CLAS Physics Database

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Measurement E151M3500

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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 :	1505 GeV
ε :	0.8866
E_beam :	2.999 GeV
ε_L:	0.4379

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
0.05	294	-0.2066	0.2781	0.0303
0.15	66	-0.8886	0.122	0.0349
0.25	294	-0.6799	0.1889	0.0329
0.45	78	-0.3585	0.2642	0.0308
0.45	90	0.1187	0.2699	0.0301
0.45	102	0.1536	0.254	0.0302
0.55	90	0.1164	0.2193	0.0301
0.55	102	0.1337	0.2413	0.0301
0.65	78	0.2391	0.2048	0.0304
0.65	90	-0.0505	0.2162	0.03
0.65	102	0.328	0.2432	0.0307
0.65	114	0.3231	0.2734	0.0307
0.65	126	0.3033	0.2616	0.0306
0.65	234	0.5146	0.2186	0.0317
0.65	246	0.4045	0.2202	0.0311
0.65	258	-0.0119	0.276	0.03
0.75	54	0.2114	0.2295	0.0303
0.75	90	0.0156	0.2183	0.03
0.75	102	0.1276	0.2489	0.0301
0.75	114	0.3157	0.219	0.0307
0.75	222	0.3757	0.2149	0.0309
0.75	234	-0.182	0.2228	0.0302
0.75	246	-0.2181	0.2078	0.0303
0.75	258	-0.0327	0.255	0.03
0.75	282	-0.0992	0.2621	0.0301
0.85	54	0.0579	0.2257	0.03
0.85	66	-0.2374	0.2745	0.0304
0.85	90	0.3576	0.188	0.0308
0.85	102	-0.0525	0.2334	0.03
0.85	114	-0.4942	0.2368	0.0316
0.85	210	-0.2129	0.27	0.0303
0.85	222	-0.0953	0.2181	0.0301
0.85	234	-0.4229	0.1909	0.0312
0.85	246	-0.2156	0.2261	0.0303
0.85	258	-0.1539	0.206	0.0302
0.85	270	-0.2882	0.1987	0.0305
0.85	282	-0.1039	0.2259	0.0301
0.85	294	-0.1807	0.2086	0.0302
0.85	306	-0.5783	0.1813	0.0322
0.85	318	0.0319	0.2804	0.03
0.95	234	0.2935	0.239	0.0306
0.95	246	-0.1548	0.2658	0.0302
0.95	258	0.2009	0.2488	0.0303
0.95	270	-0.0996	0.2726	0.0301
0.95	294	-0.514	0.1881	0.0317
0.95	306	0.0105	0.2258	0.03
0.95	318	0.265	0.2473	0.0305
0.95	330	0.4891	0.1979	0.0316
0.95	342	-0.2173	0.2439	0.0303