CLAS Physics Database

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Measurement E151M2555

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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 :	0.0205 GeV²
W :	1355 GeV
ε :	0.793
E_beam :	1.0539 GeV
ε_L:	0.0601

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	-0.1215	0.1936	0.0301
0.25	54	-0.2502	0.2367	0.0304
0.35	30	0.2505	0.1806	0.0304
0.35	42	0.113	0.1718	0.0301
0.35	54	0.1	0.1724	0.0301
0.35	66	-0.1163	0.2349	0.0301
0.45	18	-0.4219	0.2011	0.0312
0.45	30	-0.0179	0.169	0.03
0.45	42	-0.1256	0.145	0.0301
0.45	54	0.1345	0.1493	0.0301
0.45	234	0.6237	0.2154	0.0325
0.45	258	0.2538	0.2136	0.0304
0.55	30	0.0753	0.1853	0.03
0.55	42	0.0481	0.1384	0.03
0.55	54	-0.1496	0.1632	0.0301
0.55	222	-0.1896	0.1966	0.0302
0.55	234	0.1031	0.1574	0.0301
0.55	246	-0.3599	0.1402	0.0309
0.55	258	0.0583	0.1619	0.03
0.55	270	0.0293	0.234	0.03
0.65	54	0.1158	0.261	0.0301
0.65	138	0.2123	0.2341	0.0303
0.65	150	0.0364	0.1886	0.03
0.65	162	-0.3925	0.1804	0.031
0.65	174	-0.0207	0.208	0.03
0.65	210	0.379	0.244	0.0309
0.65	222	-0.1286	0.1652	0.0301
0.65	234	-0.166	0.1456	0.0302
0.65	246	-0.1266	0.1297	0.0301
0.65	258	0.3505	0.1449	0.0308
0.65	270	-0.0356	0.2042	0.03
0.75	138	-0.0017	0.209	0.03
0.75	150	0.0058	0.2	0.03
0.75	162	-0.1023	0.1827	0.0301
0.75	174	0.0904	0.223	0.0301
0.75	186	-0.2139	0.2311	0.0303
0.75	210	0.3354	0.2302	0.0307
0.75	222	-0.2174	0.2116	0.0303
0.75	234	-0.1048	0.1347	0.0301
0.75	246	0.0506	0.1418	0.03
0.75	258	-0.0857	0.1544	0.03
0.75	270	0.3311	0.1745	0.0307
0.85	138	0.147	0.2378	0.0301
0.85	150	0.2483	0.2251	0.0304
0.85	162	0.2279	0.2362	0.0303
0.85	222	-0.4119	0.1587	0.0311
0.85	234	0.0959	0.1521	0.0301
0.85	246	-0.2078	0.1278	0.0303
0.85	258	0.2497	0.1549	0.0304
0.85	270	0.0933	0.1845	0.0301
0.95	234	-0.185	0.2356	0.0302
0.95	246	-0.2658	0.254	0.0305