CLAS Physics Database

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Measurement E151M2473

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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 :	0.0348 GeV²
W :	1235 GeV
ε :	0.8967
E_beam :	1.0539 GeV
ε_L:	0.2379

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
0.15	42	-0.2157	0.2169	0.0303
0.15	54	0.3446	0.2133	0.0308
0.25	42	0.1625	0.191	0.0302
0.25	54	0.0651	0.1747	0.03
0.35	42	-0.1039	0.1916	0.0301
0.35	54	0.0711	0.1721	0.03
0.35	66	-0.1154	0.2752	0.0301
0.45	42	-0.1558	0.2492	0.0302
0.45	54	0.2817	0.2346	0.0305
0.45	270	0.2796	0.1904	0.0305
0.45	282	0.0358	0.1834	0.03
0.55	246	-0.1081	0.2298	0.0301
0.55	258	-0.263	0.1594	0.0305
0.55	270	-0.1824	0.1446	0.0302
0.55	282	0.0689	0.1484	0.03
0.65	234	0.0653	0.2083	0.03
0.65	246	0.0826	0.1617	0.03
0.65	258	-0.1375	0.1255	0.0301
0.65	270	-0.2625	0.1295	0.0305
0.65	282	0.0092	0.1605	0.03
0.75	138	-0.0304	0.2571	0.03
0.75	150	0.1131	0.2112	0.0301
0.75	162	-0.049	0.178	0.03
0.75	174	-0.2657	0.1937	0.0305
0.75	186	0.1741	0.2136	0.0302
0.75	198	0.0941	0.2058	0.0301
0.75	210	-0.2901	0.2162	0.0306
0.75	234	-0.4078	0.1997	0.0311
0.75	246	-0.2399	0.1727	0.0304
0.75	258	0.0338	0.1185	0.03
0.75	270	-0.1712	0.1333	0.0302
0.75	282	-0.2897	0.1653	0.0306
0.85	138	0.0295	0.1811	0.03
0.85	150	-0.0946	0.1699	0.0301
0.85	162	0.1103	0.1513	0.0301
0.85	174	0.1237	0.152	0.0301
0.85	186	0.1949	0.1661	0.0303
0.85	198	0.1838	0.1939	0.0302
0.85	210	-0.3142	0.1938	0.0307
0.85	222	-0.0067	0.2292	0.03
0.85	234	-0.2531	0.1923	0.0304
0.85	246	-0.0055	0.1833	0.03
0.85	258	-0.151	0.1611	0.0302
0.85	270	0.079	0.1765	0.03
0.95	150	-0.007	0.2224	0.03
0.95	162	0.1859	0.254	0.0302
0.95	186	0.2246	0.2346	0.0303
0.95	198	0.3448	0.2439	0.0308