CLAS Physics Database

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Measurement E151M2614

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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 :	0.0171 GeV²
W :	1445 GeV
ε :	0.6539
E_beam :	1.0539 GeV
ε_L:	0.0263

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	30	-0.1286	0.2262	0.0301
0.25	42	0.1746	0.2023	0.0302
0.25	54	0.1985	0.2239	0.0303
0.35	42	0.1275	0.154	0.0301
0.35	54	-0.1159	0.1708	0.0301
0.35	66	0.0899	0.2588	0.0301
0.45	30	-0.0743	0.227	0.03
0.45	42	-0.1027	0.1605	0.0301
0.45	54	0.1113	0.1476	0.0301
0.45	66	0.2737	0.1973	0.0305
0.45	222	-0.4719	0.1937	0.0314
0.45	234	-0.4203	0.177	0.0312
0.45	246	0.0198	0.1924	0.03
0.45	258	0.0502	0.2476	0.03
0.55	30	-0.0607	0.199	0.03
0.55	42	-0.2063	0.1793	0.0303
0.55	54	0.16	0.1583	0.0302
0.55	66	0.2725	0.2463	0.0305
0.55	150	0.7094	0.1804	0.0332
0.55	162	-0.2875	0.1897	0.0305
0.55	174	0.1372	0.2358	0.0301
0.55	210	0.2253	0.2053	0.0303
0.55	222	-0.1154	0.1817	0.0301
0.55	234	0.0768	0.1603	0.03
0.55	246	-0.1621	0.1435	0.0302
0.55	258	-0.1352	0.1982	0.0301
0.65	150	0.0722	0.19	0.03
0.65	162	-0.0778	0.2206	0.03
0.65	210	0.143	0.24	0.0301
0.65	222	-0.0659	0.1537	0.03
0.65	234	-0.1135	0.1455	0.0301
0.65	246	0.0785	0.1461	0.03
0.65	258	-0.0102	0.1905	0.03
0.75	150	0.3774	0.2066	0.0309
0.75	162	-0.2729	0.2058	0.0305
0.75	210	-0.0696	0.2646	0.03
0.75	222	-0.0074	0.1753	0.03
0.75	234	-0.0931	0.1708	0.0301
0.75	246	-0.0723	0.1542	0.03
0.75	258	0.1827	0.1738	0.0302
0.85	210	0.0417	0.237	0.03
0.85	222	-0.2651	0.2018	0.0305
0.85	234	-0.0108	0.1792	0.03
0.85	246	0.0548	0.1573	0.03
0.85	258	-0.252	0.188	0.0304
0.95	234	0.1143	0.2497	0.0301