CLAS Physics Database

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Measurement E151M2499

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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 :	1265 GeV
ε :	0.8263
E_beam :	1.0539 GeV
ε_L:	0.3799

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
0.05	42	0.298	0.2311	0.0306
0.15	42	-0.0104	0.2105	0.03
0.15	54	0.3455	0.2306	0.0308
0.25	30	-0.2259	0.2486	0.0303
0.25	42	-0.0877	0.199	0.0301
0.25	54	0.0205	0.2361	0.03
0.35	42	-0.1018	0.2222	0.0301
0.45	270	-0.0522	0.225	0.03
0.45	282	-0.1615	0.1926	0.0302
0.55	258	-0.0119	0.1771	0.03
0.55	270	0.078	0.1541	0.03
0.55	282	-0.184	0.1591	0.0302
0.55	294	-0.0173	0.2337	0.03
0.65	246	0.0663	0.1899	0.03
0.65	258	-0.0575	0.1435	0.03
0.65	270	-0.2197	0.1313	0.0303
0.65	282	0.0124	0.1494	0.03
0.65	294	-0.2429	0.2383	0.0304
0.75	126	0.2386	0.253	0.0304
0.75	138	-0.048	0.2185	0.03
0.75	162	0.1787	0.2552	0.0302
0.75	234	-0.0851	0.1921	0.03
0.75	246	-0.1812	0.186	0.0302
0.75	258	-0.0968	0.1315	0.0301
0.75	270	0.0204	0.1515	0.03
0.75	282	-0.2403	0.1388	0.0304
0.75	294	-0.324	0.2183	0.0307
0.85	114	-0.2064	0.2473	0.0303
0.85	126	0.3226	0.1605	0.0307
0.85	138	-0.1484	0.1539	0.0301
0.85	150	0.0056	0.1584	0.03
0.85	162	0.1714	0.1619	0.0302
0.85	174	-0.0147	0.1556	0.03
0.85	186	-0.4531	0.1635	0.0313
0.85	198	-0.206	0.1874	0.0303
0.85	210	-0.3229	0.2039	0.0307
0.85	222	-0.1501	0.2636	0.0301
0.85	234	-0.0811	0.2312	0.03
0.85	246	-0.0692	0.1975	0.03
0.85	258	-0.0645	0.1724	0.03
0.85	270	-0.2645	0.1534	0.0305
0.85	282	-0.1135	0.1572	0.0301
0.95	102	-0.1568	0.2494	0.0302
0.95	126	0.2524	0.181	0.0304
0.95	138	0.08	0.2118	0.03
0.95	150	-0.3496	0.1924	0.0308
0.95	162	0.39	0.1663	0.031
0.95	174	-0.3428	0.1792	0.0308
0.95	186	-0.0806	0.1981	0.03
0.95	198	-0.0806	0.1961	0.03
0.95	210	-0.2861	0.2141	0.0305