CLAS Physics Database

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Measurement E151M3217

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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 :	0.2445 GeV²
W :	1325 GeV
ε :	0.9249
E_beam :	2.2596 GeV
ε_L:	0.6352

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
0.65	90	0.1099	0.1753	0.0302
0.65	258	-0.0626	0.2341	0.03
0.75	102	-0.0391	0.2599	0.03
0.75	114	0.0745	0.2585	0.03
0.75	258	-0.3375	0.2373	0.0307
0.75	270	0.2529	0.2271	0.0304
0.75	282	0.0053	0.2504	0.03
0.85	90	-0.2325	0.2395	0.0304
0.85	102	-0.5147	0.2195	0.0317
0.85	114	-0.162	0.2274	0.0302
0.85	126	-0.0186	0.2554	0.03
0.85	270	-0.3681	0.2114	0.0309
0.85	294	0.4629	0.1981	0.0314
0.95	126	0.2676	0.2444	0.0305
0.95	258	0.4367	0.2339	0.0312
0.95	306	0.3574	0.2395	0.0308
0.65	282	0.0626	0.2407	0.03
0.75	78	-0.2678	0.2278	0.0305
0.75	90	0.3307	0.2243	0.0307
0.75	102	0.2235	0.22	0.0303
0.75	114	-0.3212	0.2459	0.0307
0.75	246	-0.4771	0.2143	0.0315
0.75	270	0.3101	0.2216	0.0306
0.75	282	-0.1811	0.2433	0.0302
0.75	294	0.3535	0.2608	0.0308
0.85	78	-0.0383	0.2433	0.03
0.85	90	0.0454	0.2492	0.03
0.85	102	-0.3877	0.1926	0.031
0.85	114	0.3954	0.2162	0.031
0.85	126	-0.0574	0.255	0.03
0.85	234	-0.1356	0.231	0.0301
0.85	258	0.1995	0.2472	0.0303
0.85	270	0.0511	0.2264	0.03
0.85	282	0.1264	0.2226	0.0301
0.85	294	-0.2676	0.2533	0.0305
0.95	90	0.4041	0.2313	0.0311
0.95	102	-0.0378	0.2543	0.03
0.95	114	-0.0064	0.2581	0.03
0.95	258	-0.0517	0.2618	0.03
0.95	270	-0.3984	0.2385	0.031
0.95	282	-0.2545	0.2503	0.0304
0.95	294	-0.3801	0.2524	0.0309
0.95	306	-0.0104	0.2507	0.03