CLAS Physics Database

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Measurement E151M2593

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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 :	1415 GeV
ε :	0.7141
E_beam :	1.0539 GeV
ε_L:	0.0236

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	-0.0206	0.2523	0.03
0.35	30	0.6945	0.1822	0.0331
0.35	42	-0.0686	0.1815	0.03
0.35	54	0.0898	0.1801	0.0301
0.45	30	-0.0485	0.2406	0.03
0.45	42	-0.1089	0.1573	0.0301
0.45	54	0.0723	0.1594	0.03
0.45	66	-0.1723	0.2228	0.0302
0.45	222	-0.3943	0.2185	0.031
0.45	234	0.1482	0.1979	0.0301
0.45	246	-0.0234	0.2365	0.03
0.55	18	-0.0278	0.2378	0.03
0.55	30	-0.2182	0.2076	0.0303
0.55	42	0.3033	0.1359	0.0306
0.55	54	-0.2239	0.1613	0.0303
0.55	66	-0.1262	0.2414	0.0301
0.55	138	0.2588	0.2333	0.0304
0.55	150	0.0524	0.2222	0.03
0.55	162	0.0918	0.2194	0.0301
0.55	210	-0.055	0.259	0.03
0.55	222	0.0099	0.1842	0.03
0.55	234	0.4292	0.1904	0.0312
0.55	246	-0.2254	0.1763	0.0303
0.55	258	-0.0031	0.2201	0.03
0.65	30	-0.1372	0.2563	0.0301
0.65	42	-0.169	0.2337	0.0302
0.65	54	0.1762	0.23	0.0302
0.65	138	0.1912	0.2508	0.0302
0.65	150	0.2314	0.1878	0.0304
0.65	162	-0.3246	0.19	0.0307
0.65	210	0.3275	0.2163	0.0307
0.65	222	-0.2071	0.1547	0.0303
0.65	234	-0.1301	0.1591	0.0301
0.65	246	-0.0132	0.1578	0.03
0.65	258	-0.3109	0.2205	0.0306
0.75	42	-0.0826	0.2602	0.03
0.75	138	-0.2555	0.2094	0.0304
0.75	150	0.0118	0.2516	0.03
0.75	162	-0.1363	0.2553	0.0301
0.75	174	-0.1428	0.2535	0.0301
0.75	210	-0.1253	0.2231	0.0301
0.75	222	-0.155	0.1717	0.0302
0.75	234	0.0723	0.1694	0.03
0.75	246	-0.1387	0.157	0.0301
0.75	258	0.1335	0.2197	0.0301
0.85	150	0.4552	0.2336	0.0314
0.85	210	0.0763	0.2437	0.03
0.85	222	0.1274	0.1834	0.0301
0.85	234	-0.1903	0.1541	0.0302
0.85	246	-0.044	0.1449	0.03
0.85	258	-0.307	0.2074	0.0306