CLAS Physics Database

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Measurement E151M3075

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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 :	0.1435 GeV²
W :	1535 GeV
ε :	0.8323
E_beam :	1.9889 GeV
ε_L:	0.1604

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	282	-0.2253	0.2704	0.0303
0.35	282	-0.1347	0.2691	0.0301
0.35	294	0.1921	0.2512	0.0302
0.45	282	-0.1563	0.2178	0.0302
0.45	294	0.1916	0.2117	0.0302
0.55	114	0.0982	0.2433	0.0301
0.55	246	0.4186	0.2604	0.0311
0.55	270	0.0073	0.2613	0.03
0.55	282	-0.0098	0.24	0.03
0.65	54	-0.3731	0.2333	0.0309
0.65	102	0.6874	0.1967	0.033
0.65	114	0.121	0.2451	0.0301
0.65	126	0.3617	0.1975	0.0309
0.65	150	-0.4409	0.2335	0.0313
0.65	222	0.1795	0.2513	0.0302
0.65	234	0.2291	0.2076	0.0303
0.65	294	-0.1505	0.2691	0.0302
0.75	102	0.0403	0.2585	0.03
0.75	114	0.0591	0.2724	0.03
0.75	126	-0.0094	0.2198	0.03
0.75	138	-0.2178	0.2593	0.0303
0.75	210	0.294	0.2814	0.0306
0.75	222	-0.2312	0.1802	0.0304
0.75	234	0.1766	0.197	0.0302
0.75	246	-0.2228	0.1901	0.0303
0.75	258	0.1058	0.2764	0.0301
0.75	282	0.2024	0.2609	0.0303
0.85	78	-0.1632	0.2599	0.0302
0.85	90	0.0608	0.219	0.03
0.85	114	0.0521	0.2401	0.03
0.85	138	0.2979	0.2684	0.0306
0.85	198	0.2105	0.2467	0.0303
0.85	210	-0.4804	0.2394	0.0315
0.85	222	-0.2065	0.2573	0.0303
0.85	234	-0.1131	0.1928	0.0301
0.85	246	0.1044	0.2228	0.0301
0.85	258	-0.0948	0.2324	0.0301
0.85	270	0.1159	0.2473	0.0301
0.95	102	0.6112	0.1994	0.0324
0.95	222	-0.0545	0.2394	0.03
0.95	234	-0.068	0.2138	0.03
0.95	258	0.1185	0.2027	0.0301
0.95	270	-0.2281	0.2077	0.0303