CLAS Physics Database

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Measurement E151M3087

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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 :	0.0844 GeV²
W :	1565 GeV
ε :	0.8353
E_beam :	1.9889 GeV
ε_L:	0.0909

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
0.25	294	-0.5183	0.2244	0.0317
0.35	78	-0.2305	0.2439	0.0304
0.35	270	-0.0185	0.263	0.03
0.35	282	-0.1645	0.2866	0.0302
0.45	66	-0.0679	0.2783	0.03
0.45	78	0.1776	0.2486	0.0302
0.45	270	0.3244	0.243	0.0307
0.45	282	0.0183	0.2358	0.03
0.55	78	-0.1918	0.2698	0.0302
0.55	114	0.4628	0.232	0.0314
0.55	126	0.1029	0.2751	0.0301
0.55	138	0.1125	0.2505	0.0301
0.55	234	-0.2806	0.2613	0.0305
0.55	258	0.2642	0.2762	0.0305
0.55	270	0.3635	0.2513	0.0309
0.55	282	0.0108	0.259	0.03
0.65	114	-0.2102	0.2126	0.0303
0.65	126	0.0917	0.23	0.0301
0.65	138	0.2231	0.2428	0.0303
0.65	198	-0.0824	0.2615	0.03
0.65	210	0.2986	0.2481	0.0306
0.65	222	0.2764	0.2312	0.0305
0.65	234	-0.1084	0.2364	0.0301
0.65	282	0.0093	0.2739	0.03
0.65	294	-0.0382	0.2295	0.03
0.75	114	0.4403	0.256	0.0313
0.75	126	-0.1387	0.2106	0.0301
0.75	138	0.6232	0.23	0.0325
0.75	150	-0.4678	0.2286	0.0314
0.75	210	0.1862	0.2207	0.0302
0.75	222	-0.2777	0.2055	0.0305
0.75	234	0.0124	0.2047	0.03
0.75	246	-0.4355	0.2022	0.0312
0.75	282	-0.0445	0.1972	0.03
0.75	294	0.3819	0.1937	0.031
0.85	102	-0.1775	0.2267	0.0302
0.85	114	0.2076	0.2555	0.0303
0.85	198	-0.4275	0.2549	0.0312
0.85	210	-0.546	0.1971	0.0319
0.85	222	0.0402	0.2336	0.03
0.85	234	0.0718	0.1872	0.03
0.85	246	-0.3979	0.1953	0.031
0.95	114	0.0899	0.2863	0.0301
0.95	222	0.0295	0.2492	0.03
0.95	246	-0.3674	0.2563	0.0309