CLAS Physics Database

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Measurement E151M2495

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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 :	0.0415 GeV²
W :	1265 GeV
ε :	0.8671
E_beam :	1.0539 GeV
ε_L:	0.2189

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	-0.3458	0.2421	0.0308
0.25	30	0.0943	0.2467	0.0301
0.25	42	-0.0985	0.1807	0.0301
0.35	30	-0.1125	0.2142	0.0301
0.35	42	0.152	0.1718	0.0302
0.35	54	0.0592	0.2475	0.03
0.45	42	-0.0277	0.1996	0.03
0.45	270	-0.2739	0.2166	0.0305
0.45	282	-0.1071	0.1959	0.0301
0.55	246	0.0608	0.2006	0.03
0.55	258	0.1971	0.1418	0.0303
0.55	270	-0.0085	0.136	0.03
0.55	282	-0.0511	0.1611	0.03
0.65	234	-0.0662	0.1863	0.03
0.65	246	0.1202	0.1454	0.0301
0.65	258	-0.0134	0.1506	0.03
0.65	270	-0.1243	0.1392	0.0301
0.65	282	-0.1214	0.161	0.0301
0.75	138	0.0054	0.2058	0.03
0.75	150	0.0534	0.1689	0.03
0.75	162	0.2455	0.1932	0.0304
0.75	174	-0.09	0.2444	0.0301
0.75	186	-0.0737	0.22	0.03
0.75	222	0.174	0.2158	0.0302
0.75	234	-0.0952	0.1938	0.0301
0.75	246	-0.2058	0.1303	0.0303
0.75	258	-0.159	0.1338	0.0302
0.75	270	0.027	0.1323	0.03
0.75	282	-0.2078	0.1437	0.0303
0.85	126	-0.1919	0.2421	0.0302
0.85	138	-0.0644	0.1621	0.03
0.85	150	0.0069	0.1473	0.03
0.85	162	-0.1413	0.1423	0.0301
0.85	174	-0.1114	0.1617	0.0301
0.85	186	0.0774	0.1697	0.03
0.85	198	0.0821	0.1844	0.03
0.85	210	0.2713	0.24	0.0305
0.85	234	0.0254	0.1798	0.03
0.85	246	-0.1464	0.1708	0.0301
0.85	258	-0.1332	0.1358	0.0301
0.85	270	-0.1854	0.1416	0.0302
0.85	282	0.3023	0.1684	0.0306
0.95	150	0.0987	0.2135	0.0301
0.95	186	-0.0814	0.2226	0.03