CLAS Physics Database

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Measurement E151M3113

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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 :	0.0291 GeV²
W :	1625 GeV
ε :	0.8139
E_beam :	1.9889 GeV
ε_L:	0.0261

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	78	-0.1239	0.2578	0.0301
0.45	78	0.2261	0.2538	0.0303
0.45	90	-0.2327	0.2612	0.0304
0.45	138	0.2265	0.2641	0.0303
0.45	270	0.5177	0.2165	0.0317
0.45	282	-0.2039	0.2644	0.0303
0.55	78	-0.149	0.2365	0.0301
0.55	198	0.2876	0.2876	0.0305
0.55	210	0.1761	0.2249	0.0302
0.55	270	-0.3398	0.1942	0.0308
0.55	282	-0.1537	0.2589	0.0302
0.65	126	-0.1903	0.2223	0.0302
0.65	138	-0.1568	0.2208	0.0302
0.65	150	-0.1465	0.2813	0.0301
0.65	210	-0.1995	0.2554	0.0303
0.65	222	0.1637	0.2405	0.0302
0.65	282	-0.2738	0.2492	0.0305
0.75	66	0.1051	0.2505	0.0301
0.75	78	-0.006	0.2551	0.03
0.75	210	0.0889	0.2147	0.0301
0.75	222	-0.0167	0.213	0.03
0.75	270	0.4927	0.1789	0.0316
0.75	282	0.0079	0.222	0.03
0.75	294	0.2053	0.2629	0.0303
0.85	114	-0.1481	0.2297	0.0301
0.85	126	-0.0201	0.191	0.03
0.85	138	-0.2944	0.2311	0.0306
0.85	198	-0.3123	0.2221	0.0306
0.85	210	0.0992	0.2282	0.0301
0.85	222	-0.0259	0.2265	0.03