CLAS Physics Database

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Measurement E151M3524

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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 :	0.4155 GeV²
W :	1565 GeV
ε :	0.8818
E_beam :	2.999 GeV
ε_L:	0.3277

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
0.45	90	0.1703	0.2807	0.0302
0.45	102	0.0384	0.282	0.03
0.45	282	-0.1462	0.2527	0.0301
0.55	90	0.2219	0.2405	0.0303
0.55	102	-0.1145	0.2342	0.0301
0.55	114	0.2736	0.2543	0.0305
0.65	90	-0.2002	0.2453	0.0303
0.65	102	-0.0255	0.2197	0.03
0.65	114	0.5137	0.2448	0.0317
0.65	126	-0.3852	0.2503	0.031
0.65	234	-0.1243	0.2695	0.0301
0.65	306	-0.0823	0.2569	0.03
0.75	54	0.019	0.2868	0.03
0.75	66	0.2379	0.2407	0.0304
0.75	90	-0.335	0.2144	0.0307
0.75	102	0.4196	0.1989	0.0312
0.75	114	0.4266	0.2026	0.0312
0.75	126	0.0764	0.2614	0.03
0.75	210	0.2926	0.2644	0.0306
0.75	222	-0.0532	0.2606	0.03
0.75	234	0.0004	0.2133	0.03
0.75	246	-0.1765	0.1999	0.0302
0.75	258	0.166	0.238	0.0302
0.75	270	0.4527	0.2542	0.0313
0.85	54	-0.0019	0.245	0.03
0.85	66	-0.0454	0.2008	0.03
0.85	78	-0.485	0.2217	0.0315
0.85	114	0.2483	0.2169	0.0304
0.85	126	0.2588	0.2587	0.0304
0.85	174	-0.1149	0.2807	0.0301
0.85	198	0.1567	0.2643	0.0302
0.85	210	-0.0944	0.2454	0.0301
0.85	222	-0.264	0.2594	0.0305
0.85	234	-0.0851	0.222	0.03
0.85	246	0.0008	0.198	0.03
0.85	258	0.203	0.1694	0.0303
0.85	270	-0.3228	0.1673	0.0307
0.85	282	-0.0942	0.2229	0.0301
0.95	186	0.0675	0.2686	0.03
0.95	222	0.2021	0.2344	0.0303
0.95	234	-0.0453	0.2247	0.03
0.95	246	0.3872	0.2045	0.031
0.95	258	-0.265	0.2051	0.0305
0.95	270	-0.3206	0.2226	0.0307
0.95	282	-0.2036	0.2003	0.0303
0.95	294	0.4823	0.2015	0.0315
0.95	306	0.4264	0.1769	0.0312
0.95	318	-0.0813	0.1854	0.03
0.95	330	0.3368	0.2291	0.0307