CLAS Physics Database

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Measurement E151M3295

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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 :	0.1435 GeV²
W :	1505 GeV
ε :	0.889
E_beam :	2.2596 GeV
ε_L:	0.1924

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	294	-0.0632	0.2617	0.03
0.55	114	-0.0438	0.2169	0.03
0.55	282	-0.4953	0.2107	0.0316
0.65	102	-0.005	0.2476	0.03
0.65	114	-0.435	0.2015	0.0312
0.65	126	0.2746	0.2481	0.0305
0.65	138	0.0294	0.2271	0.03
0.65	222	-0.066	0.2327	0.03
0.65	234	-0.2535	0.2165	0.0304
0.65	294	-0.1626	0.2422	0.0302
0.75	102	0.0218	0.222	0.03
0.75	114	0.1845	0.2162	0.0302
0.75	126	0.3552	0.2016	0.0308
0.75	210	-0.2176	0.2545	0.0303
0.75	222	0.2455	0.2337	0.0304
0.75	234	0.1327	0.2237	0.0301
0.75	246	-0.2181	0.2109	0.0303
0.75	258	-0.1597	0.2501	0.0302
0.85	78	0.1622	0.2175	0.0302
0.85	114	0.4883	0.2298	0.0315
0.85	126	-0.2109	0.2639	0.0303
0.85	138	0.149	0.2447	0.0301
0.85	222	-0.2122	0.2199	0.0303
0.85	234	-0.0674	0.2295	0.03
0.85	246	-0.045	0.2049	0.03
0.85	258	-0.2944	0.2422	0.0306
0.95	102	0.1623	0.2334	0.0302
0.95	234	0.5314	0.2047	0.0318
0.95	246	-0.3047	0.237	0.0306
0.95	258	0.0185	0.2224	0.03
0.95	270	-0.149	0.2245	0.0301
0.25	66	-0.4929	0.2064	0.0316
0.25	78	-0.3731	0.2407	0.0309
0.25	294	-0.0554	0.249	0.03
0.35	282	-0.0123	0.2358	0.03
0.35	294	-0.3414	0.2287	0.0308
0.45	270	0.1749	0.2477	0.0302
0.45	282	-0.1429	0.2091	0.0301
0.45	294	-0.1426	0.2218	0.0301
0.55	114	0.0953	0.2321	0.0301
0.65	102	-0.1825	0.2474	0.0302
0.65	114	0.09	0.1965	0.0301
0.65	126	-0.2496	0.2168	0.0304
0.65	138	-0.2924	0.238	0.0306
0.65	222	-0.133	0.2576	0.0301
0.65	234	-0.1292	0.2213	0.0301
0.65	246	0.0194	0.2112	0.03
0.65	294	-0.1742	0.2294	0.0302
0.75	102	0.4533	0.2103	0.0313
0.75	114	0.3259	0.1961	0.0307
0.75	126	0.0153	0.2226	0.03
0.75	138	-0.0722	0.2462	0.03
0.75	210	0.2986	0.2518	0.0306
0.75	222	0.2222	0.2221	0.0303
0.75	234	-0.2546	0.2022	0.0304
0.75	246	-0.3401	0.205	0.0308
0.75	258	0.1107	0.2166	0.0301
0.85	78	0.187	0.2253	0.0302
0.85	90	0.1466	0.2488	0.0301
0.85	126	-0.1536	0.2491	0.0302
0.85	222	0.2099	0.2566	0.0303
0.85	234	-0.0936	0.2059	0.0301
0.85	246	0.05	0.2289	0.03
0.85	258	-0.0159	0.24	0.03
0.95	90	-0.5019	0.2333	0.0316
0.95	258	-0.5163	0.2321	0.0317
0.95	270	0.0861	0.215	0.03