2435	0.03
0.85	162	0.2164	0.2163	0.0303
0.85	174	0.1329	0.2513	0.0301
0.85	186	0.3674	0.2118	0.0309
0.85	198	0.1848	0.2415	0.0302
0.85	210	-0.2893	0.2425	0.0306
0.85	222	-0.3599	0.1471	0.0309
0.85	234	0.0345	0.1553	0.03
0.85	246	-0.0959	0.1326	0.0301
0.85	258	-0.2611	0.15	0.0305
0.85	270	-0.1169	0.207	0.0301