CLAS Physics Database

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Measurement E151M3465

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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 :	0.5925 GeV²
W :	1415 GeV
ε :	0.8954
E_beam :	2.999 GeV
ε_L:	0.6357

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	78	0.1479	0.2801	0.0301
0.45	90	-0.357	0.2413	0.0308
0.55	78	0.1046	0.2774	0.0301
0.55	90	0.0552	0.2556	0.03
0.65	78	-0.2229	0.2416	0.0303
0.65	90	0.0578	0.2764	0.03
0.65	102	0.2094	0.2657	0.0303
0.65	114	0.1374	0.2632	0.0301
0.65	270	-0.0101	0.2872	0.03
0.75	54	0.2943	0.2622	0.0306
0.75	78	0.0374	0.2605	0.03
0.75	90	0.0317	0.2464	0.03
0.75	246	-0.0133	0.2782	0.03
0.75	258	-0.0917	0.2785	0.0301
0.75	282	0.2608	0.2404	0.0305
0.75	294	-0.0782	0.2682	0.03
0.85	90	-0.0776	0.2454	0.03
0.85	246	0.0849	0.2781	0.03
0.85	270	-0.346	0.2241	0.0308
0.85	282	0.0279	0.2329	0.03
0.85	294	0.2002	0.2326	0.0303
0.85	306	0.2364	0.1874	0.0304
0.85	318	0.0477	0.2586	0.03
0.85	330	0.1742	0.2269	0.0302
0.95	222	-0.7581	0.2032	0.0336
0.95	258	-0.1714	0.2729	0.0302
0.95	282	0.5733	0.2245	0.0321
0.95	294	0.3489	0.2522	0.0308