CLAS Physics Database

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Measurement E151M3255

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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 :	0.205 GeV²
W :	1415 GeV
ε :	0.9075
E_beam :	2.2596 GeV
ε_L:	0.3721

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
0.35	66	0.4415	0.2435	0.0313
0.45	282	-0.1244	0.2491	0.0301
0.65	102	-0.1211	0.2448	0.0301
0.65	114	-0.0783	0.2502	0.03
0.65	258	-0.223	0.2414	0.0303
0.75	90	0.3482	0.2001	0.0308
0.75	102	-0.4518	0.1942	0.0313
0.75	114	0.042	0.2162	0.03
0.75	126	-0.0948	0.2537	0.0301
0.75	234	0.172	0.1908	0.0302
0.75	246	-0.0473	0.2124	0.03
0.75	258	0.2244	0.2558	0.0303
0.75	270	-0.0504	0.2382	0.03
0.85	66	0.3672	0.2395	0.0309
0.85	102	0.2957	0.195	0.0306
0.85	114	0.4062	0.2059	0.0311
0.85	246	0.0796	0.214	0.03
0.85	258	-0.0274	0.2211	0.03
0.85	270	0.2966	0.2498	0.0306
0.85	282	-0.0695	0.2585	0.03
0.95	258	0.0233	0.2059	0.03
0.95	270	-0.0432	0.2611	0.03
0.95	282	-0.2459	0.2426	0.0304
0.95	294	0.2718	0.2142	0.0305
0.25	78	-0.0499	0.2602	0.03
0.65	102	0.3467	0.2242	0.0308
0.65	258	-0.3027	0.2117	0.0306
0.75	90	0.343	0.2295	0.0308
0.75	102	-0.2804	0.232	0.0305
0.75	114	-0.4077	0.2377	0.0311
0.75	126	0.4494	0.2287	0.0313
0.75	246	-0.0593	0.2139	0.03
0.75	258	-0.1971	0.2246	0.0303
0.75	270	0.0633	0.2447	0.03
0.85	102	-0.0499	0.2491	0.03
0.85	114	0.017	0.2119	0.03
0.85	246	0.0199	0.2637	0.03
0.85	258	-0.1873	0.2109	0.0302
0.85	270	0.2834	0.2553	0.0305
0.85	282	-0.1908	0.2401	0.0302
0.85	294	0.0721	0.2274	0.03
0.95	66	0.0501	0.2544	0.03
0.95	258	0.3448	0.2354	0.0308
0.95	282	-0.2083	0.1967	0.0303