CLAS Physics Database

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Measurement E151M2573

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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 :	0.0121 GeV²
W :	1385 GeV
ε :	0.7612
E_beam :	1.0539 GeV
ε_L:	0.0293

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	0.2542	0.2215	0.0304
0.35	42	-0.4968	0.1516	0.0316
0.35	54	0.025	0.1864	0.03
0.45	30	-0.2294	0.2353	0.0303
0.45	42	-0.0548	0.1499	0.03
0.45	54	-0.4021	0.1476	0.0311
0.45	66	-0.2146	0.2421	0.0303
0.45	222	0.0819	0.2612	0.03
0.45	234	0.3529	0.2326	0.0308
0.55	18	-0.4232	0.2383	0.0312
0.55	30	-0.0765	0.1962	0.03
0.55	42	0.2135	0.1482	0.0303
0.55	54	-0.1033	0.183	0.0301
0.55	138	0	0.2329	0.03
0.55	150	-0.0375	0.226	0.03
0.55	162	0.0974	0.2423	0.0301
0.55	222	-0.2429	0.1853	0.0304
0.55	234	-0.0333	0.1644	0.03
0.55	246	-0.0071	0.1732	0.03
0.55	258	-0.0689	0.2454	0.03
0.65	42	0.2111	0.2306	0.0303
0.65	54	-0.0619	0.2198	0.03
0.65	138	-0.4756	0.1904	0.0315
0.65	150	0.3016	0.1825	0.0306
0.65	162	0.0883	0.1987	0.0301
0.65	174	-0.2513	0.2065	0.0304
0.65	210	0.0588	0.213	0.03
0.65	222	0.4564	0.1403	0.0314
0.65	234	0.2802	0.1478	0.0305
0.65	246	-0.4168	0.123	0.0311
0.65	258	-0.0721	0.1832	0.03
0.75	138	0.1356	0.2197	0.0301
0.75	150	0.4826	0.2091	0.0315
0.75	162	0.2533	0.2171	0.0304
0.75	174	-0.0091	0.2156	0.03
0.75	210	-0.1969	0.2524	0.0303
0.75	222	0.0278	0.1818	0.03
0.75	234	0.0051	0.1565	0.03
0.75	246	0.0893	0.1585	0.0301
0.75	258	0.0223	0.1907	0.03
0.85	210	-0.384	0.2332	0.031
0.85	222	-0.1368	0.1604	0.0301
0.85	234	-0.0974	0.1551	0.0301
0.85	246	0.1878	0.1511	0.0302
0.85	258	0.1192	0.1717	0.0301