CLAS Physics Database

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Measurement E151M3548

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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 :	0.348 GeV²
W :	1625 GeV
ε :	0.8731
E_beam :	2.999 GeV
ε_L:	0.2407

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	282	0.2664	0.2653	0.0305
0.45	102	0.215	0.2335	0.0303
0.55	90	-0.5412	0.2259	0.0319
0.55	102	-0.0545	0.2141	0.03
0.55	114	-0.0856	0.2665	0.03
0.55	126	-0.2659	0.2533	0.0305
0.55	306	0.281	0.2403	0.0305
0.65	90	-0.1342	0.2293	0.0301
0.65	102	0.1304	0.2194	0.0301
0.65	114	0.4427	0.1868	0.0313
0.65	126	0.0996	0.2445	0.0301
0.65	222	-0.0995	0.2342	0.0301
0.65	294	0.0841	0.2804	0.03
0.65	306	0.2959	0.2346	0.0306
0.75	66	-0.1574	0.2298	0.0302
0.75	78	0.3988	0.2492	0.031
0.75	90	-0.0366	0.2699	0.03
0.75	102	-0.4285	0.188	0.0312
0.75	114	-0.0733	0.2001	0.03
0.75	126	0.2768	0.2606	0.0305
0.75	198	0.033	0.2797	0.03
0.75	210	0.1176	0.2427	0.0301
0.75	222	0.417	0.1841	0.0311
0.75	234	-0.1427	0.2281	0.0301
0.75	246	0.1675	0.236	0.0302
0.75	258	0.1705	0.2367	0.0302
0.85	54	0.2007	0.2668	0.0303
0.85	66	-0.1204	0.2135	0.0301
0.85	78	0.4388	0.1622	0.0313
0.85	90	0.2119	0.2291	0.0303
0.85	114	0.2547	0.2256	0.0304
0.85	126	-0.1975	0.2668	0.0303
0.85	186	-0.2624	0.2625	0.0305
0.85	198	0.1432	0.214	0.0301
0.85	210	-0.3109	0.1693	0.0306
0.85	222	-0.1587	0.2128	0.0302
0.85	234	-0.0506	0.2023	0.03
0.85	246	-0.1657	0.1649	0.0302
0.85	258	-0.0809	0.1922	0.03
0.85	270	-0.172	0.2183	0.0302
0.85	282	-0.0677	0.2362	0.03
0.95	78	-0.1543	0.263	0.0302
0.95	90	-0.1437	0.2729	0.0301
0.95	186	0.2943	0.258	0.0306
0.95	198	-0.4901	0.2235	0.0316
0.95	210	-0.2068	0.2248	0.0303
0.95	222	0.0127	0.2084	0.03
0.95	234	-0.2516	0.1955	0.0304
0.95	246	-0.0383	0.216	0.03
0.95	258	-0.1311	0.1966	0.0301
0.95	270	-0.1657	0.2079	0.0302
0.95	282	0.0575	0.2192	0.03
0.95	294	-0.0679	0.2096	0.03
0.95	306	0.1169	0.208	0.0301