CLAS Physics Database

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Measurement E151M2814

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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 :	0.0205 GeV²
W :	1475 GeV
ε :	0.768
E_beam :	1.3383 GeV
ε_L:	0.032

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	30	-0.1063	0.189	0.0312
0.35	42	0.0452	0.192	0.0302
0.45	18	0.041	0.2124	0.03
0.45	30	-0.0482	0.1764	0.0302
0.45	42	0.0175	0.1662	0.0305
0.45	54	-0.0915	0.3563	0.0301
0.45	126	-0.2264	0.2558	0.0303
0.45	138	0.2867	0.2379	0.0305
0.45	150	0.3259	0.2332	0.0307
0.45	210	0.0535	0.1843	0.0317
0.45	222	-0.5415	0.1659	0.0323
0.45	234	0.2908	0.1912	0.0308
0.55	30	-0.0901	0.207	0.0301
0.55	42	-0.2872	0.2121	0.0305
0.55	126	-0.1858	0.2024	0.0302
0.55	138	0.3709	0.1981	0.0309
0.55	150	0.4225	0.1981	0.0312
0.55	162	-0.0026	0.2446	0.03
0.55	210	0.1291	0.2464	0.0301
0.55	222	-0.3823	0.1811	0.031
0.55	234	-0.1177	0.1929	0.0301
0.55	246	0.0103	0.2178	0.03
0.65	126	0.006	0.2258	0.03
0.65	138	-0.0042	0.1782	0.03
0.65	150	0.2083	0.2236	0.0303
0.65	162	0.1642	0.2519	0.0302
0.65	198	0.5558	0.2422	0.032
0.65	210	0.1774	0.2288	0.0302
0.65	222	0.1224	0.173	0.0301
0.65	234	-0.2696	0.1861	0.0305
0.65	246	0.2153	0.2198	0.0303
0.75	126	0.1094	0.2567	0.0301
0.75	138	-0.0958	0.1872	0.0301
0.75	150	-0.1766	0.1887	0.0302
0.75	162	0.39	0.1989	0.031
0.75	198	0.3031	0.2556	0.0306
0.75	210	0.1036	0.2081	0.0301
0.75	222	0.0158	0.1663	0.03
0.75	234	0.0245	0.1873	0.03
0.75	246	-0.1265	0.1873	0.0301
0.85	114	0.0279	0.2602	0.03
0.85	126	0.1308	0.2213	0.0301
0.85	138	0.1293	0.224	0.0301
0.85	198	0.4391	0.2534	0.0313
0.85	210	-0.2889	0.227	0.0306
0.85	222	0.0382	0.2192	0.03
0.85	234	0.0269	0.1673	0.03
0.85	246	0.1498	0.2175	0.0301
0.85	258	-0.1736	0.2721	0.0302
0.95	234	-0.278	0.2385	0.0305
0.45	246	-0.646	0.2391	0.0327
0.55	18	-0.2856	0.3343	0.0305
0.55	30	0.3063	0.2996	0.0306
0.55	42	0.2101	0.3032	0.0303
0.55	126	-0.0499	0.3272	0.03
0.55	138	0.0259	0.2878	0.03
0.55	150	0.2429	0.3187	0.0304
0.55	162	-0.2449	0.439	0.0304
0.55	174	-0.4227	0.3794	0.0312
0.55	210	0.1541	0.3079	0.0302
0.55	222	-0.3068	0.2403	0.0306
0.55	234	-0.1308	0.2663	0.0301
0.55	246	-0.3097	0.2983	0.0306
0.65	126	0.2079	0.3228	0.0303
0.65	138	-0.4003	0.2316	0.031
0.65	150	-0.0419	0.3113	0.03
0.65	162	0.3887	0.2855	0.031
0.65	198	-0.254	0.3445	0.0304
0.65	210	0.4446	0.2478	0.0313
0.65	222	0.2849	0.2599	0.0305
0.65	234	0.0727	0.2394	0.03
0.65	246	-0.0974	0.2588	0.0301
0.75	126	0.898	0.1175	0.035
0.75	138	-0.3284	0.3221	0.0307
0.75	150	0.5771	0.2333	0.0321
0.75	162	0.1311	0.3585	0.0301
0.75	210	-0.4094	0.2986	0.0311
0.75	222	0.1505	0.2407	0.0302
0.75	234	0.0443	0.2289	0.03
0.75	246	-0.4673	0.2524	0.0314
0.75	258	0.0125	0.4353	0.03
0.85	126	0.0569	0.3825	0.03
0.85	138	0.1456	0.3768	0.0301
0.85	210	0.139	0.4048	0.0301
0.85	222	-0.366	0.1998	0.0309
0.85	234	0.1528	0.2118	0.0302
0.85	246	-0.0093	0.2702	0.03
0.95	222	-0.8428	0.1727	0.0344
0.95	234	0.2799	0.293	0.0305