CLAS Physics Database

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Measurement E151M3453

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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 :	0.496 GeV²
W :	1385 GeV
ε :	0.9169
E_beam :	2.999 GeV
ε_L:	0.6807

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	-0.1736	0.2712	0.0302
0.55	78	-0.0759	0.2211	0.03
0.55	90	-0.1545	0.2377	0.0302
0.55	102	0.1803	0.2423	0.0302
0.55	270	-0.108	0.43	0.0301
0.65	66	0.7465	0.1667	0.0335
0.65	78	-0.1225	0.2057	0.0301
0.65	90	0.0204	0.2193	0.03
0.65	102	-0.3456	0.2101	0.0308
0.65	258	-0.0995	0.2776	0.0301
0.65	270	0.4973	0.2395	0.0316
0.65	282	0.2249	0.2357	0.0303
0.65	294	0.0884	0.2636	0.0301
0.75	66	0.0222	0.2599	0.03
0.75	78	-0.2001	0.2145	0.0303
0.75	90	0.0822	0.1883	0.03
0.75	102	-0.3557	0.2337	0.0308
0.75	114	-0.2411	0.2485	0.0304
0.75	234	-0.1543	0.2472	0.0302
0.75	246	0.3607	0.1893	0.0309
0.75	258	0.0456	0.2174	0.03
0.75	270	-0.3683	0.197	0.0309
0.75	282	-0.2338	0.2443	0.0304
0.75	294	-0.0877	0.2549	0.0301
0.75	306	-0.0481	0.2595	0.03
0.85	42	-0.0451	0.2482	0.03
0.85	78	-0.1577	0.2176	0.0302
0.85	90	0.0922	0.2456	0.0301
0.85	102	0.3394	0.2573	0.0308
0.85	126	-0.0629	0.2753	0.03
0.85	222	0.2569	0.2224	0.0304
0.85	234	0.1308	0.2394	0.0301
0.85	246	-0.0413	0.258	0.03
0.85	258	-0.1767	0.2293	0.0302
0.85	270	0.1155	0.1945	0.0301
0.85	282	-0.1537	0.2091	0.0302
0.85	294	-0.0505	0.2054	0.03
0.85	306	-0.3886	0.1883	0.031
0.85	318	-0.1585	0.2227	0.0302
0.85	330	-0.4204	0.2215	0.0312
0.95	90	-0.2531	0.2557	0.0304
0.95	222	-0.3054	0.2693	0.0306
0.95	234	0.1223	0.2307	0.0301
0.95	246	-0.2726	0.259	0.0305
0.95	258	-0.1888	0.2698	0.0302
0.95	270	0.0647	0.2556	0.03
0.95	282	0.0143	0.2673	0.03
0.95	294	0.1821	0.2544	0.0302
0.95	306	-0.1766	0.2363	0.0302
0.95	318	0.0852	0.2485	0.03
0.95	330	0.2505	0.2432	0.0304